My sons friend just bought an Impreza. It a 2.5 and he would like me to put an aftermarket air intake and he wants a full new exhaust with header. Do they make an unequal length header for that car? And air intake.

 

Thanks

Dp

yeah they make all that and more. Plus a lot of parts will swap-over from the WRXes. You can look around for rims and maybe sway bars or other 'take-offs' as folks upgrade.

 

the intake may add some sound, it won't add power - the intake is already a CAI.

 

unequal length headers will come close to re-creating the sound of the turbo cars.

 

if you ever swap rims, try to get some lighter than stock. also, a lightweight crank pulley might be a good idea when it's time for the timing belt system service. If it's a 5sp - consider a lightweight flywheel when it's time for a clutch. ~4 lbs of rotating mass = 1 hp.