Direct-fit alloy boost pipes for the S55 engine in BMW F87 M2 Competition, F80 M3, F82 M4 coupe and F83 M4 convertible. Replaces brittle factory plastic with precision TIG-welded aluminium hot side and cold side pipes.
Eliminates common S55 faults: cracked ducts, boost leaks and throttle hesitation under load
Engineered for Stage 1 and Stage 2 fast-road or track-day use - handles increased boost and heat cycles reliably
No modifications needed; retains OEM mounting points and intercooler routing
Clean under-bonnet appearance - no silicone joins or oversized clamps
