Quote:
Originally Posted by engotski
Does the PE still gurgle and pop with secondary cat delete?
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Quote:
Originally Posted by mikeokimster
The note is more smooth and perfectly clean. The back fire is more extreme.
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I have my secondary cats cut out too and it makes the BMW PE sound even better. I was getting really loud pops when revving up and letting off on the throttle at one point, almost like gun shots lol but was just messing around in a tunnel. Definitely my favorite mod to date -- even if it's just for the exhaust note.