Skip to content
Delivery to Ireland now available again 🥳
Delivery to Ireland now available again 🥳
  Awaiting stock. Order today for dispatch in 16 working days.

BMW M135i Sports Cat / De-Cat Downpipe Performance Exhaust

This BMW M135i performance exhaust is made in 3"/76.2mm pipework and fits from the turbo to the centre exhaust to replace the standard catalyst.

The sports cat exhaust option will enable you to pass a UK MOT emissions test or police road side checks.

The de-cat sports exhaust option is sold for motorsport and off road use only and will NOT be able to pass a UK MOT emissions test or police road side checks. 

All relevant fittings and gaskets are supplied.

With the Cobra Sport de-cat fitted, independent testing revealed an increase of 20bhp at the wheels and 28 lb-ft of torque before a re-map was applied (please see dyno graph in product images).

Useful Information

  • We deliver to every country in the world, if shipping rates are not available at checkout please contact us.
  • Some item(s) are not actively held in stock and usually sell out quickly, please contact sales to perform a stock check if you are unsure.
  • Full tracking is available for all orders, you will receive tracking and dispatch updates via email.
  • It can take up-to 16 working days for out of stock orders to be dispatched.
For more shipping & delivery information, please click here.
We offer fitting on most of our products at our facility in Warrington, Cheshire. Please contact us to get a quote on have us fit your products.
Ultimate Customs Group LTD do not accept any liability if damage is caused to your car by the installation of this product.

Professional installation is recommended on all of our products. Please contact us to see if we offer a fitting service for the item(s) you wish to purchase.