Lousi38

My local shop here said they could open up the secondary mufflers, remove the baffles, and install a straight pipe all the way through, close it up again.

I want a louder exhaust, and this would allow the car to look spec but with louder rumble. They said downside to this approach, they said, is that once the baffles are removed, they cant be fixed back to original specs again. Any views?

John Veninger

Don't destroy the cats. Go and buy a set of cat by-pass pipes.

Lousi38

John

Why do you recommend not destroying the cats? I priced out bypass pipes and it's $800...are the cats necessary to pass emission tests, etc? Thank you.

Lousi38

John

Why do you recommend not destroying the cats? I priced out bypass pipes and it's $800...are the cats necessary to pass emission tests, etc? Thank you.

Snipe656

I would not destroy them either, I would hang onto them. Just in case you ever need to sell the vehicle or just in case ever move somewhere that actually checks for that equipment. Probably some other reasons out there. Did you ask the muffler shop how much if they made the bypass pipes? What year/model is this for?

Lousi38

All, thank you. My shop's approach would have ended the two rear mufflers...not cool. Bypass kit it is.

Snipe656

Another nice thing about doing any sort of kit is if you do not like it then in theory you should be able to revert back to what you have today.

7 Summits

The hanksville bypass are about half of what the fabspeed ones cost.

Snipe656

When I looked they were cheaper but I do not remember them being half. I think it was a couple hundred less.

North Shore 911

I'm with Snipe on this.... I installed the Fabspeed Seconday Cat Bypass pipes on my non-PSE '12 Cayenne S to get closer to the throatier growl that I've got on my 2010 911 4S Cab (with PSE and Fabspeed Sport Headers and 200-cel Cats). I wrote up a post on this with video clips for pre- and post-installation, and I love the new exhaust note at: https://rennlist.com/forums/porsche-...cayenne-s.html

Recognizing that this sound isn't for everyone, I kept the original pipes in case I want to swap them back on if/when I sell my PiG. It's a relatively easy job, so if you end up not liking the sound or want to sell it with the stock set up, keeping the stock pipes gives you options down the road . FWIW, I think a set of these pipes were recently listed and sold on RL for $450, so it's worth watching the RL and other forum classifieds for a decent deal versus list ...

John@Fabspeed

Glad you are enjoying the pipes my friend!

8202632

X2 on fabspeed

John@Fabspeed

Thanks very much!

Tipper

holy thread revival.
Phil, is there a major tonal/sound difference between the X Pipe and the X pipe Sports Cats?
I have Fister mod OE mufflers.