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They remove the primary cats allowing the turbo's to spool up faster providing greater throttle response whilst lowering EGTs (Exhaust Gas Temperatures)
A substantial increase is detected over a very wide rpm range
is designed to perfectly fit the lines of the unique tailpipes of the Slip-On or Evolution systems
dyno testing and design optimisation
You will not have any difficulties to adjust the lowering when changing your wheel/tire combination
Eibach 15-20mm/5-10mm Lowering Springs - BMW 4 Series 435i | 440i | 430d | 435d X-Drive ONLY Eibach They remove the primary catsPRO KIT Performance Springs #1 Choice of Automotive Enthusiasts Worldwide! Worlds leading Performance Suspension Spring System Engineered and tested to work perfectly with stock dampers First step towards a complete sport suspension system Lower center of gravity lowers vehicle up to 40 mm Lowering = Traction + Attraction Progressive spring design Performance handling The Eibach Pro Kit is the perfect answer for most popular street cars. Its our