Shorties are almost worthless on a mod motor, so if you are going to get headers go with longtubes. I felt a decent gain with them on my N/A '00 GT. They are not smog legal, though. One other thing to think about is ground clearance - my stang is lowered a little less than 2" up front and about 1.5" out back and I only have about 3" clearance under the longtubes.
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Strike down the unroadworthy!
2000 GT Atl. Blue: '03 Cobra motor - 465rwhp/473rwtq, T-56 6-speed, full MM TA/PH & tubular K-member suspension, Saleen body, 17" Torq-Thrust II's, M/T ET Street radials, and lots more
'94 Rio Red Cobra: All the bolt-ons, 3.73s
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