Milltek Equal-Length Midpipe/Center-Centre Section Upgrade Kit (SSXBM1145) for BMW M3 M4 F80 F82 F83 F8x 2014-2018 | Pre-OPF/Non-OPF Cat-Back Owners | 3.0in 76.2mm Exhaust Middle Pipes | Fits Saloon, Coupe, Convertible

Equal-length centre section upgrade for BMW M3 and M4 F8x owners already on a Milltek pre-OPF system

Part number: SSXBM1145

Unlock a crisper, more refined soundtrack and a smoother flow path with Milltek’s equal-length middle pipes. Designed specifically for cars already running a Milltek pre-OPF rear system, this direct-swap centre section updates your setup to Milltek’s latest equal-length layout, delivering that sought-after balanced tone and premium fitment without replacing the entire exhaust assembly.

We have installed this upgrade for customers and the feedback has been consistently excellent for fit, finish and the sophisticated, even pulse character it brings. If you want the latest Milltek equal-length experience from your F8x without buying a full new system, this is the smart, value-packed route.

Why this centre upgrade stands out

• Direct Milltek-to-Milltek conversion for owners of pre-OPF systems
• Equal-length layout for a cleaner, more harmonised exhaust note
• 3.00 inch 76.2 mm bore for consistent, free-flowing gas velocity
• Precision Milltek build quality and proven reliability
• Retains your existing rear section while updating to the newest layout

What is included

• Left-hand centre connection pipe, equal-length
• Right-hand centre connection pipe, equal-length

Vehicle fitment

• BMW M3 F80 Saloon and M3 Competition, 2014 to 2018, non particulate filter models
• BMW M4 F82 Coupe and F83 Convertible and Competition, 2014 to 2018, non particulate filter models
• For vehicles already equipped with a Milltek pre-OPF rear system only

Key details

• Manufacturer: Milltek
• Part number: SSXBM1145
• Bore size: 3.00 inch 76.2 mm
• Warranty: Milltek 2 year warranty

Professional installation

Fitting available at MJ Modifications, Warwickshire. For a quote and lead times, email info@mjmodifications.co.uk. We are happy to advise on compatibility and the best upgrade route for your M3 or M4.

Customer results you can trust

Our customers love the step up in tone, the precise alignment and the overall refinement this centre section brings. It is a superb upgrade for enthusiasts wanting the latest Milltek equal-length feel while keeping their existing Milltek rear setup intact.

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