Also ran 1/4 copper tubing around the block and exhaust manifolds. Plastic tubing comes with the gauge. Then before you run it into the cabin a 1/4 compression fitting is used to join the copper and plastic. Looks like this but obviously this is larger but you get the point.



-'96 SE MTX 3L -'98 SVT 1,173 of 6,535 -'05 Mazda 6s, loaded, g/f's ride -Need a 96-00 manual on CD? PM or email me