Active Autowerke (AA) BMW S55 Catless/Decat Downpipes (F80 M3, F82/F83 M4, F87 M2 Competition) - 304 Stainless, Flex Joints, Optional White Lightning Ceramic Coating - F8X Non-OPF

Active Autowerke race-spec catalyst delete pipes for BMW F8X S55 non OPF

Looking for a serious exhaust hardware upgrade for your F80, F82 F83 or F87 M2 Competition S55 platform? These premium 304 stainless steel turbo outlet pipes from Active Autowerke replace the restrictive factory catalysts with a straight-through design, cutting backpressure and heat while sharpening spool and throttle response. Built for enthusiasts chasing stronger mid-range punch and a harder charging top end, they deliver the sound, flow and reliability your BMW track build deserves.

What makes this S55 exhaust hardware stand out

• Free flowing catalyst delete design for improved exhaust gas velocity
• Noticeably quicker turbo spool and cleaner throttle response
• Stronger low to mid-range performance with a more urgent top end
• Integrated flex joints to control vibration for refined NVH inside the cabin
• Fabricated from 1.3 to 1.5 mm thick 304 stainless for durability and heat resistance
• Lighter than the OE catalytic assemblies
• Typical gains of 10 to 15 hp when paired with the Active Autowerke F8X mid pipe
• Designed specifically for the S55 F8X chassis for consistent, accurate fitment

Optional thermal barrier coating for maximum heat control

Choose the optional White Lightning ceramic coating by Swain Tech for superior under-bonnet temperature management. This is a true, thick thermal barrier that bonds to the metal and is not a thin cosmetic paint. Expect roughly 35 to 55 percent reduction in radiant heat, quicker cool-down after hard use and sustained exhaust gas velocity. With a melting point over 3,000°F, it is the go-to option for track-driven S55 builds seeking every advantage in consistency and performance.

Proven by us and our customers

We have fitted and run these Active Autowerke S55 race pipes on customer cars and our own projects. Feedback has been consistently positive on fitment quality, tone, spool characteristics and mid-range urgency. If you are building a focused F80 M3, F82 F83 M4 or F87 M2 Competition, this is the exhaust hardware we keep coming back to.

Compatibility

• BMW F80 M3 2012+
• BMW F82 F83 M4 2013+
• BMW F82 F83 M4 CS 2016+
• BMW F87 M2 Competition 2016+ non OPF

Note: Not suitable for Sept 2018 onward vehicles equipped with OPF or GPF. For OPF-equipped models you will need a solution designed specifically for OPF systems.

Part numbers

• 11-038 uncoated
• 11-039 with White Lightning ceramic coating

Fitting and support

Professional installation available at MJ Modifications in Warwickshire. Request a fitting quote and advice on the ideal setup for your BMW by emailing info@mjmodifications.co.uk.

Motorsport use only

These race pipes are part of the Active Autowerke Motorsport Collection and are intended for off-road and track use only.

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