Looking at all test pipes, especially from torqen and tarmacsportz and other. The shape of the test pipes are similar, but only difference are name, price and materials...
Is it worth to choose name that is expensive than other is cheap?
Or is there difference between each test pipes (brand name)?
I wants to know what test pipes do you have and why did you choose it?
I know they are not legal but as long as you get y-pipe that have hfc or add hfc weld to other part of exhaust or decide that your Z is only for track, then it should be okay...?
Regards