Kline Innovation Audi RS5 4.2 V8 Valvetronic cat-back Porsche-991-1-991-2-GT3-2013 41mm primaries

41mm primaries

and replacing them for either de-cat pipes

25nm decat

while enhancing exhaust sound

+  Added performance without a check engine light

Kline Innovation Audi RS5 4.2 V8 Valvetronic cat-back Porsche-991-1-991-2-GT3-2013 41mm primariesKLINE INNOVATION Replacement of the stock 600cpsi catalysts, with either high flow HJS cores, or de cat pipes, opens up the sound significantly, as well as drastically improving turbo spool for increased power, and reduced spool time. This coupled with the twin 70mm dual oversized down pipes, and 89mm oversized center section, as well as flow optimized pipe free of compressions, allows the engine to reach its full potential. An additional laser cut