Milltek Sport Stainless Steel Cat-Back Exhaust System for BMW E46 M3 CSL (2003-2007) - Performance, UK Made, No Drone - SSXBM462_1

Milltek Sport Stainless Steel Cat-Back Exhaust System for BMW E46 M3 CSL (2003-2007) - Performance, UK Made, No Drone - SSXBM462_1

£1,523.09
£1,523.09
Sold out
Tax included. Shipping calculated at checkout.

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.

Milltek Cat-back Exhaust - BMW E46 M3 CSL 2003-2007 - Part No: SSXBM462_1

Upgrade your BMW E46 M3 CSL with the Milltek cat-back exhaust for sharper response, a crisper motorsport tone and exceptional durability. This UK engineered and UK built stainless steel cat-back exhaust is the go-to E46 M3 CSL exhaust upgrade for owners who want premium quality, performance-focused flow and a refined soundtrack without drone.

Every Milltek system is designed, developed and hand-finished in the UK by time-served craftsmen. Constructed from aerospace grade type 304 non-magnetic stainless steel, it resists discolouration, delivers long-term corrosion resistance and is built to last. Mandrel-bent pipework maintains a constant radius for optimised gas flow, while carefully selected bore sizes are enlarged over stock to improve exhaust flow and response without sacrificing vital mid-range torque. The result is a sporty, crisp tone with no unwanted NVH, no intrusive cabin resonance and no drone - exactly what you want from a performance cat-back exhaust on a CSL.

  • Direct performance cat-back exhaust upgrade for BMW E46 M3 CSL 2003-2007
  • Part number: SSXBM462_1
  • Aerospace grade type 304 stainless steel - UK made and hand-finished
  • Mandrel bends for smooth, constant-radius flow and improved throttle response
  • Enlarged bore diameter over OEM for optimised performance without losing mid-range torque
  • Sporty, crisp exhaust note engineered to avoid drone, NVH and cabin resonance
  • Durable, corrosion-resistant construction for long-term use on road and track

Why choose this Milltek E46 M3 CSL cat-back exhaust

  • Precision UK engineering and proven Milltek quality
  • Performance-focused design that enhances flow and response
  • Refined CSL-appropriate sound - aggressive when you want it, comfortable when cruising
  • Excellent fit and finish using premium materials

Real-world confidence

We have supplied and run Milltek systems on customer cars and the feedback is consistently positive - superb build quality, great fitment and an addictive CSL exhaust sound without any annoying drone on the motorway. It is a brilliant E46 M3 CSL exhaust upgrade for both fast road and track-day use.

Fitment

  • BMW E46 M3 CSL - 2003 to 2007
  • Cat-back system - replaces exhaust from the catalytic converters back

Professional fitting

Want it fitted right first time? Book professional installation with Nforcd in Warwickshire. Request a fitting quote via Sales@nforcd.com.

Popular search terms

Milltek E46 M3 CSL exhaust, E46 M3 CSL cat-back, BMW E46 M3 CSL performance exhaust, stainless steel catback E46, CSL exhaust upgrade, Milltek cat back BMW M3 CSL, best exhaust for E46 M3 CSL, UK made exhaust E46 CSL, Milltek SSXBM462_1, E46 M3 CSL exhaust system, performance catback BMW M3 E46, non drone exhaust E46 CSL, track day exhaust CSL, Milltek stainless steel exhaust BMW.