Motordyne ... I challenge you to make a ....

fairladyZ34 · 05-30-2011, 09:45 PM

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

wstar · 05-31-2011, 01:19 AM

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

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:

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.

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.

05-30-2011, 09:45 PM	#1 (permalink)
fairladyZ34 A True Z Fanatic Join Date: Aug 2009 Location: Central NJ Posts: 1,577 Drives: 08 G37S Black M6 Rep Power: 20	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 __________________ From Z to G to BMW and back to a G! Nismo for life

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