McLaren 600LT XperTune Performance Software Tunes & Software Constructed from high quality T304L

Constructed from high quality T304L stainless steel for performance and durability

The Sport Cat alone requires the Fabspeed Downpipe for installation

Each and every Porsche 997GT3 2006 to 2019 GT3/ GT3RS stainless steel and Titanium OEM muffler's metal skin fractures due to an “oil can” effect

75HP and greatly improves throttle response

McLaren 600LT XperTune Performance Software Tunes & Software Constructed from high quality T304LAchieve maximum power gains (~80+ whp & 80 ft lbs) without sacrificing drivability or reliability. Maps are available for completely stock cars, or for cars equipped with Sport Cats, Catbypass Pipes, X Pipe Exhausts, upgraded turbos, and more. You wouldn't believe all the power that's waiting to be unlocked in your 600LT. We've had ample time with a 600LT on our in house Dynojet to unlock extra power on both stock vehicles and optimize performance