05-31-2011, 01:19 AM
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#1 (permalink)
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A True Z Fanatic
Join Date: Mar 2009
Location: Houston, TX
Posts: 4,024
Drives: too slow
Rep Power: 3595
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Quote:
Originally Posted by fairladyZ34
For no hiss it would have to be true dual all the way back, ive been thinking about maybe going custom exhaust to get a nice deep aggressive non hiss exhaust
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I was looking around for a good explanation of X/H-crossovers on the net, and this little paragraph from a jegs.com catalog page is a pretty decent summary:
Quote:
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X-pipe and H-pipes synchronize the balance of the exhaust pulses from each bank of cylinders based on firing order which increases velocity and scavenging from each cylinder. Most people agree that X-pipes are better at improving performance than H-pipes, especially at the top end. However, H-pipes tend to have a deeper sound than x-pipe equipped vehicles and generally build power down low. These are general claims and your engine and exhaust combination could have different results.
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Who knows what Motordyne will end up doing. Based on their past products, they're clearly pretty creative at airflow and resonance engineering stuff. But I wouldn't expect an isolated dual system to be the best for our cars, in terms of sound or performance.
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