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      12-24-2014, 08:40 PM   #48
kiysersosae
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Drives: 1M, M2CS, M3CS
Join Date: Jul 2013
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Quote:
Originally Posted by flzrider View Post
What I was trying to point out is that the 1M's N54 midpipes have cats, but no resonators, whereas the N55 midpipes have no cats, but does have a resonator. Cats, of course, restrict flow and resonators quiet down sound. So all other things remaining equal, it seems logical there will not be a major upgrade in terms of sound if one were to go from N54 to N55 midpipes on their 1M. If you have a video clip or objective data that proves otherwise, I'd love to see it as I wouldn't mind getting a small sound (and HP) bump on my current exhaust setup.
Do you have catted DP's? Just wondered what the performance/sound would be like would be like with the N54 mid pipes mated to Catted Dp's and Akra exhaust or similar
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