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      08-25-2017, 05:28 PM   #3
JayPatel92
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Drives: 430i GC
Join Date: Aug 2017
Location: California

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Quote:
Originally Posted by otay View Post
Welcome! Can't help directly, but you might want to start by searching here:

N20, N26, B46, B48 TURBO ENGINE / DRIVETRAIN / EXHAUST MODIFICATIONS
http://f30.bimmerpost.com/forums/forumdisplay.php?f=422

It's a dedicated sub-forum just for the 4-cyl...
thanks I shall try there!
Appreciate 0