[Slow-V6]

And to pay somebody to change your shifts and speedo is just wrong. With HP tuners its a simple question. What gears do you have? What size tires do you have? Then hit enter and its calibrated.
Gears are great but your car still cant breathe. With my 98 Firebird I made 170rwhp and 200rwtq stock with a 3.73 rear. My car was a 5 speed. With Headers, full exhaust and a lid I made 190rwhp and 225rwtq. Thats about 800.00 in mods to gain 20hp.. There was only one choice in headers back then for the 3.8 so they were 400.00 alone. I was also running a flowmaster which is not the best perfomance muffler but the one that sounded the best on a V6.
Dont worry about loosing any mpg or anything with the gears. Installed 4.10s in my V6 and everyone said that it will suck for MPG and drivability but it was a blast to drive. I actually got better MPG with 4.10's then with the stock 3.23's. It made it easier for my car to get going which means I used less gas to get through 1st through 5th. I also gained some MPG with the exhaust system with no emissions. I lived in VA so there is no emissons down there. Overall I was getting 33-35mpg on the highway and 25-28 around town.