Quote:
Originally Posted by JimmyGO5
Dealer told me it's normal until you hit a certain speed and then both exhausts are activated. Hard to believe.
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You are referring to the 40i? Both inner exhaust pipes on the 50i are active on cold starts then all 4 open up after warm up. I did this video on a cold start up at about 30 degrees out and you can see the order on how they system opens up as it gets warmer. Pretty cool way of heating up the exhaust system.
When the idle drops down you can see all 4 pipes snorting when I pop the throttle. The forum brought this to my attention and I had to make a video.