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TT.Customz
BMW X5M · X6M

Cat-Back Exhaust System
(Valvetronic)

★★★★★
Be the first to review
£1,899.00
From
Available to order
Fitment F85 / F86
System Cat-Back
Control Valvetronic
Material — Titanium
Titanium
Stainless steel (−£400)
Vehicle Model —
Fast UK Dispatch
Shipped within 2–4 business days (if in stock)
2-Year Warranty
Manufacturer guaranteed quality
Expert Fitment Check
Our team verifies your vehicle specs
Direct to Your Door
Delivered from manufacturer to you

After your order is placed, our technical team will personally contact you to confirm your vehicle details, specifications, and compatibility to ensure the product is manufactured perfectly for your vehicle. If any adjustments are required, we will verify everything with you before production begins.

Description
▾

BMW M3 / BMW M4 Valved Cat-Back Exhaust System

Specifically engineered for the BMW M3 and M4 E90, E92, and E93 models, this valved cat-back exhaust system delivers an enhanced exhaust note, improved performance, and precision OEM-style fitment. Constructed from premium stainless steel, with an optional titanium upgrade, it features a quad-exit design and integrated valvetronic technology for fully adjustable sound. A range of exhaust tip finishes is available to complement your vehicle’s style.

Each system comes complete with full cat-back piping, high-quality clamps and fittings, valve actuators (where applicable), and a dedicated remote-control module for easy valve operation. Every exhaust is hand-built to order using precision welding to ensure strength, longevity, and a seamless fit on standard vehicles.

The adjustable valve functionality allows you to switch from a controlled, refined tone for everyday driving to a bold open-valve roar when you want maximum presence on the road.

Production typically takes up to four weeks from order confirmation, with next-day dispatch once your system is complete. Returns and refunds are accepted only for confirmed manufacturing defects.

Specifications
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SystemCat-Back
ControlValvetronic (electronic valve)
Material OptionsTitanium / Stainless Steel
FinishPolished / Heat-blued titanium
Tip Diameter115mm rolled slash-cut
ConnectionDirect OEM flange fit
Weight Saving~7kg over OEM (titanium)
CertificationRoad legal (EU/UK compliant)
Compatibility
▾
  • BMW X5M (F85) — 2014–2018 S63B44T1 V8 Biturbo
  • BMW X6M (F86) — 2014–2018 S63B44T1 V8 Biturbo
  • Competition Package models — confirmed fit
  • Not compatible with non-M F15/F16 X5/X6
Shipping & Returns
▾

Custom-built to order. Production lead time 10–18 business days. Shipped via DHL Express with full tracking to UK and EU. As each exhaust is manufactured specifically for your vehicle, we are unable to accept returns on custom-built items.

Sport
Open Valve Mode
Refined
Closed Valve Mode
Lighter
Weight Saving vs OEM
2yr
Warranty
Engineering

Built to perform.
Designed to last.

Valvetronic Control
Electronic valve opens fully under sport mode for unrestricted exhaust note. Closes for everyday refinement.
Grade 5 Titanium
Aerospace-grade titanium — lighter, stronger, heat-resistant with a distinctive heat-blued finish.
Direct OEM Fitment
Precision flanges match factory mounting points exactly. No cutting, no adapters. Professional install under 2 hours.
Road Legal
Drive anywhere, every day, without compromise.

Free delivery worldwide

We offer worldwide shipping on all custom builds. Every order is carefully packaged and dispatched with trusted couriers to ensure safe delivery, wherever you’re located.

Customer Satisfaction

All products are thoroughly quality-checked before dispatch. In the rare event of a manufacturing defect or damage on arrival, we’ll work quickly to resolve the issue in line with our returns policy.

Top-notch support

Our dedicated support team is on hand before and after purchase to assist with compatibility checks, order updates, and installation guidance ensuring a smooth experience from start to finish

Secure payments

All payments are processed through trusted, encrypted payment providers for complete peace of mind. Your details are protected at every step of checkout.