BMW S55 3in (76mm) Catless/Decat Cat-Delete Race Downpipes by Evolve – Fits F80 M3, F82/F83 M4, F87 M2 Competition – Turbo Downpipe Upgrade, TIG-Welded Stainless, Cast Turbo Flanges – Stage 2 Tune/Remap Ready

Evolve race de-cat pipes for BMW M3 F80, M4 F82 F83 and M2 Competition F87

Give your M car the flow it deserves. This high-performance de-cat pipe set replaces the restrictive factory catalysts with free-flow 76 mm tubing and robust cast turbo inlets, delivering rapid spool, sharper throttle response and a richer, motorsport soundtrack from the S55 twin turbo straight-six. If you are targeting a calibrated stage 2 setup, this hardware is the must-have foundation for strong mid-range torque and top-end power.

We run these on our own S55 builds at MJ Modifications and customer feedback is consistently positive. Expect noticeably faster boost ramp, harder mid-range punch and a deeper, more aggressive tone. When paired with suitable software, typical gains of 60 to 70 bhp and 70 to 80 lb ft are achievable compared with a stock-catted system on a tuned car.

Why choose these Evolve de-cat pipes

• Big reduction in backpressure for improved turbo response and reduced lag
• 76 mm free-flow pipework optimised for the S55 twin-turbo engine
• Precision TIG-welded stainless construction with cast ends on the turbo side for strength and sealing
• Direct bolt-on replacement with an OEM-style fit and finish
• Transforms the exhaust character with a deeper, more purposeful note
• Works with the stock cat-back and most aftermarket systems that accept factory-positioned pipes

Construction and fit

• Stainless steel throughout with high-quality TIG welds
• Cast turbo flanges designed for durability and correct alignment
• Simple installation as a straight swap for factory catalysts

Recommended installation parts

For best results we recommend replacing the following gaskets when fitting:

• 2 x Genuine BMW S55 downpipe gasket - turbo side (M2 Competition, M3 and M4)
• 2 x Genuine BMW S55 downpipe gasket - exhaust side (M2 Competition, M3 and M4)

Vehicle compatibility

• F80 M3 Saloon with S55
• F82 M4 Coupe with S55
• F83 M4 Convertible with S55
• F87 M2 Competition with S55

Not suitable for Euro 6 cars fitted with OPF/GPF. For vehicles with particulate filters you will need an OPF-specific solution. Contact us for guidance.

Professional fitting

Want it installed by specialists who know these cars inside out? Book fitting with MJ Modifications in Warwickshire. Request a quote: info@mjmodifications.co.uk

Part number

F-S55-DP-EVOLVE

Manufacturer

Evolve

Media

Important note

Cat-delete hardware is intended for off-road and track use only.

Search-focused terms

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