R44 BMW M3/M4 Race Cat Back Exhaust System In Titanium With Carbon Tips (G80/G81/G82/G83)
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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 in 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 and below for a fitting / demo video.
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, 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
Weight saving with titanium!
Stock UK G8X Exhaust - 37KG
R44 Titanium G8X Exhaust - 20KG
Check out a Youtube walk-through of the weight comparison - https://youtu.be/QPuIUgnPbeU
We will contact you within 24 hours (Mon - Fri) with batch details and expected dates.
The product is supplied ready to fit your car with a detailed install video.
- Carbon Fibre and Stainless Steel 110mm Tips - More tip options to follow
- 70-75mm Titanium Pipework
- 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 a 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
- BMW M3 (G80) X Drive (2021+) 3 Series
- BMW M4 (G82) X Drive (2021+) 4 Series
We get a large number of custom orders and requests everyday, so as a result it is not always possible for us to keep every item in stock at all times in our warehouse. If you require the item urgently please contact our sales team here to check the stock before you make your purchase.
We totally understand if you're not certain a part will be compatible with your car, so we highly recommend contacting us here with your query. Our friendly sales team will then be in touch to confirm if this part is the correct part you are looking for.
All in stock products ship the same day if ordered before 2pm GMT
For out of stock items we will contact you with an estimated wait time if not otherwise specified above.
We offer worldwide shipping on all products. If upon receiving your product you wish to return; we offer a 30-day returns policy. For our in-depth returns information please follow the link. "R44 Returns Policy
All of our products come with a standard warranty of 1-3 years. This is dependant on the type of product however. For more details please see our warranty page here.