Are X-pipes really worth it???
05-05-2010, 08:43 AM
#13
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just fyi, you might want to step up to a lvl 7 tranny if you plan to add a tvs on top. otherwise it sounds like you've got a good plan.
as far as the x-pipe goes, it helps add power by equalizing the backpressure between the two exhaust manifolds. on top of that, it makes you exhaust flow better in general and sound better.
as far as the x-pipe goes, it helps add power by equalizing the backpressure between the two exhaust manifolds. on top of that, it makes you exhaust flow better in general and sound better.
05-05-2010, 10:50 AM
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NASCAR has been using X-pipes since 1991 and they found that the closer they were to the engine the more HP they made. On a 750 HP engine they would make 8-10 more horses however when they were added just before they exited on the side, the HP gain was less than 1. On a truck, if you add an X pipe after the cats you get a mellow sound and little hp. The 2011 Corvette has an X pipe option on the ZR1 and Z06 after the cats but are not advertising any HP gains as I recall.
05-05-2010, 05:32 PM
#19
An equalizer pipe, be it x- or h-, does just that: equalizes the pressures/volumes of exhaust gases passing through the pipes. The closer to the collectors we go, the hotter the gases are and the better flowing they are, hence why an equalizer pipe is more effective here than farther away from the collectors.
05-05-2010, 05:43 PM
#20
My thinking about X pipes is they introduce extra bends into the exhaust system. I would rather have a properly tuned Y pipe setup than an X or H. I'm running dual 3" into a single 4" Y then into a Hooker Maxflow muffler and it is very mellow for most driving and at WOT it screams like a NASCAR.