exhaust

catted DOWNPIPE S55 M2 F87 COMPETIION 3.0T after 2018 For BMW

High‑flow catted downpipe is engineered for BMW F87 M2 Competition (M2C) S55 3.0T twin‑turbo engine, model year 2018‑up. Replace the restrictive factory OEM downpipe assembly. Equipped with high‑performance sports catalytic converter, effectively reduce exhaust back‑pressure, accelerate turbo spool speed, sharpen throttle response, release extra horsepower & torque. Produce deeper aggressive S55 exhaust tone while avoiding harsh cabin drone. Direct bolt‑on replacement, precise OEM flange & O2 sensor ports. Proper installation matches stock mid‑pipe, works great for stock ECU, Stage1 and Stage2 tuned vehicles.

Valved Cat‑Back Exhaust System for BMW M5 G90 S68 4.4T PHEV dual‑Y mid‑pipe valved rear muffler section

This valved cat‑back exhaust system is designed specifically for BMW G90 M5 Sedan / G99 M5 Touring with S68 4.4L V8 twin‑turbo plug‑in hybrid powertrain. The factory exhaust is heavily silenced with multiple large resonators, resulting in flat, artificial sound and high exhaust back‑pressure, which restricts power output and throttle response even after ECU tuning. Our cat‑back exhaust is constructed from premium T304 stainless steel (titanium optional). It adopts full mandrel bent dual‑Y crossover pipe layout, combined with a centre large‑volume resonator and dual side electronic valve muffler assembly. The optimized gas‑flow path drastically reduces back‑pressure and flow turbulence, unlocking authentic deep V8 turbo soundtrack while minimizing highway cabin drone.

S58 Downpipe High Flow Performance With Flex Bellows For BMW S58 G80 G82 G83 G87

OEM S58 turbo downpipes are equipped with restrictive pre‑catalyst and OPF particulate filter, creating high exhaust back‑pressure, slowing turbo spool and muting the factory exhaust note. One side is fitted with multi‑layer flex bellow to absorb engine vibration and thermal expansion to avoid weld cracking. Pre‑tapped OEM‑position bungs for O2 oxygen sensor & exhaust temperature sensor. Precision CNC‑machined flanges ensure leak‑proof connection. 100% bolt‑on direct replacement, no cutting or modification. Works with stock or aftermarket mid‑pipe / cat‑back exhaust. Fits OPF & Non‑OPF S58 vehicles, supports LHD & RHD.