




We built the lightest, LOUDEST, most powerful exhaust for your GT4 Clubsport. No valves, no muffler, no compromises. Not for the faint of heart or for tracks with sound restrictions. Ear plugs not included!
Dundon tuned-length 321 stainless steel Clubsport headers feed straight into the Mega Crack Pipe, which deletes the valves and muffler entirely. The Mega Crack Pipe uses 3D-printed 347 stainless internals to keep the pathways as short as possible while still merging the waveforms of both banks for the full flat six scream.
The headers and the Mega Crack Pipe are designed together and work hand in glove, just like our headers and V11 muffler. The combination makes the same power as the header and V11 system, with the weight and restriction of a muffler taken out.
Package includes:
Race use only.




















































