Ok so I am currently looking for a new exhaust system.

I fianlly made my choice on the Magnaflow system. I was wondering where I could order a full system for a b5 since on magnaflow's website they only sell for the b6.

Also after reading past thread I was wondering what is the difference between a HFC and a TestPipe if I dont live in an area where we have emmision law. Test pipe = noisier ?

Also Could someone clarify the following diagram for me :P



CAT --> DownPipe --> Resonnator Pipe --> Muffler ?

If that is correct what wil I be getting with the magnaflow system only the last two pieces ?

Thanks in advance.

Edit : Ohh yeah, you guys keep talking about getting a CEL ... WTF is that all about ? a special code that is impossible to get ride of ?

 

A test pipe is straight through with no barriers for the exhaust gases, unlike a HFC, it'll maybe add a few hp but definitely be loud. A cel is the check engine light that goes when the O2 sensor right after the cat is removed when installing a testpipe. Usually testpipes come with a bung for threading in and tricking the sensor, usually.