Quote:
Originally Posted by HP Autowerks
Compare to our project 135i with DP and full Berk Tech. exhaust the 1M is very quiet.
There isn't really any drone to speak of, at least to me. Some people are more sensitive to these kind of things.
We will be testing a mid pipe with resonators later this week or early next.
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That's what I'm on about. No drone to speak of --- on yours. But there is on mine. It's not just that I'm sensitive to a little noise.
I'm well used to loud exhausts. Something similar to your 135i, mine had AR catted downpipes with a Corsa exhaust and the secondary cats taken out. It was loud, but a great sound.
This resonance type noise just within a 400 rpm window has me frowning and clenching my teeth and I either drive below it, or accelerate quickly through it. Otherwise the exhaust sounds fine and is ok.