Quote:
Originally posted by jim_howard_pdx
Man you guys SHOULD LEARN before you speak out. An H pipe and an X pipe accomplish the same thing, they allow the on-fire order cylinders on one bank to scavange the off-fire cylinders on the opposite bank.
This IMPROVES LOW END TORQUE GUYS. ALOT OF IMPROVEMENT.
An H pipe will give most cars about 4-8 HP. An X pipe is more efficient and will give you 10-13 HP.
If you have one USE IT. By the way, the X pipe or H pipe will also make your car 4-8 db QUIETER. By allowing the off-fire cylinders to equalize into the second exhaust pipe, it reduces exhaust pulsations that generate the "beating" you hear with non-equalized exhaust systems.
Now bolt up that X flow system and ENJOY. IT IS FREE HORSEPOWER WITH NO NEGATIVE CONSEQUENCES.
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If you are telling me a stock car is louder than a car with an O/R h-pipe or x-pipe, then you must be insane! (Please tell me I am misundertanding you).
[TwiLighTBluEGT] I don't know how you would lose power download with the h-pipe...only thing I can thing of is maybe the loss of backpressure, but unless something is wierd with your car, I don't see that being the case.
H-pipe provides a increase in overall performance, but gives power most noticably down low. X-pipe increases overall performance, but gives power most noticably up high.
Both of them make your cars MUCH louder (Only can verify this on V8 engines from 1987-2002). After you do your emissions, throw it on with an exhaust, and if you don't like it you can always go back to stock
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Thanks,
DoranW