0” inlet and 4

Adjustable coilover upper mounts

and street/strip applications that push engines to their limits

None-tapered design small end

5150 AutoSport Factory+ Rebuild Kit, BMW S14 Engine:S14B25 0” inlet and 4You love your naturally aspirated BMW. You know you could add more power with a turbo conversion, but you already love the way it sounds, feels, and drives. Many customers aren't interested in the extra wear and tear of forced induction, power lags, or a crowded engine bay. For the classic BMW enthusiast interested in rebuilding their engine with bulletproof internals, were introducing the 5150 Factory+ Kit. A carefully curated, budget friendly option