STI Hatch Rumble

[impreza_sti_08]

Any pointers as to the best exhaust to unlock the scooby rumble on the hatchback STI.

Cheers 

[Jay762]

unequal headers and replace the standard exhaust middle section with straight through pipework - had the prodrive backbox on mine which had a non obtrusive sound but you could replace the standard backbox as well if you need more volume