For 1500$ you can get:
- Option 1: PPK1, full warranty and limited extra power
- Option 2: JB4, downpipe and chargepipe: Maximum power, but hard to install
- Option 3: Cobb, and maybe FMIC. Cobb installs really easily, and with FMIC you can run stage 1 aggressive which gives really nice gains.
It all depends on how much extra power you want and how much you want to get your hands dirty
