My '94 T/A came with the 115 speedo and I'm wondering if I can change it to the new ones that register 150 mph on them. I'm sure I can do it but would I have to flash my ECM to recognize the speedo change?
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Hercules
2008 Sunburst Metallic HHR LT -
i have a 93 firebird that goes to 110 MPH im wondering the same thing -
Just get the 150mph cluster from the same year car. No PCM change required.Fred
381ci all-forged stroker - 10.8:1 - CNC LT4 heads/intake - CC solid roller - MoTeC engine management - 8 LS1 coils - 58mm TB - 78# injectors - 300-shot dry nitrous - TH400 - Gear Vendor O/D - Strange 12-bolt - 4.11's - AS&M headers - duals - Corbeau seat - AutoMeter gauges - roll bar - Spohn suspension - QA1 shocks - a few other odds 'n ends. 800HP/800lb-ft at the flywheel, on a 300-shot. 11.5 @ 117MPH straight motorComment
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at least your speedometers go above 8586 Camaro (350)
79 Blazer (FI 350)
98 Buick Riviera (S/C)
96 Grand Prix (Sp. Ed.)
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