X pipe H pipe or side by side

Lelo Dart said
With a crossover the engine "sees" the pipe as bigger than what it really is. Now, if you dump it after the header or with a header muffler then of course this does not apply. X or H is good for a full exhaust system.

Lustle said
Why is it hard to believe? You keep saying you don't believe. And people keep posting proof, dyno tests, race results, magazine articles. So tell me why you don't believe.

RustyRatRod said
I remember talking to Doug Thorley hisself about this years ago. He said that although they do offer crossovers of different styles, that they did not make much of a real difference on the dyno. All I remember him saying they did was make the sound different.

I do know that without the crossover.......of any kind, that the exhaust note is more crisp and edgy. I kinda like it like that.

I guess it's like any other mod though. The best place to really find out about any power advantage is on the drag strip.

I did my H pipe because an X wouldn't fit my GVOD. I'd have an X in there is it fit. The X from all tests I've seen on full exahsust cars shows dyno benefit. The H may help some but as rusty aid helps with sound which is the primary reason I'm running one. To help tone down the exhaust.