Quote:
Originally Posted by e93boy
Were there any draw backs removing the secondary cats? Like huge mpg loss, Check engine or any other lights, Drone, ect..? I have a remus Quad on my e92 328 and I have removed the resonator but The sound is not quite there. I was either looking to remove 2ndary Cats, or increase piping from Cat back to 3". Any help would be great thanks!
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Nope, only happiness from me here. I highly recommend it. I would also discourage you from increasing your piping diameter. Dual 2.5" is fine for 3.0 i6, you would lose back pressure with 3" and while it would be louder, it wouldn't sound very good.