[wallbanger]

Besides why would headers cause more stress on the engine?....i'm no mechanic(obviously)but all the headers are doing are allowing combusted gases to exit the chamber more efficiently thereby allowing the piston head to rise up easier and therefor putting less tension on the piston and less passive resistance on the driveshaft...right? The piston goes thru 2 phases.. the first phase is when the piston goes down and the gas/air mixture is introduced , then the piston goes up , compresses the gases and they are ignited...this is the phase that causes stress on the piston and the headers have no effect on this phase whatsoever... is my logic right?

Seems to me the headers are causing the pistons to work less

o well i've said enough... i'm putting my faith in belanger/jorgensen/partsrack