Yah, I installed the same setup.. 2 flowmasters welded in.. it sounds a little better than stock.. no gain imo, but in 2 weeks I'll install a Bassani catted X, free up the exhaust, I cant touch the headers right now or I'll void the warrenty but I'll do that in a couple of years.. For you, you should do the headers, H or X or offroad pipe and flow tubes... It'll cost an arm and a leg but you'll love the gains and the sound.
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2003 Stang GT
Mach 1 Chin Spolier
Steeda Tri-AX Short Throw
MGW GT Shift Knob
MAC Cold Air Induction System
MGW Polished E Brake, A/C Knobs
UPR GT Fuel Door
Stainless Steel Inserts
March Pullies
Magnaflow X-Pipe w/ Highflow Cats
Flowmasters American Thunder
Magnaflow 3.5" Tips
DaSilva Subframe Connectors
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