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has anybody tried unequal length headers?

58K views 36 replies 24 participants last post by  SergEK  
Hopefully it'll make it sound like a subaru but the boxer engine also contributes to that....sigh :sadbanana:

Damn just watched the video. That sounded BEAST. Thought it was a subaru until I heard the VTAK crossover.
actually the boxer engine has nothing to do with the sound, The extremly un-equal length exhaust manifold and turbo are what creates the distinct WRX/STi sound. One of the exhuast manifold tubes is like 2.5 ft long from one side and the other is not even 6 inches long before both combining at the up pipe leading to the turbo.

If you put equal length headers on a WRX/Sti and full turbo back exhaust it sounds the same as the average ricer boy honda with a fart can exhaust.

Once you put equal length headers on you loose ALL remanance of the WRX/Sti boxer sound.

http://www.youtube.com/watch?v=I21BW0CeJ90&feature=related

YouTube - STi Perrin Header

YouTube - Apexi GT Spec with Agency Power Equal Length Header Exhaust clip 04 Subaru WRX