1X 4th GEAR AND 1X 3rd GEAR PULL (METH) 4th gear pull has what looks like a throttle closure as boost exceeds 25psi
X3 35i N55 PWG FBO MHD Stg2+ E30 (approx E33 mix) xHP Stg3 Catless dp Turbo Outlet Pipe Chargepipe Intake Step 2 Colder Plugs 5in Step FMIC Muffler Delete Walbro 450 LPFP