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      08-01-2011, 04:05 AM   #13
persian54
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Drives: SL550. Prev: E93 M3/335i/Z435i
Join Date: Jun 2009
Location: The Valley, SoCal

Posts: 15,787
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Quote:
Originally Posted by Z K View Post
The N54 overheats on track, need to upgrade the oil cooler and intercooler if you want reliable power.
yup

Catless downpipes would help too
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