Senior Member
i think mainly looks and maybe a little bit of sound. borla says they cool off the exhaust and some thing like make it sound better and more hp but i really dont know if that is true.
Senior Member
those are the borlas, i dont know if they actually do anything but they look COOL!! lol
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Jarrad
1990 IROC-Z L98 350 TPI
TH-700R4
G92- 9 Bolt Borg-Warner 3.27gears
Bright Red Hardtop/ Grey Interior
DAILY DRIVER: 1991 GREY S10 2.5L/5SPD -FOR SALE.