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Dinan Free Flow Performance Axle-Back Exhaust for BMW 1 Series 135i/135is (E82 E88) 2008-2013 Coupe/Convertible - Stainless Steel, Twin 3.5in Polished Tips, Direct Fit

Dinan Free Flow Performance Axle-Back Exhaust for BMW 1 Series 135i/135is (E82 E88) 2008-2013 Coupe/Convertible - Stainless Steel, Twin 3.5in Polished Tips, Direct Fit

Regular price £1,623.26
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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.

Dinan Rear Section Exhaust Upgrade for BMW 1 Series 135i and 135is E82 E88 2008 to 2013

Give your 1 Series the sound and response it deserves with Dinan’s premium stainless rear silencer system. This bolt-on back box enhances gas flow for sharper throttle feel and a richer, deeper tone that stays calm on a steady cruise yet comes alive when you press on. If you are after a quality stainless rear muffler for a 135i or 135is that looks factory plus and fits perfectly, this is the smart choice.

What makes this Dinan rear section stand out

  • Improved flow characteristics for genuine responsiveness compared to the factory back box.
  • Refined soundtrack at motorway speeds with an assertive growl under load for an engaging drive.
  • Constructed entirely from corrosion-resistant stainless steel for durability in UK conditions.
  • Direct replacement using OEM mounting points for a straightforward installation.
  • Reduced mass versus stock for a more agile feel.
  • Twin 3.5 in polished tailpipes deliver a tasteful, motorsport-inspired finish that fills the 1 Series valance properly.

We rate this upgrade highly at MJ Modifications. We have installed this system for customers who wanted a tasteful sound upgrade without the harshness of cheaper options, and feedback has been consistently positive on tone, fit and finish.

Compatibility

  • BMW 1 Series 135i E82 Coupe 2008 to 2013
  • BMW 1 Series 135i E88 Convertible 2008 to 2013
  • BMW 135is 2013

Finish and fitment details

High-grade stainless tubing and canisters with beautifully finished twin 3.5 in polished outlets give an OEM-plus look. The system utilises the factory hangers for a neat, direct-fit solution and pairs seamlessly with the standard mid-pipe on both coupe and cabriolet models.

Fitting service

Want it installed professionally? Book fitting with MJ Modifications in Warwickshire. Request a quote via info@mjmodifications.co.uk.

Why choose this upgrade

If you are searching for a BMW 135i rear silencer, 1 Series E82 back box, E88 convertible sports muffler, stainless rear section for 135is, performance tailpipes for BMW 1er, UK bolt-on rear exhaust, twin outlet polished tips for 135i, or a direct replacement rear muffler that enhances sound and response without looking out of place, this Dinan unit delivers. It is a premium, stainless solution that balances everyday refinement with a purposeful note when you want it.

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