R44PerformanceSKU: R44-G80G82-CATBACK-CARBON

Sale price£2,749.99


The R44 Performance G80 M3 and G82 M4 Exhaust System! Have you been wanting some noise for your M3 or M4? Well, we have the only solution!

Welcoming R44 Performance's latest addition to their G8X programme.

After months of development and testing on the S58 platform, we are pleased to release the full Cat-Back system to the market. The R44 System removes the Secondary Cats, OPF Filters on EU Cars (See notes below) and mid silencer. This reduces restrictions and allows a huge amount of extra flow through the exhaust system, resulting in an increase of BHP. 

Creating the perfect soundtrack - We have fitted two bullet silencers mid-pipe to refine the note and added two valves. The valve system works off the OE BMW system. The pipe design at the rear of the car allows air to flow straight through when the valves open as well as through the backbox. Providing a rich tone releasing the hidden burbles and cracks. Check @R44Performance on Socials for Videos 

Wanting to tone down the noise? Close the valves and the airflow will be reduced and pushed into the resonator box. 

OPF EU CARS - We have been using an OPF Delete connector that simulates OPF filter readings. Our pipework has all OPF pipe connections to allow gas readings, this paired with an OPF delete connection results in no Engine Management lights or incorrect readings. - Please opt for the OPF delete Cable when adding the product to your Basket 

Downpipes? Yes they will be released at the start of July 

Sports cats? Yes they will be released at the start of July 


Production has started 25/06/2021

Batch 1 - Week commencing 26/07/21

We will contact you within 1 business day with batch details and expected dates. 

The product is supplied ready to fit to your car with a detailed install video.



  • Carbon Fiber and Stainless Steel 110mm Tips - More tip options to follow
  • 70-75mm Titanium Pipe work 
  • Works with original BMW Valve system 
  • Supplied ready to assemble and fit 
  • EU Vehicle OPF Solution to result in NO ECU/DME changes 
  • Doesn't result in engine management lights 
  • Supplied with detailed fitting guide 
  • Any further questions give us a call, we are here to help!


    • BMW M3 (G80) 3 Series
    • BMW M4 (G82) 4 Series
    • BMW M4 Cabriolet (G83) 4 Series 


    R44 Performance products are supplied with a 1-year manufacturer’s warranty. This warranty covers any manufacturing defects that may occur, outside of usual wear and tear. A replacement unit will be issued or an alternative if the item is discontinued. For our in-depth warranty information please follow the link. "R44 Warranty Information"


    We offer worldwide shipping on all products.
    If upon receiving your product you wish to return it, we offer a 30-day returns policy. For our in-depth returns information please follow the link. "R44 Returns Policy"

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