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Milltek
Milltek Cat-Back Exhaust – BMW M340i / M440i (G20/G22/G26) B58 – GT-100 Cerakote Black
$3,512.81
OVERVIEW
The Milltek cat-back for the B58 M340i and M440i is a resonated 76.2mm T304 stainless system finished with quad 100mm GT-100 tips. It adds a richer Milltek tone and reduced backpressure while remaining a road-friendly, resonated design that bolts on without cutting the OE system. Finished in GT-100 Cerakote Black.
SPECS
- T304 aircraft-grade stainless steel construction
- Mandrel-bent, TIG-welded; hand-finished tips
- Direct bolt-on — does not require the OE system to be cut (cat-back systems)
- 76.2mm (3.0") piping; quad 100mm GT-100 tailpipes
- Resonated (road-legal class) — not a de-cat
- Optional Active Valve Control (Plug-and-Play remote, SSXBM1275)
PARTS INCLUDED
- Milltek resonated cat-back system
- Quad GT-100 tailpipes (per selected finish)
- Clamps and fitting hardware
TECH RESOURCES
- Optional: Active Valve Control Plug-and-Play remote (SSXBM1275), sold separately
- Resonated cat-back — retains the factory catalysts
- Professional installation recommended
PART NUMBER
- GT-100 Cerakote Black — SSXBM1274
VEHICLE APPLICATIONS
| Make | Model | Chassis | Engine | Year |
|---|---|---|---|---|
| BMW | M340i / M340i xDrive | G20 / G21 | B58 3.0L | 2020+ |
| BMW | M440i / M440i xDrive | G22 / G23 / G26 | B58 3.0L | 2021+ |