Which has the best tune to get the most performance out of my 01 5.3?



Thanks

 

It's all personal preference, just like asking which is better HPT or EFI Live. You are just going to get everyone's personal opinion or experience. I would suggest e-mail both sponsors about your vehicle and see who responds to you faster or with better information.

 

who evers cheepest..haha..i prefer a custom dyno tune..thats just me though.

 

Both are good, trusted and sponsors. Call each of them and you decide!