The best power gains will come from a good set of long tube headers, off road x-pipe (or catted if daily driver= minus a few horsepower), and a good "flow through" cat back system. I have a catted UPR x-pipe with Magnaflow cat back and it flows/sounds awesome. It has a deep rumble at idle and a roar at WOT. I would also replace the stock air intake for a cold air asap to have good flow from intake to exhaust.
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1999 SVT Cobra Coupe
black on black
JLT Ram Air Intake
Cobra R Rims w/275-40Z17 Kumho Tires
UPR Catted X-Pipe
Magnaflow Catback Exhaust
Eibach lowering springs
Koni Sport adjustible shocks/struts
Steeda Tri-ax short throw shifter
Coiled Cobra Grille Emblem
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