|
135i mods that dont void the warrenty
I've been breaking in my 135i before I start tuning... Im around 7500 miles now so im starting to look for exhaust, ECU, downpipes etc. Any recommendations on performance upgrades that get the best bang for your buck, and can be removed bc the car is leased?
__________________
2008 Montego Blue 135i
Terracotta | Sport Package | Premium Package | 6-Speed
|