• Milltek OPF Back Exhaust | BMW G20/21 M340i & G22 M440i - OE Tips

Milltek OPF Back Exhaust | BMW G20/21 M340i & G22 M440i - OE Tips

$2,134.65
$2,134.65
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Direct factory replacement OPF back exhaust system for BMW G20/21 M340i and G22 M440i models. Uses OEM tailpipe trims, requiring no modification to your vehicle. Hand-finished T304L stainless steel construction with mandrel-bent piping engineered for optimal flow and tone character across the rev range.

Available in multiple configurations to suit your performance and sound preferences. Each system is dyno-tested and designed as a complete direct replacement for the original equipment, maintaining factory fitment points and OE hanger compatibility.

  • T304L hand-finished stainless steel construction
  • Mandrel-bent tubing for optimized flow
  • OPF-compatible, no secondary catalyst removal required
  • Uses original BMW tailpipe trims
  • Direct OEM+ fitment - no modification needed
  • Multiple valve and resonance configurations available
  • EC type-approved for European market

Engineered to deliver measurable performance gains while preserving the engineered tone character your M340i or M440i demands. Select your preferred configuration above to view system specifications and sound profile options.

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

Milltek OPF Back Exhaust | BMW G20/21 M340i & G22 M440i - OE Tips

$2,134.65

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    Really pleased with the quality for the price. The product felt premium, worked perfectly out of the box, and was well packaged.

    Jamie Carter
    Manchester, England

Can I return a part after it has been installed?

Generally, installed or used performance parts cannot be returned. We strongly recommend verifying vehicle fitment and inspecting the product before installation.

Can I cancel my order after it has been placed?

We begin processing orders as quickly as possible. If you need to cancel, contact us immediately. Once an order has entered fulfillment, been submitted to a supplier, or shipped, cancellation may no longer be possible.

Will this part fit my vehicle?

Fitment varies by year, make, model, trim, engine, and drivetrain. Use our vehicle fitment information to confirm compatibility. If you're unsure, contact us with your VIN and we'll help verify fitment before you order.

How do I know if this is the right upgrade for my build?

Not every upgrade makes sense for every vehicle or build. Tell us your vehicle, current modifications, and performance goals, and we'll help determine whether this product is a good fit.

Are the products you sell authentic?

Yes. We source products through established manufacturers and authorized distribution channels. We do not sell counterfeit or imitation performance parts.

Is professional installation recommended?

For most performance components, yes. Proper installation is critical for fitment, reliability, and performance. Some products may also require specialized tools, programming, tuning, or additional supporting modifications.