Sorry to be a pain what size ducting and trumpets do i need for my Viper on 172 ff mk2 ph 2?
dale172 172 Cup 2003 Dec 5, 2006 #1 Sorry to be a pain what size ducting and trumpets do i need for my Viper on 172 ff mk2 ph 2?
Middo Chocolate Bar™ Dec 5, 2006 #2 think the end of the viper is 70mm. cant remember properly though for sure.