06-17-2007, 04:04 PM
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Gas mileage?
hey guys i was wondering what kinda fuel mileage your 3.8s get-is it possible to get 30mpg+ in a 5 speed? does a performance intake and/or exhaust help? oh, and do they come with limited-slip differentials? Thanks!
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 2000 Trans-Am-lid, filter, LM, bellows, CAI, p&p TB, 160 tstat, Pacesetter ceramic LTs, TSP ORY, GM Performance 3.42s, B&M shift improver kit, ls6 intake, cold fusion wet 150,window switch/WOT switch, Grantelli 255 fuel pump, 255/16/50 MT Drs, SFCs, STB
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06-19-2007, 12:03 AM
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My V6 has a 16.8gallon tank. I CAN get 300 some odd miles on a single FULL Tank. but I normally don't get that.
intake and exhaust might help. depending on driving habits. and if you want a V6 with a Limited Slip Differential you gotta check the door codes for the Y87 code all Y87s come with a upgraded steering rack, Single in Dual Exit Exhaust, Limited Slip Diff. (most came with 3.42s) and a few odds and ends.
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 -= 99 Firebird =- Intake - FTRA, K&N FIPK Exhaust - Pacesetter Headers, Magnaflow Cat, TSP Rumbler full 3" exhaust
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