Mirror-Polished T304 Performance Downpipe Pair for BMW G80 M3/G82 G83 M4/G87 M2 S58 3.0L Turbo

This S58 downpipe pair uses T304 stainless‑steel construction to reduce factory exhaust restriction, deliver an aggressive exhaust sound and support properly calibrated BMW S58 performance builds for G80/G82/G83/G87 M2/M3/M4.Made of premium T304 stainless steel with polished finish. Built‑in reinforced flex pipes relieve engine vibration stress. CNC machined flanges support a stable, leak‑resistant connection. Direct bolt‑on design matches original mounting points, with all mounting hardware supplied. Proper ECU calibration is recommended for tuning-oriented applications and check-engine-light management.

● BMW G80 M3 Competition S58 3.0L Turbo (Car, Sedan)

● BMW G82 M4 Competition S58 3.0L Turbo (Car, Coupe)

● BMW G83 M4 Competition S58 3.0L Turbo (Car, Convertible)

● BMW G87 M2 Competition S58 3.0L Turbo (Car, Coupe)

● Premium T304 stainless steel material, excellent heat‑resistant and anti‑rust performance

● Mirror polished surface finish for premium visual appearance

● Built‑in heavy‑duty flex pipes absorb engine vibration and help prevent cracking

● CNC precision‑machined flanges provide stable sealing and help avoid exhaust leakage

● Reduces factory exhaust restriction for a deeper sporty exhaust note

● Tuning‑oriented design, with proper ECU calibration recommended for check‑engine‑light management

● Direct bolt‑on fitment, matches original mounting points

● Full installation mounting hardware included inside package

● Ideal for street performance and S58 engine ECU tuning projects

Material: T304 Stainless Steel

Surface Finish: Mirror Polished

Core Component: Integrated reinforced flexible flex pipes

Applicable Engine: S58 3.0L Inline‑Six Turbo

Compatible Chassis: BMW G80 G82 G83 G87 M2/M3/M4 Competition

Installation: Direct bolt‑on

Application: Street Performance / S58 ECU Tuning Build

Left & Right Exhaust Downpipes

Full Set OEM Matching Installation Bolts & Hardware Kit