Downpipe with a sports catalyst from HJS dedicated to BMW M3/CS / M4/CS/GTS/Cabrio (F80/F82)
This product is made of stainless steel and is perfectly fitted to your vehicle.
By installing this downpipe, you can observe a noticeable increase in performance and an improvement in throttle response.
The crucial importance of this product also lies in reducing exhaust gas temperatures and relieving the turbocharger.
