Hey i was looking on the net and found the jet power programmer. The price wasnt to bad about 316 and has different setting for using different gas octanes unlike the other ones that demand premeum. It also fixes speedometers for tire sizes and gear ratios and has built in scan tool. check it out at http://www.jetchip.com/pdf/charts/GM...20Features.pdf. anyway has anyone used this product or herd if it is anygood. thanks http://www.jetchip.com/products.asp?...;make=22#parts

 

I bought my Hypertech Power Programmer III for 299.00. I love it.

 

Would one of these cure the black exhaust tip and maybe help with a little better gas mileage? Will it work with a manual transmission?