phx991

Preferably those with non-PSE ans without other exhaust mods?

Is the sound comparable to PSE exhaust?

Any droning at highway speeds?

Any regrets?

Sounds clips would be appreciated.

J.Ho

I have PSE, but removed the PSE muffler and had a Soul Performance X-Pipe installed for a while. LOUD really loud. Awesome but LOUD. Neighbors hating on me LOUD.

Due to that I back to the PSE muffler but have the Soul sport cats. Not much volume more than before, more turbo whistle, and defintley more power.

Soul Performance

You had our prototype X-Pipe AND our Sport Cats - definitely sounded amazing, it's a true shame your neighbors don't have good taste like you!

Glad you like the Sport Cats alone, Jeff! More power and sound with no CEL, can't beat it. We have to get you set up with 4" bolt on tips now, call us up!

phx991, have you considered upgrading to Sport Catalytic Converters? There is more power to be had, more of an increase in turbo sound than with changing the rear exhaust, and no check engine light.

-Mike in Marketing

phx991

Any sound clips available of what the sport cats alone sound like? I'd like it to be a little louder, but not to the point of annoying neighbors. Also concerned about a constant drone at highway speeds.

By the way, I do not have PSE

Soul Performance

Understood about the PSE!

The factory exhaust systems are very well designed with the necessary engineering to prevent droning. With Sport Catalytic Converters we did not notice an increase in drone. Volume does increase, but it's not unbearable at all. You'll notice an increase in turbo sound and quicker spool times. Catbypass Pipes will be louder and offer more aggressive burbles and pops on deceleration in Sport mode. If you are on the fence about volume level, you might want to experience them in person first. I personally would go right to Catbypass Pipes for their aggressive sound.

That said, we are looking to have both base and S cars without PSE to come in house for development for Sport Catalytic Converters and Catbypass Pipes.

-Mike in Marketing

J.Ho

I love the Soul Sport Cats!! I am ready for your valved PSE replacement !

And the Proto Type X-Pipe you made me, besides being a thing of beauty (thats what you call a prototype ??), sounded absolutely KILLER. Frankly once the car was warmed up, it was no problem. It's that stupid loud-as-f@#$ cold-start Idle that is ridiculously loud. Old cars didnt do that!

Soul Performance

Thank you! Yes, that was a prototype, one off, experimental design etc. The loud start is definitely a pain! They do that to increase the exhaust flow over the catalytic converters in order to get them up to operating temperature ASAP to reduce emissions on start up.

wareaglescott

New to the Porsche world. Just ordered my first a C2S. In the learning phases about mods and such.
Is there any before and after dyno results published that quantify the perceived power gains with these exhaust systems?

///M3THOD

http://www.************.com/showthre...ul+performance
C4S, but you get the picture. There's gains throughout the rpm range with both sport cats and bypass pipes.

I had bypass pipes on my C2S (PSE) and it definitely picked up power. I put down 416rwhp/412rwtq. The sport cats offer a little less in the way of gains, but you keep the volume down as well as the occasional catless exhaust smell.

I just traded my car for a new GTS (PSE) and have yet to put any exhaust upgrades on but Im hoping to see some impressive gains there too.

BTW, the bypass pipes on either exhaust sound great. Unfortunately, I DD my car and my gf would bitch about the smell.

Soul Performance

Sport Catalytic Converters dyno results

Cat Bypass Pipes dyno results

More power can be expected with an ECU tune. We often publish dyno information from various third party dyno sources. We take a "don't take our word for it" approach and want our customers to see real results that they could expect if they were to take their car for a dyno session. We don't believe in padding numbers, we average out our runs and don't just go with the largest delta (weakest stock run / most powerful updated hardware run). Potentially less impressive than the competition? Maybe, but integrity comes first for us.

-Mike in Marketing

Boulder Mike

Hi there- so the x-pipe prototype is in the other Soul thread (bottom page 2)? It's essentially the two pipes with center muffler delete? Thanks. I have .2Gts.

Soul Performance

Are you referring to our Trackback Turboback Exhaust? That picked up good power and sounds incredible. We did not post up about our prototype X-pipe as it was a test for J.Ho and it did not increase power - not something we had planned for the market.

Boulder Mike

Yes. I'm referring to your trackback turbo back exhaust. I should have been more clear. Apologies as I am not well versed in exhaust/sport cat mods but here is what I am potentially looking for:


1. More sound; power not an issue or huge want as my .2GTS has plenty of power for me.


2. Ability to return to stock in two shakes of a lambs tail.


3. Limited mods, no fitment issues, no warranty issues or CEL.


4. Not spend a ton of $.


The turbo back looked like it might be an interesting fit for me. Any advice is appreciated.


Regards, Mike

Boulder Mike

Soul Performance- I forgot to ask if the turbo back exhaust could attach to the factory black tips that came with my car. Thanks again.

Soul Performance

Since the Trackback is a 3" full replacement exhaust and catalytic converter delete, it is more likely that you might raise some eyebrows at the dealer. While you wouldn't be able to use your OEM black tips, we do offer a variety of different options. When running catless we recommend either a tune to eliminate the CEL (could create warranty concerns) or an O2 sensor spacer which we see success with but there is always a chance for CEL when catless.

Mike, with the information you've provided here about what you are looking for, it seems like you should focus on a set of Sport Catalytic Converters. No check engine light guaranteed, easy installation and a vastly improved sound when paired with the factory PSE so you can use your own tips. To top it off, most dealers will not give you a hard time with Sport Cats, but I do always recommend having a good relationship with your Service Advisor/Manager at your dealer, that will go a very long way.