GT4RS Clubsport Header and Mega Crack Pipe Exhaust and 93mm Intake Package

Get the best sounding, most powerful exhaust for your GT4RS Clubsport, paired with our 93mm intake so it can breathe as hard as it screams. No valves, no muffler, no compromises. You want it LOUD, this is LOUD!!

The GT4RS shares its engine architecture with the 991.2 GT3, and the restriction at the 82mm throttle body is no different. Our GT4RS-specific Big Mouth center plenum and 93mm throttle body open up the intake side. On the exhaust side, our tuned-length 321 stainless Clubsport headers feed straight into the Mega Crack Pipe, which deletes the valves and muffler entirely, with 3D-printed 347 stainless internals that keep the pathways short while merging the waveforms of both banks.

The headers and the Mega Crack Pipe are designed together and work hand in glove, just like our headers and V11 muffler, making the same power as the header and V11 system with the weight and restriction of a muffler taken out. With intake and exhaust together, the full package is worth nearly 40 whp and 40 lb-ft over a stock GT4RS. The car is an absolute monster in a straight line.

Package includes:

• Big Mouth GT4RS-specific center plenum
• 93mm throttle body
• GT4RS airbox adapter and adapter harness
• Dundon GT4RS Clubsport tuned-length 321 stainless headers
• Mega Crack Pipe with 3D-printed 347 stainless internals
• Your choice of tips: Dundon polished 935-style or Megaphone-style tips in 3D-printed 316 stainless
• All hardware

Race use only.