I have a 991.1 Turbo and I’m looking to do a muffler bypass, i did it years ago on my 997 and they were really cheap from fabspeed, i cannot find anything online for the 991 turbos?
i don’t like any of the exhaust systems I’m hearing and they are ridiculously expensive,

Does anyone know a shop or place in south Florida that can build a system? It can’t be that expensive or somewhere online that sells muffler bypass pipes?

thanks

 

That's going to be loud!

 

Fabspeed sells the cat bypass pipes. I'm sure they can fab up a straight pipe set up.

 

Be careful as you may run lean in doing so.

 

There are many different Muffler bypass x-pipes available...

I did a Speedtech 2.5" x-pipe on my 991.1 Turbo S (they also have 3")

Fabspeed has straight-thru resonators which is good also since their system is 2.75", so it will help with sound.

There are many available.

I have many vids of mine on youtube if you want to hear it.

 

I've heard from some tuners that, especially with stock turbos, eliminating all back pressure (i.e. muffler bypass with a simple 15" tube that leaves the turbos and comes out the bumper) can actually result in a loss of power. I thought that was counterintuitive because I think the conventional wisdom with any turbo car is the less restriction after the turbo the better and that the turbo offers all the backpressure one would need/want. Apparently that's not entirely right with the 991 platform? I wonder if anyone else has heard something like this? Please note that I'm referring to OEM turbos only and muffler bypass pipes (not cat bypass!).

 

What tuners told you that? I ran with and with out stock turbos. Sharkwerks exhaust and Fabspeed cat byepass pipes work great. With a simple tune there is no loss in power what so ever. The car put down great power with stock turbos.

 

Did you run cat-bypass pipes or muffler bypass pipes?

 

Go with FVD, cat/muffler bypass, great product aggressive sound and the price is right for only $500. BeAts these other company’s selling exhaust systems for over $2000