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Originally Posted by FPenvy
yea i'm happy with just TP's. i would do headers if they werent so much more money. my TP's were $275. LTH's are 1200
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Which is a lot of the reason that I'm kinda hesitant. I just read semtex's review and it's definitely positive. Here's his input on the dyno graphs
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As you can see, I lost peak power (the green line is my baseline, the red line is the new one from this morning). My peak dropped from 322.2whp to 316.8whp.
However, before anyone gets their undies in a knot, take a close look at the graph. I lost power only at the very top starting at around 7300rpm. I either matched or gained everywhere else; there were no losses anywhere else in the powerband. In fact, from 2800-4000rpm, then again from 4600-6700rpm, I gained both power and torque. Also, notice the unit scale of the graph -- even though the lines look pretty close together, it's kinda misleading because of how the graph moves up in such tight increments. In my opinion, this is a positive result. I gained power where it's actually usable. If it's at the expense of a few hp from 7300rpm up, fine with me. I hardly take it all the way to redline anyway, and even when I do it's just for a brief moment before I shift up to the next gear. Indeed, the dyno results confirm what I've been feeling through the seat of my pants (or "in the butt" as Sharif put it to me this morning, lol). I made a point of putting a good 140 miles on before doing the dyno because I wanted to make sure the ECU had a good chance to adapt.
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Is all that really worth $1200 and the potential fines... probably not as of now.
So I guess it's down to HFC, TP or ART Pipes. Hmmmm decisions decisions