FabSpeed BMW M140i / M240i / 340i / 440i / 540i / 740i HJS Euro 6 Sport Catalytic Converter Downpipe



HJS German imported catalytic converters are made from some of the highest grade materials you can find in a catalytic converter. This yields high performance gains and longevity so it wont deteriorate over time like lower grade catalytic converters. These catalytic converters flow up to 93-95% of a straight pipe in most applications. The benefit is that you get the "straight pipe sound" while still being able to provide enough emissions scrubbing to prevent a check engine light.    

Meet the strictest of emissions standards while freeing up power with an HJS 300-cell catalyst downpipe.           

This downpipe is produced by HJS themselves as a solution to meet the strict requirements of Euro 6 compliance. As a master distributor of HJS catalysts, we're happy to import from Germany and supply this downpipe. Availability and lead time may vary depending on production volume. Call and speak to one of our performance specialists for details.                


  • Fits BMW (3.0 Liter Vehicles) M140i (F20/F21) / M240i (F22) / 340i / 440i (F30/F32) / 540i (G30/G31) XDrive Models and 740i (F11/G12) Models

  • 300 cell 2 chamber ECE homologated catalyst cat design improves flow over factory while being Euro 6 compliant

  • Direct bolt-on replacement; no cutting or welding required

  • Does not trigger check engine light

  • 86mm inlet pipe, 80mm output pipe

  • Complies with most emissions regulations, and is Euro 6 certified and has TÜV homoligation (NOTE: It the purchaser's responsibility to verify legality and compliance in their region.)

DISCLAIMER: This product removes the OEM catalytic converters from the vehicle, and as such, is strictly intended for closed track events and off-road use only. This product contains a High-Flow Sport Catalytic Convertor solely intended for track and race cars as it is NOT California Air Resources Board Certified and not EPA certified. You are hereby informed and warned to check your local, state, and federals laws before buying and installing these or any aftermarket parts to be sure whether usage is in violation. All installation-risk and use-risk is borne by the end-user and installer of these parts.