HJS German imported catalytic converters are made from some of the highest grade material 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.
Fabspeed Motorsport developed our exhaust system with direct Solidworks flow analysis in order to maximize the flow characteristics and performance qualities. The Fabspeed X Style pipe was designed to significantly outflow the $5000 factory optional race exhaust system. See video below for detailed analysis animations. Exhaust flow is smoothed out for a more pleasing, exotic sound and increased power to match.
Fits all McLaren 720S vehicles 2018+ Model Year
Simple direct replacement, "cat-back" bolt on system to replace the factory heavy and restrictive OEM muffler system
Street-legal and no altercation to emissions or warranty
Designed, engineered and fabricated in house at Fabspeed Motorsport
Produces a ripping high pitch exotic sports car sound
V-band flange construction for perfect fitment with the factory components
Fabricated from 3"/76mm high-quality TIG-welded T304L stainless steel
All Fabspeed performance products are backed by the Fabspeed Lifetime Limited Warranty
Recommended for the FabSpeed McLaren 720S Supersport X-Pipe Exhaust System