Hi, I have an 04 GMC Sierra 5.3 Auto 4x4. It is stock tuning with a CAI and a Cat-Back exhaust. Recently its crossed my mind to set up some Bolt-ons.

This is what ive developed-

In no particular order...

1. Performance Tune
2. Gauges (Trans, Engine Oil?)
3. Trans Parts- i.e. Cooler, Shift Kit, Servo(s)
4. Headers

What order do you think is right?

I cant afford all these mods at once, ya know what i mean?

Thanks, Nick.

 

if you can swing it id go for trans parts and a tune for now, then get headers down the road. just make sure you go with a tuner who offers free re-tunes so when you add more things it wont cost you any more money to tune it again.