Tunes, gain HP once more air, thru upgrading to CAI, more pulley for us w/ a S/C, and more fuel.... Without that, a tune isn't going to gain that much HP... Factory tunes are never all out performance but well within parameters for a long life, not pushing it to the edge...so, yes, there is room for EC to make HP... I do like the rational comments about headers on turbo'd and S/C'd cars...it does make sense... We will be looking at a gear change and an exhaust upgrade on the coupe...we will leave the roadster alone for now...