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Had Pfaff do their McCarthy mod on my 997.2.
More expensive than the gundo hack, but very happy with the result. Sound only, no performance improvement.
I did the Fabspeed Exhaust on my 997.1 Carrera S (Headers Sport Muffler Cat Delete and Chrome tips, Cold Air Intake) Don't think there was a lot of power gain but sounds good.
Have sold the the Carra S and bought a 997.TT and installing a Speedtech Exhaust with 200 cell Cats and 3" outlets. Not completed yet so will be interested to hear what is like. If there video is true should sound good.
Also doing a Cobb stage 2 tune.
If you go to the thread on here for Reminiscent of summer you can hear the Fabspeed Exhaust from inside the car.
Also here is a sound clip of the car.
So why not just get the muffs gundo'd and go from there? Doubt you (or anyone) would feel any small incremental HP you may get from putting a lot more money in to it
Look at my pic above. That is the Gundo mod. You can also do the Fister style which puts a connection pipe directly between the inlet and outlet to allow a portion of the gases to bypass the muffler. Mine above mimics how Porsche builds their PSE, just on theirs they have a valve that turns it on and off.
Look at my pic above. That is the Gundo mod. You can also do the Fister style which puts a connection pipe directly between the inlet and outlet to allow a portion of the gases to bypass the muffler. Mine above mimics how Porsche builds their PSE, just on theirs they have a valve that turns it on and off.
As I suggested before, you really should check out the 997 board as there are 100's of threads on there about gundo's, cross pipes, cats, headers, after market systems etc etc etc
I have been looking for x pipe for my 997.2 4GTS and am leaning towards the BillyBoat : Part Number: FPOR-2535
Application: Porsche 997.2 Primary Muffler Bypass Pipes #FPOR-2535 Year: 2009-2012 @ $719 US Funds.
Hi, if you're interested in other aftermarket exhaust options for 997.2 Carrera, we could provide more details. We offer a full exhaust system, which includes mid x-pipe, valvetronic muffler, 4 color customizable quad tips and Fi EXHAUST signature remote control system module. For more information PM or send email to info@fi-exhaust.com. Thank you.
Some of the better sounding systems come from Soul Performance Products.
Thank you very much!
Originally Posted by l8rh8rz
They still haven't developed the system for my car yet.
We've completed R&D and we're building the components for our exhausts. Expect replacement side mufflers, center mufflers, and headers. We'll be posting up a development thread soon.
-Mike
__________________ SOUL PERFORMANCE PRODUCTS Quality Exhaust Solutions, Fair Pricing, and Outstanding Service
John Gaydos- Owner, Performance Specialist
Cell - (484) 883-6197 johng@soulpp.com