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      01-17-2013, 05:05 PM   #8
BEAR-AvHistory
335is 7DCT/JB4-G5/ISO
 
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Drives: 2011 335is/JB4-G5/ISO Coupe
Join Date: Jun 2011
Location: NC - USA

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A few quick things, its a given that an LSD is a basic requirement on this car for track day events & the stock FMIC heat soaks very quickly. The suspension is softly mounted so you also need to really look at M3 subframe bushings etc.

One additional I would block the gas pedal so the trans does not kick down @ WOT. Its pretty clumsy the way it goes about this.

Tires, brakes, LSD/M3 bushings, FMIC in the first go. If you hit heat related limp mode more cooling/better oil cooler etc.

As per above if you are not going to tune it skip the downpipes. I am running 375whp (DynoJet) without them & can easily push up into the low 400's with an E85 mix. The car is new & under full warrantee & will have issues with the dealer if they see the DP's & depending on the state the emissions inspection can be a problem.
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2014 435M-Sport - 2013 135is Cab JB4/ISO 6MT - 2009 V-Star - 2009 Ford Expedition EL 4X4 - 2003 Xterra 4X4 - 1998 Ranger 4X4 - FFR Cobra MK-IV work in progress

Last edited by BEAR-AvHistory; 01-17-2013 at 05:11 PM.
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