well the piggy back system i was actually looking at getting is from venom performance and is proven to give at least 10 hp. it is $400 so it better work but i think it is a little different from the ones on ebay

www.venom.com i think is what the website it and it is the venom 400 performance module.

95 contour SE 5 speed fun to drive but u already know that JVC head unit audiobahn 8002t Infinity kappa 6x8's Audiobahn Q's 12"s loud very loud