Quote:
Originally Posted by BcuzAWD
This was my set up.
Secondary cats removed
Resonator removed
2.5 inch piping from where the secondary cats started all the way through to
the new magnaflow race muffler with x-pipe
The race muffler is being placed where the resonator was originally and then 3 inch piping from the new race muffler to the 3.5 inch double walled style tips.
Doesn't really yeild any gains but it's a nicer sounding exhaust. Similar to E46 M3.
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Nice! Yeah, I was curious about it because I saw a couple of videos and a thread on here somewhere about it. I cut off my stock muffler and have welded the Active Autowerke axle-back exhaust. I've been trying to dig up a diagram of piping. So If I were to delete my secondary cat, I would need new piping correct? How much did it run you, if you don't mind me asking? And recommend anywhere to go get it done?
I'm interested in possibly doing this in the next month.