Milltek Sport 3in/76mm Turbo Decat/Catless Downpipes & Primary Cat Delete Front Pipes for BMW M3/M4 F80 F82 F83 F8x S55 (2014+) - Test Pipes / Straight Pipe Race Front Section - SSXBM1031

SSXBM1031 Primary Catalyst Delete Front Pipes for BMW F80 F82 F83 M3 M4 by Milltek Sport

Let your S55 breathe properly. Milltek Sport’s 76 mm big-bore primary converter delete front pipe set unleashes exhaust flow on the F8x platform, cutting backpressure and unlocking a richer, more aggressive soundtrack. Expect quicker boost response, crisper pedal feel and the ideal foundation for software calibration and further hardware upgrades. If you are searching for F80 M3 test pipes, F82 M4 straight pipes, F83 M4 front pipes, S55 primary cat delete, F8x turbo outlet pipes or race pipes for track use, this is the proven choice.

We have installed this setup on customer cars and our own builds at MJ Modifications. Fitment is spot on, drivability is improved and the tone is exactly what F8x owners want from a performance exhaust front section. Feedback has been consistently excellent for responsiveness and the addictive turbo presence it adds.

Why enthusiasts choose this front section

• 76 mm big-bore primary catalyst removal pipes to maximise gas velocity
• Transforms the soundtrack with a deeper, more motorsport character
• Noticeably faster boost onset for that urgent, on‑throttle feel
• Engineered by Milltek Sport for accurate, repeatable fitment
• Perfect pairing with a remap to realise meaningful power and torque gains
• Built as a dedicated performance front section for the S55 F8x platform

What you receive

• Left‑hand primary catalyst replacement front pipe
• Right‑hand primary catalyst replacement front pipe
• Secondary cat bypass section

Vehicle compatibility

• BMW M3 F80 Saloon 2014 onwards
• BMW M4 F82 Coupé 2014 onwards
• BMW M4 F83 Convertible 2014 onwards

Fitment notes

• Designed to mate to the Milltek Sport cat‑back for F80 M3 and F82 M4
• Requires 2 x 18307851168 gaskets for installation
• Part number: SSXBM1031

Brand and warranty

• Manufacturer: Milltek Sport
• Warranty: 2 years from Milltek Sport

Professional installation available

For fitting, setup and advice, book with MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk and our team will guide you on the best configuration for your build.

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