Performance M
Milltek Sport Valved Axle-Back/Rear Silencer Performance Exhaust with Active Sound, JET-115 115mm Carbon Tips - BMW M135i xDrive F40 5-Door (2019+) - OPF/GPF Compatible Backbox, 304 Stainless Steel, UK Made
Milltek Sport Valved Axle-Back/Rear Silencer Performance Exhaust with Active Sound, JET-115 115mm Carbon Tips - BMW M135i xDrive F40 5-Door (2019+) - OPF/GPF Compatible Backbox, 304 Stainless Steel, UK Made
Heads-up on cancellations & returns: if you cancel an order or return an item, you won't get back 100% of what you paid. We apply a 10% restocking fee, the outbound shipping is non-refundable, and we have to pass on Shopify / PayPal payment processing fees; these aren't returned to us when we refund you. International orders also lose on exchange-rate spread in both directions. If the original packaging is damaged or missing, a reboxing charge applies. For international orders specifically, if you refuse to pay our shipping invoice or supply a prepaid label after placing the order, the same deductions apply. We're upfront about this — please be sure of your purchase before ordering.
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Milltek valved rear section with JET-115 carbon-fibre tips for BMW M135i xDrive F40 (2019 onwards)
Transform the tone and tail of your BMW M135i F40 with Milltek’s valve-controlled rear exhaust section. Crafted in the UK from 304-grade stainless steel with smooth mandrel bends, this premium system delivers a richer, more purposeful soundtrack and a serious visual upgrade thanks to the aggressive 115 mm carbon-fibre tailpipes.
Highlights
- Purpose-built for BMW M135i xDrive F40 5-door models fitted with OPF or GPF
- Rear section fits after the particulate filter to keep factory emissions hardware in place
- Active Sound Control for switchable sound levels to suit daily driving or spirited use
- JET-115 carbon tailpipes for a motorsport-inspired finish that looks superb in the rear diffuser
- 304 stainless construction for long-term durability and corrosion resistance
- Mandrel-bent tubing promotes efficient gas flow and a clean, sporty tone
- Developed to minimise cabin boom with a deep, refined note on the motorway
- Engineered and manufactured in the UK by Milltek’s expert team
Fitment
Direct-fit for BMW M135i xDrive F40 models from 2019 onwards with OPF/GPF. This is a rear section upgrade that retains the original particulate filter and catalytic converters.
What’s included
- Milltek rear section for BMW M135i F40 with Active Sound Control
- JET-115 115 mm carbon-fibre tailpipe trims
- Fitting hardware supplied by Milltek
Why buy from MJ Modifications
We run this setup on customer cars and love the balance it strikes: deeper tone when you want it, calm when you do not. Fit and finish are excellent, the carbon tips look fantastic, and feedback from our clients has been overwhelmingly positive about the sound quality and lack of drone.
Installation
Professional fitting recommended. MJ Modifications offers installation at our Warwickshire workshop. Request a quote via info@mjmodifications.co.uk.
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