Thread: M Sport Exhaust
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      02-11-2019, 03:20 PM   #49
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Quote:
Originally Posted by ggalanis View Post
I accidentally used the same link twice... So all you got was the cold start.

I edited the post to put the correct url for the second video, which should sound better than the cold start. Here it is for convenience https://youtu.be/t83DpmsxaQg

I was trying to show that the valve on the left exhaust was closed during the cold start and then after the cat was warmed up, there was exhaust coming out both sides even at idle.

GG
On the 50i both are open on a cold/warm start thankfully, not sure about the 40i. Overall the B58 still sounds better than the N55.
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