Downpipe with a sports catalyst from HJS dedicated to BMW 540i/640i/740i/840i/M340i xDrive/Z4 M40i and Toyota Supra Mk5
This product is made of stainless steel and is perfectly matched to your vehicle.
By installing this downpipe, a noticeable increase in performance and improvement in throttle response can be observed.
The key importance of this product also lies in reducing exhaust gas temperature and relieving the turbocharger.
