Looking for some recommendations on an economy tuner for my '03 GMC 5.3 Vortec.
I drive 99% in the city and I drive like a grandma (barely ever over 2k rpm). I come from a sports car background so I'm used to systems like Mega Squirt, Power FC, AEM EMS and the likes.
Gains I don't really care about since this is my daily driver and I have a twin turbo rx7 sitting beside it in the garage for when I want power, I just want some efficiency out of it. Budget I'm not too worried about, as long as it's worth it and would eventually pay itself off