ARCTICWHITE98Z28

iTrader: (1)

I have looked for a Diablo tuner for my 98 Z28 and it looks like they don't make one for that year. Is that true?

2001NBMZ28

It's true. If all you want is a handheld, Vinci/Crane just released one for the '98's.

pdanrichey

iTrader: (4)

IMO, the handheld tuners state they are for a specific year of the car...I think it's BS. It's the same engine, same ECU, etc. Summit was selling each tuner for a specific year, but another company was selling one for all years. I recently untuned my Hypertech because my car is running a little ghetto until further notice. I'm going to try and install it on my Dad's '04 Vette and we'll see if it works!

slow

iTrader: (7)

if you knew about the 1998's then you would know that the ecu is completely different than the 99-02, which is why it does not work.

The hardware is the same, but the software put on the 99-03 ecu's are different. 2004 goes to a 1mb flash, vs the 512K that the 99-03 ls1 ecu;s use so good luck with that

Ryan