Downpipe

SS304 6" HighFlow Section Exhaust Downpipe System 6 Inch 152.4mm B58 Engine Turbo Downpipe for BMW 240i 340i 440i 540i 640i 740i

Stock B58 turbo downpipe is heavily restricted by small‑bore piping and OEM catalytic unit, generating high exhaust back‑pressure, delaying turbo spool and suppressing both power potential and the signature inline‑six exhaust note. This heavy‑duty 6‑Inch (152.4 mm) SS304 stainless steel high‑flow turbo downpipe is engineered for BMW B58 / B58TU 3.0L turbo engine. Mandrel‑bent full 6‑inch large diameter drastically cuts exhaust back‑pressure, improves exhaust gas flow capacity, delivers faster turbo response, sharper throttle feel and unleashes deeper, louder B58 straight‑six sound. Integrated full‑coverage stainless steel heat shield reduces radiant heat inside engine bay, protects surrounding wiring and plastic components. Built‑in multi‑layer flexible bellows absorbs engine vibration to avoid weld cracking. Pre‑tapped bungs for O2 oxygen sensor and exhaust temperature sensor. CNC machined precision flanges ensure leak‑free sealing.

Downpipe G80 G82 M3 M4 2020+ New One Piece Design S58 3.0T Exhaust System for BMW S58

Performance downpipe developed for BMW S58 3.0L twin‑turbo engine, fits G80 M3 Sedan, G82 M4 Coupe, G83 M4 Convertible (2020‑up). Replace the restrictive OEM catalytic downpipe, greatly cut exhaust back‑pressure, speed up turbo spool‑up, sharpen throttle response and unlock extra horsepower & torque.

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.

Stainless Steel 304 RS3 8V.2 TTRS 8S Racepipe Downpipe Universal Exhaust System Tuning Product for audi 2017+

Performance race‑spec downpipe manufactured from premium 304 stainless steel, specially engineered for Audi RS3 8V.2 and TTRS 8S equipped with EA855 2.5T EVO turbo engine, model year 2017‑up. Replaces the restrictive OEM catalytic downpipe, greatly reduces exhaust back‑pressure, improves exhaust gas flow, delivers faster turbo spool‑up, increased horsepower & torque. Produces an aggressive deep 5‑cylinder exhaust note. Precision 3D scanned for perfect OEM‑level fitment, direct bolt‑on, works with stock or aftermarket mid‑pipe.