are there any mods like the pair mod valve that anyone knows of. im also looking for a company that makes after market air box's or anything thats a good bang for the buck

i have a usb power comander race bmc 520 and a hass eliminator with a custom mid pipe and a scoripon shortie and i was wondering if any one had any good mods that make a difference.

any info is good info thanks

 

If you are looking for more hp then check out erion racing. buy one of their race engines. I sure they probably pump like 170 to the wheels. If you need more hp than that then you riding in a straight line too long.

 

My bad. Their formula extreme engine is 180 hp.