AIRTEC Motorsport S63TU Race Downpipes - Catless/Decat/De-Cat Front Pipes for BMW M5 F10 & M6 F06 Gran Coupe F12 F13 (S

Airtec Motorsport Race Downpipes for BMW S63TU Platform

Unlock serious performance on the BMW F10 M5 and F06 F12 F13 M6 with these Airtec Motorsport straight-through turbo outlet pipes. By removing the primary catalysts and freeing up the hottest part of the system, these front pipes transform response, improve flow and deliver a sharper, harder-edged soundtrack from the twin-turbo V8. Ideal for Stage 2 calibrations and track builds, they are the go-to upgrade for enthusiasts chasing faster spool, stronger mid-range and a more aggressive tone.

Engineered specifically for the S63B44TU, Airtec’s cast bellmouth elbow keeps diameter consistent right off the turbine housing, maintaining gas velocity for improved turbo efficiency. Precision mandrel-bent T304 stainless steel and quality welds ensure a durable, leak-free fit that integrates with the factory cat-back or most aftermarket systems. Finished with an AIRTEC laser-cut plaque, they look as good as they perform.

Why enthusiasts choose these front pipes

• Primary catalyst delete design for maximum flow and reduced backpressure
• Cast bellmouth elbows retain size at the turbo outlet for quicker response
• High-grade stainless construction with smooth mandrel bends
• Direct bolt-on to OEM rear section and compatible performance exhausts
• Amplified V8 soundtrack and noticeably faster turbo spool
• Perfect foundation for Stage 2 ECU software and supporting hardware
• AIRTEC Motorsport build quality and finish

We run these pipes on our own S63TU builds and customer cars. Feedback is consistently positive: crisper throttle, more urgent acceleration and a deeper, motorsport-inspired note without unwanted drone when paired with the right cat-back. If you are searching for BMW F10 M5 turbo downpipe upgrade, M6 Gran Coupé performance front pipes, S63TU race downpipes or primary cat delete for track use, this is a proven solution from a trusted British brand.

Applications

• BMW M5 F10 with S63B44TU
• BMW M6 F06 Gran Coupé, F12 Convertible, F13 Coupé with S63B44TU

Fitting and support

Professional installation available with MJ Modifications in Warwickshire. For a fitting quote or to discuss your S63TU setup and tuning path, email info@mjmodifications.co.uk.

Popular search terms

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Legal note: Removal of catalytic converters is intended for off-road and track use only. Not road legal in the UK. Check local emissions and MOT regulations before purchase and installation.