[6505Stangs]

I say if you did the intake do the exhaust to get the full effect of the intake it breathes in better but not out then whats the point ya know what I mean. Gears are good bang for the buck but if you do the cold air and not the exhaust the you only did half the job. Just like when you do the gears make sure yours trans can handle the gear change whether it's a new clutch converter or shift kit what ever the case may be.