Originally Posted by
DeathTrap
Something isn't right. X5d should get way better mileage than that. Do you have any carbon build up issues?
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IDK. I do have a Burger Tuning JB-D on it. I never mpg before installing that. I’ll have disconnect it and recheck mpg
Dinan CAI &Throttle body, ESS Tuning TS2, Bimmerbrakes gen3 headers, UUC SSK & DSSR. Achilles oil pump, VAC oil pan baffle
M3 Motor mounts, UUC Trans mounts, Modified clutch style LSD 3.15, TMS front subframe reinforcement, Koni Yellow sports,
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