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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Has anyone unbolted after the DP's for track days?



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      04-02-2008, 07:29 PM   #23
M3to335
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      04-02-2008, 08:06 PM   #24
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If anything, without significant improvements to the handling of this car you wont be able to take full advantage of the power we already have.
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      04-02-2008, 09:57 PM   #25
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Quote:
Originally Posted by Mr. 5 View Post
Terry had cutouts on his car but he didn't notice any increase and it was just ridiculously loud so he went back.

I feel that if it relly benefited him then he would have kept them since he is so obsessive for being faster and faster. (aren't we all)
Based on this, I don't think it's worth it.
I have his old exhaust system with the cutouts. I've opened them up during my last 2 autocross events. Its loud, but not TOO loud... I still have my stock downpipes so...

Anyway, I opened them up less for power, more for the reduced backpressure on the engine, hopefully leading to a slightly cooler running engine. Right after my runs I see oil temps reaching 270+.
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      04-03-2008, 02:56 AM   #26
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Quote:
Originally Posted by Sniz View Post
so you were dumping right out of the turbo?? I hope you didnt drive it that way!!
No from the exhaust. DPs unbolted from the turbo sounds horrible.
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