Metzeger

Sorry for late report. I install only RSR muffler the sound is more pronounce but I think going for more...I see muffler bypass from soul exhaust (https://soulpp.com/product/porsche-9...ypass-exhaust/) or going with sport cats...video on my instagram https://www.instagram.com/_rennsport_/

Mr.Woolery

Are the sport cats legal in CA?

Kika

CA requires CARB certification. Fabspeed sport cats do not have CARB certification.

Does that mean you won't pass? If the Tech knows what they are looking for, and checks for CARB certification, no, does that happen with 100% consistency, probably not.

Fabspeed Motorsport

Scott from Fabspeed here, take a look at our Sport Cat X-Pipe ( Fabspeed Motorsport Sport Cat X-pipe ) and Cat Bypass X-Pipe ( Fabspeed Motorsport Cat Bypass X-Pipe ) We developed these systems here in house back in the early 90's with proven Dyno results. If you already have the RSR muffler and are looking for a bit more exhaust note and power, I personally recommend going with the Sport Cat X-Pipe. No check engine light issues ( OBDII Vehicles) and no stinky exhaust fumes. We use HJS cats, 93-95% straight pipe flow/note, but still guarantee no Check Engine Light. We are also currently running our Porsche Fabspeed 15% off Sale! Take a look at the 2 products and feel free to reach out with questions, concerns, and special Forum Pricing!

Endoman

I run the x-pipe sports cat and mufflers, great sound and beautifully made (pity it's hidden). The decat pipes I found a bit too loud but with the cats just right, gentle around town but plenty noticable on wot. With the Fabspeed mufflers the exhaust note is lower pitched than RSRs.
Very pleased with the sytem.

Gbos1

Happy Fabspeed X-Pipe Sport Cat owner here coupled with Fister IIIs it’s loud and nasty with pop crackle pop on downshifts. Ear bleeding at WOT!

Madturk

Anyone tried the gt3 style?

JZ98-993

I run Fabspeed x pipe with Fister stage 2, best combo in my opinion

TheOtherEric

I run LPMM / Fister 1 with 100-cell sport cats and find it very loud; I would never want it any louder. I'm very happy -- sound is magnificent, but definitely interferes with listening to the radio and draws a lot of attention around town.

bart1

I have RSRs with Dansk split 100 cell cats. Love the sound of my car. The cats do make a big difference to tone and volume.

Paolo1

What actually generates the snap crackle pop sound?

TheOtherEric

Sport cats with Supercups or Fister 1/2/3 will do it. RSR mufflers will not. Stock cats with Supercups not so much.

sub-zero

yes me few days ago video soon.

Madturk

Not to highjack but video and details pleaseeeeeee...
thanks