Hey guys, I have a 99 SS with mods in sig. I am getting it tuned in the next week by APE, and I was wondering if I should upgrade my injectors. It has 26.somethings stock, should I get some out of an 00 or later that are 28.something stock? I don't want to if I don't need to, and other than maybe an LS6 intake, thats it for engine mods for quite some time.

 

When the car is one the dyno they should be able to tell you what % duty cycle your injectors are running at WOT. If it's above 90% you'll probably want to upgrade.

 

Exactly as he said. With what you have, i doubt you'll need to upgrade.