no performance difference between H & X pipes

[dutch]

I'm just quoting a artical I found in Modified Mustangs from Nov '05 by Scott Hoag (founder of Mustang Racing Technologies and former team leader for the Bullitt and Mach1 mustang development at Ford)

"One myth prevalent in the industry is that X-pipes flow better then H-pipes... This statement is just not true! In case you're wondering, there is an entire fluid dynamics lesson involved to support this position! Over the years, we've tested nearly every combination of X and H pipe configurations and have found that tube-diameter, catalyst selection and bend shape all contribute to performance. As long as the system is designed with a crossover between the left and right hand exhaust tube, performance will be very similar regardless of X or H configuration."

discuss. :thumbsup:

 

[OnyxCobra]

Well at first it says its an untrue statement and then it says performance will be very similar, which means to me that one is better. I think people end up basing too much decision on x vs h pipe, it's not something you're going to swap and then notice a gain at the track, but one might be good for a few HP over the other.

 

[dutch]

I think sound should be the thing to consider when buying a mid-pipe. I just ordered the Summit (BBK?) O/R H because I think it sounds a lot better on a pushrod.. X pipes sound nice on terminators though

 

[BlkoutGT]

also mufflers are a big part... usually h pipes for chambered mufflers, and x for straight through/resonators

 

[ARdoller]

i bought an H because it was cheaper. i wanted one with hangers because i had problems with my exhaust hanging too low without hangers, and the H was cheaper to buy, to get one with hangers, since most H's come with them, and most X's dont.

 

[Paul]

H vs X, and even high-flow catted vs offroad doesn't make much difference in most applications.

I've seen back-to-back dyno runs where a HCI 302 made the same horsepower and LESS torque with an offroad h-pipe.