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Ships within 48 hours · Estimated delivery Aug 2 - Aug 7
Dual Rate Spring (327 lbs/in to 448 lbs/in Rear)
Optimized launch control
The ARM MK6 Competition FMIC upgrade is the ultimate cooling solution for your big turbo MK6 build
85mm inlet side to 66mm turbo side (before adapter plates)
Link CNC Machined from Billet 7075-T6 Aluminum
VRSF 3.5" Cast Stainless Steel Downpipes | F97 X3 M · F98 X4 M E90 · E91 325i 3.0L I6 [N52] Dual Rate Spring (327 lbs/inWe are proud to introduce our Racing Downpipes for your F97 & F98 BMW X3M & X4M. These stainless steel tube down pipes are the best bang for the buck mod available for your S58, with gains from 30 whp & 35 wtq as a direct bolt on and gains of up to 60 whp and 100 wtq when paired with a DME remap. By replacing the restrictive catalytic converter in the factory downpipes with our high flow, 200 cell catalytic converter, back pressure is significantly
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