Description
RACING LAB · TRACK EXHAUST
89 mm hydroformed S55 catless downpipes
A matching pair of 89 mm hydroformed, straight-through 304 stainless-steel downpipes for compatible S55-powered BMW F80 M3, F82/F83 M4 and F87 M2 Competition/CS competition builds. One-piece main sections deliver a smooth, uninterrupted primary exhaust route.
89 mm
Main sections
S55
Twin turbo
TRACK ONLY
Catless
Key features
✓Hydroformed primary tubing
One-piece main sections reduce segmented welds and create a smooth main exhaust path.
✓Matched S55 twin-turbo pair
Left and right downpipes are shaped for compatible BMW S55 turbo outlet routing.
✓304 stainless-steel construction
Durable pipework with integrated flexible joints for engine movement.
✓Factory-style sensor provisions
Original-position oxygen-sensor ports support the corresponding S55 installation.
Design & construction
This competition-focused downpipe set replaces the factory primary catalytic converters with straight-through 89 mm main tubes. The hydroformed primary sections and integrated flex joints create a purposeful layout for the S55 twin-turbo exhaust system.
Fitment & installation
For compatible closed-course S55 vehicles, install the matched left and right pipes with the correct turbo outlet and downstream connections. Maintain heat clearance, secure the oxygen-sensor fittings and inspect every exhaust joint following installation. Motorsport calibration and professional fitting are recommended.
What's included
- 1 × left-hand S55 catless downpipe
- 1 × right-hand S55 catless downpipe
Vehicle fitment
BMWM3 F80 — S55 competition application
BMWM4 F82 Coupé / F83 Convertible — S55 competition application
BMWM2 Competition / M2 CS F87 — S55 competition application
Technical specifications
Main diameter89 mm
Material304 stainless steel
ConstructionHydroformed main sections with integrated flex
CatalystsNone (catless)
ApplicationBMW S55 twin turbo
CLOSED-COURSE / COMPETITION USE ONLY
This kit replaces the primary catalytic converters and is not for public-road use.
Warranty
All Racing Lab performance parts are covered by a 1-year limited warranty against manufacturing defects and workmanship issues.
Every component is rigorously inspected to ensure quality and reliability, so you can upgrade your vehicle with confidence. If any issues arise, our support team is ready to assist with fast and hassle-free warranty claims.
Return Policies
14-day change-of-mind returns: Available subject to the store's return conditions, including an applicable 20% restocking fee for approved voluntary returns. Please review our full return policy before ordering.
Australian Consumer Law: Your statutory consumer guarantees and remedies are not restricted by this voluntary returns policy or its 14-day period or restocking fee.
Free Shipping
Enjoy fast & free tracked shipping nationwide.
Pro Installation
Want a hassle-free installation? Book or enquire now.
You May Also Like
Why Buy From Racing Lab
Need help confirming fitment? Contact our Sydney team before ordering.
