ok im looking to get a programer for a 98 z28 and ive found that everybody makes the programers for 99-00 but nobody makes one for a 98 what is the difference between the years

 

Ask Hypertech, they make them.

 

http://www.hptuners.com/products/vcmsuite_vehicles.php

10X better than Hypertech, if you know how to use it.

 

programmers are paperweights... im sure everyone will agree. I heard good things about hptuners tho.. and you cant go wrong with a dynotune.

 

To program the 93 car the MEMCAL chip has to be removed and re-burned, or you can buy a chip from Jet. For 94 & up you can reprogram the computer from the diagnostic port. Read the sticky in the LT1 section regarding differences between different year 4th gen cars.

 

Hey you took my saying! [8D]

But Spartan is right, the handheld tuners are worthless. I suggest getting the car professionally dyno tunes, most people do not possess the knowledge or tools to make successful tune-ups with HPtuners. You could also go for a PCMforLess.com tune which won't quite be as good as a dyno tune, but it'll be much better than the Hypertech or other handheld tune.

 

http://www.lmperformance.com/c/10/1.html

 

lol 95, a good bit of the info i have has probably come from you.