Milltek Non-Resonated Cat-Back Exhaust - BMW 4 Series F32 428i Auto - OE-Style Twin Outlet - Polished Tips - SSXBM1009

Milltek Non-Resonated Cat-Back Exhaust System for BMW 4 Series F32 428i Auto. Direct factory replacement using OEM hangers, no modification required. Hand-finished T304L stainless steel construction with polished twin outlets engineered to amplify full-throttle character while maintaining OE+ fitment integrity.

Built from T304L stainless and mandrel-bent for consistent flow. Non-resonated design eliminates OE silencing chambers for aggressive tone development across the powerband. CNC-formed polished tips complete the aesthetic upgrade. Tested for durability in demanding conditions.

Fitment:

• BMW 4 Series F32 (2014-2016)
• 428i Auto and manual variants
• Cat-back configuration (factory catalytic converter retained)
• OEM valve compatibility

Engineered for closed-course and track use.

Designed and manufactured in the UK with 40+ years of performance exhaust heritage. Tested at the Nurburgring.

Specifications

• Pipe diameter: 76.2mm (3.00")

Fitment

• BMW > 4 Series > F32 428i Coupe (Automatic Gearbox, without Tow Bar, Non xDrive & N20 Engine Only) > 2014 to 2016

• Free US shipping on orders over $250.
• Free pickup at our Dallas shop, usually ready within 24 hours.
• Unused parts can be returned within 30 days. Tunes, opened electronics, merch and installed parts are final sale.
• Want it installed? Book the install at thegbmotors.com.

Full details are on our shipping and returns page.