(all the testimonials are untouched in their original form, including the spelling errors)
you ever see the movie "Amadeus"? There is a part where Antonio Salieri,
the "bad guy" is old and sitting in a wheel chair and comments about Mozart.
He says "MUSIC!, it was MUSIC!".
You have made me a true advocate of RSS, the "Robin Sun Special".
Message from Rennlist mailing list
Subject: Affordable 993 Exhaust Mods....
From: "Steve Schwing" <email@example.com>
Date: Mon, 15 Feb 1999 20:35:5
a couple of Inquiries here last month I hooked up with Robin Sun here in
Atlanta. Robin has perfected a 993 exhaust modification that is very
slick. Essentially, he cuts the muffler open, makes some mods to
improve flow, and welds them back together. I listened and rode in
Dan....I just went through the exhausting routine of selecting a muffler. Here's what I found:
asking some questions on the list I got varied responses. Most with
Fabiani systems (gen 1) thought they were far too loud. B&B folks
were not real happy either, and, of course, Joe fabiani rants about them
exploding, etc. Anyway, to make a long story short, I ran across
a guy named Robin Sun. Turned out he was local (Atlanta) and he'd
worked out a modification of the stock system which sounded promising.
Robin has quite a collection of mufflers including the Fabiani Gen 2, Factory
Sport, and his own modified stock. I rode in his car with the Fabs,
then with his modifieds and I liked the modifieds the best. We swapped
the factory sports onto my car and he went to work cutting and modifying
(open the cases, open up a restrictor, and weld back together). By
the way, the factory sports were not that impressive. His modified
system is perfect. Not too loud, little to no resonance, improved
throttle response, very smooth sound, factory fit, etc. I've had
them on the car for several weeks now and have added a chip (my 993 is
a 95 hence chippable) and intake.
Let me know if you have any more questions!
This is Dan's testimonial 2 month after he had the RSR Special on his car
many other proud owners of the fine Porsche marque, I just can't leave
well enough alone. I love to tinker and make oftentimes futile attempts
to improve upon what Stuttgart engineers have spent 35 years developing.
I've had several Porsches and not one of them retained it's stock muffler
for long after it found its home in my garage. I have always desired
a throatier sound and more power than the stock setup provides.
Mostly what I ended up with was the throatier sound; much to the dismay
of my neighbors and others sharing the road with me! Then I bought
my first 993. Wow! This was somewhat of a different beast.
The glorious mechanical noise of older 911's was almost gone and the sound
from the tailpipes was nearlyt inaudible. I often found myself stalling
the car when leaving from a dead stop. I knew that those stock mufflers
had to go. But, no longer was I going to put up with a brain rattling
exhaust note that sounded cool for about a day and then just ended up being
a nuisance. I investigated alot of options (Fabspeed was #1 on my
list), but after I was steered towards Robin Sun and his home made RSR
Specials, I felt that I had little to lose. He agreed to send me
the mufflers free of charge on a trial basis and if I liked them, all I
had to do was ship him my stock mufflers and a check for $300. Robin was
a joy to to "business" with and is just a plain nice guy who happens to
be a Porsche nut like myself.
Robin has hit a home run, and I commend him.
Just a note to let you know how much I like the RSR mufflers I bought for my '95 993. I put the mufflers on the evening they arrived, turned the key, and have been smiling for three days! The sound is AWESOME!!
After researching Rennlist for over a year to make a muffler change, I know I made the right decision. And best of all, the lowest cost alternative on the market.
Horsepower gains? Don't know and don't care! My first time going through the six gears under power was equal to the first tme I got my hand in my wife's blouse! The mufflers fit perfectly, look pure stock, and make beautiful music without being intrusive. Who said Americans couldn't improve on German engineering?
Well, you have another satisfied customer. I can actually hear the engine. And does it sound great. Remember that my original complaint about the
stock mufflers was the '96 did not sound as good as my old '86. Well, now it does. Actually it reminds me very much of how the '86 sounded.
It was actually easier to remove and install than I expected. Only about two hours worth of time and I was done. I was so anxious to get it on the
road that I forgot to put the engine cover back on. Oh well, I'll crawl under tomorrow and take care of that.
Check's in the mail, or will be by tomorrow. I'll also box up my old set and send them off tomorrow evening. I'll forward the tracking number to you then.
Thanks again, and I'll pass along your web address to all who are interested. Hopefully you'll see more business from the Cincinnati area.
If there's any way I can do more, let me know.
Robin, We got lucky with the weather here in Chicago over the weekend, 65 degrees in February! It finally allowed me to get out and take a long test run with my new RSR Special Exhausts. I was not disappointed.
Frankly, my concern had been that your exhaust system would be too loud or harsh. Not the case at all. While you have definitely kicked the sound level up a few notches, It still retains that throaty Porsche growl.
And, when you hit 5,000 rpm and the second part of the Varioram intake opens up, Wow, what a great sound! Much more noticeable.
As far as the workmanship, my mechanic noted the stainless steel welds were very neat and clean. They look like new mufflers. Installation was routine. All in all, he gave them thumbs up. He also liked the sound.
Goldilocks mufflers, not too loud, not too soft, just right!
Congratulations on a great product.
I installed my RSR mufflers this weekend. The install was easy thanks to the instructions that you give on your web site. I did the work at my dads house since he has a better garage and is equipped with more tools than I am. It was kind of cool spending the day with him working on the car.
The mufflers sound great. The car has a deep growl now that is very pleasing. When I was young, my father drove his 1965 Corvette to work everyday. I used to wake up at 6 am in the morning to the sound of him starting the engine, pulling out of the garage, and driving down the street. The sound of the RSR's reminded me a lot of this.
Anyway, thanks for everything. It has been a pleasure doing business with you.
Thank you Gert ! - RSR MK2 fitted (V Long)
on the Rennlist By: Mike McGinty <firstname.lastname@example.org>
a brief meeting in a Burger King car park with John Webster (993 coupe)
and Anthony Bradley (993 Targa)last friday, I headed out on Saturday morning
to Switzerland via Gert's place in Belgium to fit an RSR and a Front Protection
Bar (which I "used" this morning).
In my opinion they are just AMAZING ! The burble is just right, and the sound as you stretch your car through the gears really gives you an ear-to-ear grin (Gert!).
They sound great when you press on but are absolutely normal (although lower burble) in normal driving. Originally I was going to take the motorway all the way home but instead I zapped through Belgium and Luxembourg before climbing into the hills in Germany, France and Switzerland on A roads. (Standing over the river Saar in the German vineyards whilst below Luxembourg sat in the full moon and "C2 COU" ticked away behind me was one memorable moment).
Overall the RSR MK2 has transformed the car. We all read stories about the "actual" bhp gain of performance exhaust systems but I feel that this is (now, for me) irrelevant. The RSR MK2 makes my 993 feel "right" - I now have the sports car I really wanted. It certainly feels that it revs up quicker, and that it keeps you much more informed of how the engine is doing. After a few miles I was able to guess the change-up points within + / - 100 rpm just on the note (the RSR develops a hardened "crackle" after 6150 rpm which sounds fabulous).
Thank you to Robin for the design and many many thanks to Gert and family.
Mike ('95 C2 RSR MK2 Polar Silver)
If you were asleep in a small french Hamlet when a thunder of 993 carrera noise came bouncing down your valley then.. er.....sorry :-) ).
Robin's RSR's: Epic Mufflers(Long)
Posted By: Martin Schacht <email@example.com>
Date: Tuesday, 22 August 2000, at 8:11 p.m.
When I first got my 97 C2 last December, it was delivered with aftermarket mufflers. I wasn't aware of it at the time. I soon became disenchanted with the mufflers because of an annoying resonance that occurred at between 2800 and 3000 RPM. I do not think it fair to mention the brand name of the manufacturer. Trust me, it is nobody you know.
am now the proud owner of the Robin Sun's RSR muffler system for my 97
C2. The sound is awesome and aural candy for me as well. The quality of
In addition to the incredible sound, there have been three additional repercussions. The annoying resonance is gone. In addition, for one reason or another, the car seems to run a few degrees cooler. And finally, I find I am driving the car a little harder for the sound feedback.
ships these systems out on a core exchange basis. Once you have tried the
mufflers and like them, you send him the cores and the cost of the RSRs.
From: AVERY DIAMOND <firstname.lastname@example.org>
Subject: MY RSR TESTIMONIAL
Date: Fri, 22 Sep 2000 20:51:54 -0700
Hi Robin: Here are a few thoughts about your RSR mufflers that you can use as my endorsement of your RSR mufflers:
My car is 95 993 black Carrea coupe with 55,000 miles. It is a daily driver often carrying my daughter and me to school and my office which is close by. As we cruise on Interstate 280 on the way from San Mateo to Burlingame (No. Cal), I can now hear what my engine sounds like since I installed a pair of Robin's gourmet mufflers. Even though I stay between 3000-4000 RPM during most of the drive, it is those few times when I punch it to 4500-6000 that I hear my engine give off the nicest wail followed by a modulated growl as the car slows back to normal speed. Those sounds from the exhaust can sometimes be as important to a car nut like me as the first cup of coffee in the morning (the only reason I have my job is to drive my Porsche to and from every day).
The removal of the old mufflers and installation of the RSR's took two of us about an hour and a half. We used ramps instead of a floor jack, and printed out the RSR DIY directions for reference. I am wrench-impaired, and found removing the tips more of a challenge than working with the muffler swap. Robin was kind enough to offer his cell phone number in case we got stuck, but the task and the layout of the 993 muffler system made our task simple. My biggest problem was the WD-40 stains on my shirt.
If you want to hear the engine in your 993, the RSR's will provide the sound you've been missing. The price is right, and Robin's honor-payment policy is a pleasant change in the pre-paid world we live in. He is a nice guy trying to subsidize a hobby that also brings out the best of ours. I am pleased, and so are my ears.
Subject: Long Overdue Testimonial - Feel free to use on website
Sent: Sun, 5 Nov 2000 00:52:04 EST
Went to Willow Springs Race Track last Monday and drove my 993TT like it
was a stolen car and I had just held up a liquor store! The car performed
Subject: RSR Exhaust System
Sent: Thu, 7 Sep 2000 12:51:56 +0100
Hi Robin, I had the mufflers installed on Tuesday and WOW do they sound fantastic....I found myself sitting in the car in the car garage just listening to them....absolutely perfect. My original mufflers with all the extra pieces should be on their way to you now. I had my mechanic ship it back in the same box to the Premio address and attention Robin Sun. I'll have a check headed your way today via Airborne so you should see it tomorrow.
Thanks a bunch for the great product and service,
a note to tell you the muffler cores were shipped UPS ground yesterday.
I also mailed a money order for the RSRs plus the delivery shipping
I was able to actually drive the car with the new mufflers. It sounds great
with the classic throaty mechanical tune you expect from a
do have one question. Do the clamps used to connect the muffler and exhaust
tips or muffler and catalytic converter pull the two sides tight
Barry J. Minister
cash the check maestro!
Subject: The mufflers or on the P-car
Sent: Sun, 24 Dec 2000 18:04:45 EST
the mufflers are on the car today and they sound GREAT.... The changing
of the mufflers was simple, I need to know how make the check out
Sent: Mon, 9 Apr 2001 09:01:35 -0700
posted 06-23-2001 09:35
Tito, EJ is absolutely correct. I have a 97C2S which came with Motorsound. I recently swapped out the mufflers with Robin Sun's RSR's and I think it is a significant improvement in sound without being excessively noisy/goofy etc. They growl and rumble beautifully without any change in resonance, a real pet peeve of mine, and I would say they are roughly 10/15% louder than stock which might seem too quiet, but on extended use is just about right for my tastes.
And, I do believe a part of the Motorsound sound is the beholed airbox which comes with it, and the resulting intake swoosh.
So go to Robin's site below and give them a try. He will send the mufflers to you to try out. Your only cost, if you don't like them (which I seriously doubt) will be a few bucks to send them back to him. Robin's Site
Posts: 24 | From: Western NYS | IP: Logged
Subject: Re: RSR Muffler
Sent: Mon, 16 Jul 2001 12:38:19 -0400
Thanks again and if you need any referrals, please include me.
Posted on Rennlist Discussion Boards » Air/Oil Cooled Discussion Areas » 993 Forum » Umpteenth RSR Muffler Testimonial
Member # 451
posted 07-20-2001 22:19
I just got my RSR mufflers from Robin Sun, and I thought I'd report my impressions on the installation and the sound. For those of you that don't know, Robin modifies stock 993 mufflers for a better sound. See:
First, my car is a '97 C2S with the factory motorsound airbox and stock, non-motorsound mufflers.
The installation took
me two hours, which included figuring out how to jack up the car for the
first time (thanks to this BBS and Robin's DIY section on his web site),
re-packing the old mufflers for shipping, and taking the opportunity to
give the exhaust tips a good scrubbing and polishing. The only thing that
cost me a little time was that I didn't figure out what the brazed-on clip
on the muffler was for until after I had one muffler strap snugged up.
I realized pretty quickly that it must be there for a purpose, so I took
the muffler back off and saw the hanger that the clip hooks to.
Now to the sound: Perfect. No booming. A pleasant gurgle at idle, a throaty growl under throttle. I was afraid it might be too loud, but it isn't - I just love it. It makes me want to go out and drive it even more than before, to send the tach climbing again and again. The subdued sound of the stock mufflers was a real let-down for me, so this modification has made me feel much better about my C2S - the love affair deepens.
I still wish the car had that whirring mechanical sound of my '87 Carrera, but now my 993 has a rather loveable and distinctive sound of its own that the '87 lacks.
This $350 modification is the best money I've spent on this car. You'll like dealing with Robin, too - he's a class act.
'87 Carrera Coupe, Grand
To: "Robin Sun" <email@example.com>
Subject: Love the RSR's
Sent: Mon, 6 Aug 2001 17:21:08 -0500
I got a tad busy today and didn't get the cores and check out today. I'll send them tomorrow via FedEx 3-day so you should have them by end of week.
Thanks and pleasure doing business with you!
Topic: Life with an RSR muffler is...(long)
Here's the best part: I dropped my 13 year old off at the old movie theater in Ann Arbor when I pulled up to the curve and shut the engine off. Usual Porsche occassional stares. Then after a goodbye hug, I fired the sucker up. Wow! The entire line stared. I felt like 19 years old again. That was priceless. I have that incessant urge to rev the sucker at stoplights now when I'm next to Preludes and Mustangs. Best $350 I ever spent. Thank you Robin!
1996 C4S arena red
Subject: Re: RSR muffler
Sent: Mon, 10 Sep 2001 21:57:40 EDT
Robin for the great work producing my RSR mufflers. I would describe
the sound as very tolerable around town and on the freeway, but agressive
enough when I tip into the accelerator pedal. No highway "BUZZZZZ"
like my old B & B, and the quality of workmanship is superb.
To cap it off, quick service as well. I fully recommend your RSR
conversion to anyone who wants
Anir Dhir <firstname.lastname@example.org>
I hope you are doing well during the tragedy we've all experienced this week. Nathalie and I were vacationing in Florida when the attack occurred, and we just completed a 1,000 mile drive home in a rental car after our flight was canceled.
I installed your RSR mufflers on my 1997 993TT today, and wanted to give you some feedback. As many others have commented, the quality of the welding and craftsmanship is excellent. I agree with you that the mufflers should last a long, long time.
I did have some trouble with the installation, but this was no fault of yours. Two of the four 13 mm bolt/nut combinations were severely frozen/rusted and snapped during disassembly, prompting a quick call to Phil Anderson at Suncoast. I was able to reassemble everything except the tips, which will have to wait until my replacement parts arrive. Also of note: on my car, the muffler strap was held on by a 6 mm hex bolt, not a 7 mm hex bolt as shown in your DIY section. Interestingly, the PET part diagram from Phil shows the part to now be an 8 mm "cheese-hd screw". It would seem that Porsche is using the old Italian method of utilizing whatever parts are handy at the time of assembly. ;)
As you had explained, the sound is subtly different - perhaps 10-15% louder, with a nice change in tonal quality. My wife commented that it sounds "cleaner" and "less choked", and I would agree. The overall sound is a bit more rumbly and lower, with no resonance. The sound is more like my Ducati with the Fast by Ferraci pipes, but not nearly as loud. In addition, the mufflers now allow more of the mechanical sounds to shine through.
It may be my imagination, but the car seems to rev just a bit easier and faster. Of course, I just spent the week in a Budget Rent-a-Car Ford Taurus, so anything might seem more performance-oriented by comparison! :)
Robin, I congratulate you on a job well-done. We'll see if anyone notices the upgrade at the Putnam Park PCA DE event this weekend.
Thanks again for the help. Feel free to add my comments to your site if you desire.
From: "Vieler, Ric" <email@example.com>
Subject: another happy customer
Sent: Tue, 23 Oct 2001 13:28:32 -0700
got back from my first drive with your RSR mufflers. Way cool. It
is soooo nice to be done with the resonance from B&B Tri-Flo mufflers.
Topic: I've been RSR'd
posted 12-24-2001 11:37
installed my RSR mufflers Saturday and they are awesome. I have removed
all of the sound deadening padding from the engine bay and can hear the
mufflers even at idle. I have had RSRs on other 993s, but still had the
sound pad in the engine bay. They have a great burble at idle and just
the right amount of raspy bark under load. It is the perfect blend of sophisticated
exhaust sound without the boy-racer listen-to-me drone. The best part of
all is that when driven conservatively, it easily passes the wife test!
Subject: Re: Robin- the sound
Sent: Wed, 13 Feb 2002 21:23:12 EST
Oh yes, "the sound."
1st, Let me tell you what I was looking for... I think of the 993 as a "classy" version of Porsche venerable 911. I therefore wanted to have an authoritative rasp when I hit the key, and perhaps a mild tone as I idled away from a crowd - but not much more. Obviously I was attracted to "motorsound" versions for just that reason. However, what motorsound lacked was the "mechanical" tune that I heard your magic could offer...
So here is how my first moment went.
With great anticipation after install I walked from the back of the car (I took a bit of extra time resetting the twin tips to suit me) and to the key. I had just completed a similar swap a few weeks ago (as you know) w/ my faux motorsound system I mistakenly bought. All I could think about was the time I hit the key after putting THEM on - and then of course my great disbelief when they sounded the same. Anyhow, I reach in the cabin, and I hit the key...
The 3.6 liter then roared to life with no effort & a harmonic tone unlike any that I have ever heard. I jumped from the door sill & ran to the back of the car as to "take it all in." It was "the sound" I was looking for Robin. Authoritative, classy, above & beyond good 'ol motorsound. A true musical note and absolutely not obnoxious in any way. 100% socially acceptable & truly an addition to the cars overall value.
I then took the car for a quick jaunt & found that the interior noise level was low, just as I had hoped. I also had a chance to give the car a strong run up the gears & found myself breaking the tires loose unlike I had ever before. A fluke? I dunno. Quite possibly a result of the RSR muffler.
After zipping back in the driveway I ran in & asked my wife "is that loud?" She says "No no! You just HAVE TO hear this!" She jumped in the driver seat & left me standing at the curb. As she pulled away, I knew that all the RSR rumors I had heard all had merit. It was an outstanding sound, and I had only one guy to thank.
That guy is you Robin. Let me personally say thanks for all your R&D, and for all of your efforts to make this one of the most satisfying swaps I have ever encountered. It is the "right" 993 addition.
On a side note, after dinner tonight I had to go listen one more time. This time I left the garage door down and hit the key. It was grand. I rev-ved the car a few times to enjoy the tone, then shut her down and just smiled. Great job Robin.
Silver Bullet <firstname.lastname@example.org>
I developed a "headache" at about 4:00PM yesterday and went home. I heard
that lying down would help. Well, I didn't make it into the house, so
took it out for a run (again to ensure that my headached was indeed cured)
and couldn't be happier with the sound. I must have looked silly driving
I'd describe the sound as a sweet, raspy, mechanical gurgle (not too loud, but just loud enough) that gives my car a voice to say "Let's rock!" (and cures the common headache!) Whereas, with my Motorsound or RS mufflers it was more like, "Shhh...we mustn't disturb the neighbors...lets wait until we're on the highway...afterall we've been refined for over 35 years".
The RS mufflers did seem to have a lower tone but no other distinguishing characteristics. I will keep the RS mufflers though for when I experiment with opening up the entire exhaust and intake. And the Motorsounds will be my backup.
So...does that answer your question?
My cores and payment (payment will be sent "snail-mail" in case UPS does an "oops" with the shipment).
Subject: RSRs across the pond
Sent: Wed, 14 May 2003 14:10:42 +0100
just wanted to add a little something to the plethora of plaudits you have
regarding the fabulous RSRs - but from from across the pond, here in
As you know, Gert Carnewal handles the European RSR distribution and the guy is truly magnificent in his approach and service. He kept me posted on how long the wait for my RSRs was all along and they arrived very well packed, containing new bolts for installation. After having followed your instructions, I fitted the RSRs myself on a quiet Sunday and all I can say is that both myself and my brother (who stood and watched me fit the mufflers) were truly astounded by the noise. We both just smiled that knowing smile when you know that something is so right. Although the sound is louder, I wouldn't say it was loud, but definitely deeper and far more 'woofly' (is that even a word?).
really is a great product and I can heartily recommend it to anyone considering
a more noticable - more Porsche - sound from their
Mind you - none of the european boxes are as shiny as the ones the US guys get!!
Sat, 27 May 2006 03:25:18 -0400
Robin....Work has been killing me in the past while. I'm sorry its taken
me so long to get back to you. I would like to take the time and thank
The bottom line.....
I would do this again without hesitation.
Value.....can't beat the price!
Installation....1 hour and 3 out of 10 on the difficulty level. You wont need any special skills here. I followed Robin's instructions and it was simple.
Robin.....A stand up guy. Open honest, a true lover of the sport and Porsche. I don't know how he put up with my 1000 questions.
Thanks once again Robin.
Toronto, Ontario, Canada
I would be glad to provide anyone considering the RSR Muffler with follow
Date: Tue, 02 Jan
2007 05:37:57 +0000
Hi Bill....sorry its taken me so long to get back to you. I got caught up with New Years plans.
HAPPY NEW YEAR !
So far I only have about
5000 klm on the RSR Exhaust. Most of the milage I have put on going to
the track and on the track. The exhaust is pretty much
Good Luck Bill,