Hello to all, I have an 06 saleen with just the pulley no supercharger. I have a 100 shot of juice. I wanted to get rid of the cats and wanted to know which pipe would give me more horse power X or H?
Thanks

 

H-pipe will sound better. X-pipe will give you a few more horses but not worth the sound quality in my opinion.

 

Won't the H-pipe make it deeper, and the X-pipe make it more raspier.

 

the x pipe provides more power than the H. The x pipe balances out the torque curve while the H pipe is more for sound dynamics. When the exhaust gases pass the opening in the X this creates a low pressure area thus improving scavenging it does however have a lower tone than the h-pipe. The 90* turn the exhaust gases make for the cross over in the H pipe are more designed for sound vs performance.