Quote:
Originally Posted by Tadpole
Muffler shop/custom H-pipe, 18" resonators, top speed axlebacks.....
I guess I need to post a video to you non believers on custom exhausts.
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Fixed that for OP, Probably cheaper to go this ^ route.
X-pipes are generally raspier and louder than H and have been shown to provide slightly more power than their counterparts. You are likely to see most of the power gains higher in the rpm band with an X-pipe.
An H-pipe is better at balancing sound and produces a more consistent, classic muscle car growl. It does less than an X-pipe in the way of balancing exhaust gasses but still flows quite well. H-pipes maintain the back-pressure necessary for torque gains earlier in the rpm band, as opposed to the top-end power seen from an X-pipe.