Supersprint BMW S55 Catless Downpipes for the BMW M2 Competition F87, BMW M3 F80 and BMW M4 F82 F83 are the must-have de-cat downpipes for anyone chasing maximum performance, response and sound from the twin-turbo S55 engine. These cat delete downpipes replace the restrictive OEM pre-catalytic converters to dramatically improve exhaust flow right after the turbos, unlocking sharper turbo spool, stronger mid-range and a harder-hitting exhaust note. Built by Supersprint in AISI 304 stainless steel, TIG welded and mandrel bent, they are a direct, bolt-on upgrade that fits like OEM with no cutting or modification.
We run these ourselves and they are a customer favourite for the BMW F80 M3 downpipe upgrade, BMW F82 M4 downpipe upgrade and BMW F87 M2 Competition downpipe upgrade. Fitment is precise, quality is top tier and the gains in flow make this one of the most impactful S55 exhaust upgrades you can make, especially when paired with tuning.
Key features and benefits
- Replaces the OEM pre-catalytic converters – true catless downpipes for maximum flow
- High-grade AISI 304 stainless steel, TIG welded, mandrel bent for durability and smooth flow
- Direct bolt-on fit – OEM-matching flanges, O2 sensor bungs and mounting brackets
- Improved turbo efficiency – reduced back pressure, faster spool and stronger throttle response
- Ideal foundation for S55 tuning and higher power levels
- Deeper, more aggressive exhaust tone from your BMW M2 Competition, M3 or M4
- Precision engineered by Supersprint for consistent, reliable performance
- Part Number: 989611
Compatibility
- BMW F80 M3 2014+
- BMW F82/F83 M4 2014+
- BMW F82 LCI M4 2013–2017
- BMW F82 LCI M4 CS 2015–2017
- BMW F87 LCI M2 Competition 2018+ 410 bhp – non-OPF equipped models only
Please note: Not compatible with Sept 2018+ models equipped with OPF/GPF.
CEL and tuning information
Because the secondary O2 sensors will read different values once these are installed, the Check Engine Light may illuminate. This can be resolved with O2 sensor cheaters also known as micro-cats or with a suitable ECU tune. More information available on request.
Why choose these for your BMW S55
- One of the highest impact BMW S55 downpipe upgrades for performance and sound
- Perfect fitment on F80 M3, F82/F83 M4 and F87 M2 Competition non-OPF models
- Engineered to work seamlessly with OEM components and popular S55 tunes
- Trusted by enthusiasts – excellent feedback on quality, fit and results
Fitting and support
Professional installation recommended. For fitting, speak to Nforcd in Warwickshire. Request a quote at Sales@nforcd.com.
Manufacturer and warranty
Manufactured by: Supersprint
Warranty: Supersprint three year warranty
Search-friendly terms
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