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but keep them tall enough so they have enough volume to absorb a hard hit
Pair together with the Dinan Rear Diffuser Surround to complete the full rear look
Dual Rate Spring (327 lbs/in to 448 lbs/in Rear)
The harness kit on its own will not function without a matching IE TrueFlex ethanol tune
VRSF 3.5" Cast Stainless Steel Downpipes | F97 X3 M · F98 X4 M E90 · E91 325i 3.0L I6 [N52] but keep them tall enoughWe 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
