Supersprint Catted Front Pipes with HJS Metallic Sport Catalytic Converters for BMW M3/M4 F80 F82 F83 High-Flow Performance Exhaust Upgrade (989632)

BMW F8x M3 and M4 HJS Sports Cat Front Section by Supersprint - Part Number 989632

Give your S55-powered M3 or M4 the exhaust it deserves with this free-flowing front section featuring HJS metal-substrate sports catalysts. This premium Supersprint assembly replaces the restrictive OE centre section to unlock stronger mid-range punch, faster turbo response and a richer, more motorsport-inspired soundtrack without the harshness. We have fitted this setup for customers in our workshop and the feedback on driveability, fitment and tone has been outstanding.

Why enthusiasts choose this sports cat front section

• HJS metal core sports catalysts reduce back pressure for improved throttle response and lower exhaust gas temperatures.
• Perfect match with Supersprint race de-cat downpipes for maximum flow potential, while also working seamlessly with stock downpipes.
• OE-style connections and precise geometry for a straightforward install and factory-like alignment.
• Clean, deeper exhaust note with crisp turbo detail - refined on the motorway yet purposeful under load.
• Engineered by Supersprint for durability, consistency and long-term reliability.

If running de-cat downpipes, suitable software or an appropriate calibration may be required to prevent warning lights and fault codes. Speak to us for guidance.

What you receive

• Front section with HJS metal-substrate sports catalytic converters

Fitment

• BMW F80 M3 2012 - 2015
• BMW F80 LCI M3 2015 - 2018
• BMW F82 and F83 M4 2013 - 2017
• BMW F82 and F83 LCI M4 2016 - 2018

Real-world results from our workshop

Installed on multiple customer F8x cars, this setup consistently delivers sharper response, smoother power delivery and a highly desirable tone. Fitment is spot-on and the finish quality is exactly what you expect from Supersprint.

Installation and support

Professional fitting recommended. Book with MJ Modifications in Warwickshire - request a quote via info@mjmodifications.co.uk. We are happy to advise on pairing with downpipes, resonated or straight centre sections and rear silencers to achieve your ideal sound and flow.

Compatibility check

We will verify fitment before dispatch. Add your UK registration or the last 7 digits of your VIN at checkout so we can confirm the correct parts for your vehicle.

Part number

989632

Manufacturer and warranty

Manufactured by Supersprint. Supplied with a three year Supersprint warranty.

Looking for alternatives

We can supply other Supersprint centre section options on request, including resonated and non-resonated configurations for different sound preferences. Contact our team for recommendations.

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