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Originally Posted by 2Manystangs  It won't hurt the milage, but they add nothing to performance...get long tubes and free flow cats and high flow mufflers for a real gain. Obviously if you are in school you probably don't have $1200 to spend on the system, so just enjoy the car the way it is. | +1, Short tubes are like glorified manifolds. Long tubes help the exhaust scavenge better. A well designed exhaust system can actually increase power. The flow of exhaust from the previously fired cylinders actually pull the gases through the primaries like a vacuum. That is why longtubes and equal length are better than shorties.
__________________ 97 Cobra-03 Cobra t56 and alum DS, SPEC111 clutch, FRPP 4:10,T&J Performance Forged 4v(8.9:1), Manley rods, Novi 2000 w/ Fast Track A/A I/C, Barry Grant Fuel syst., BBK longtubes and H-pipe, MSD ignition, Detroit True Track, Magnaflows, 315 NT01's on 17 x 11's, KB BAS, SCT tune and about a million other things. 575 RWHP. Going into the shop this winter, looking for 650 RWHP. | 
? guys 
cuz if it does i'm ganna wait to get them bcuz i'll be drivin alot next for school
