Downpipe with a sports catalyst from the HJS brand dedicated to BMW M140i/M240i/340i/440i/540i/740i with B58B30A E6 engine.
This product is made of stainless steel and is perfectly matched to your vehicle.
By installing this downpipe, you can observe a noticeable increase in performance and improved throttle response.
The crucial significance of this product also lies in reducing exhaust temperatures and relieving the turbocharger.
