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I had a stock 2000 V6 with the 3.23 gears and I up graded the rear gears to 3.73 and added 18x9.5 rims. I purchased a hypertech programmer and tried adjust the speedo. but it doesn't have the option to choose 3.73 gears. I also tried the SLP speedo. processor and it did not work to adjust for the tire height. I even programmed with the hypertech and set the computer for my new tire size and that I had 3.23 gears even though I didn't, then used the SLP part to change the gear selsection to 3.73's and still did not work. Anyone know how I can solve this speedo. problem?
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HP Tuners from Texas Speed & Performance. It will correct your speedo, shift points, and also do ALOT more to free up some torque management to give you more torque.
I gained a good .1 sec off my 1/4 mile ET with just the tuning itself. Definately a must have.New Toy Red 94 Formula LT1
RT: .0006 60': 1.894 1/8 mile: 8.351 @ 84.89 1/4 mile: 12.974 @ 107.81
crashed Red 96 Camaro 3.8l: 14.91 @ 92.38
The ex wife's Black 98 Firebird 3.8l: 15.23 @ 88.12
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