The si has 160 hp at the fly wheel, and about 140 to the wheels.
6 to 7 HP would be a reasonable assumption. Not all bolt-ons are going to have a positive effect thru 100% of the powerband. The only way to really know how your engine responds to any mod is to dyno tune it and the before and after results will be conclusive evidence.always revin said:I know it might be LAME ,BUT HERE IT GOES mods i have aem cold intake,advanced tim.unorthodox pulleys full set (3)Dc header 4-2-1 well how much do u think i gained with this set up?I was thinking like 6 to 7 hp thanks for the comments.