Enhance the performance of your BMW's S55 engine with the SLN Ceramic Coated Decat Downpipes, designed specifically for the M2 Competition F87, M3 F80, and M4 F82 models. These downpipes feature a 3.5-inch diameter, providing a significant power gain, faster turbo spool-up, and improved throttle response.
 
Key Features:
These are the largest bore downpipes on the market for those wanting the very most performance 
Ceramic Coating to reduce engine bay temperatures 
Significant power gain
Faster spool up and better throttle response
Flow-optimised smooth transition design
Increasing the life of the turbos
Reducing under hood temperature
100% bolt-on installation
100% TIG welded
OEM-spec 304 SS flanges
All brackets and mounts as on OEM unit
LHD/RHD Compliant
 
Compatible Vehicles:
2015 – 2018 F80/F82/F83 BMW M3 & M4
2018+ F82 BMW M2 Competition (S55 Only)
 
Upgrade your BMW's exhaust system with SLN's ceramic coated decat downpipes to experience enhanced performance and a more aggressive exhaust note.
 
An ECU tune will be required to fit these downpipes.
 
The use of de-cats, sports cats are for off road/motorsport use only. Using these parts would inhibit your vehicle from passing a MOT test
 
Only EC type-approved components are legal and fit for road use