jk. For $1300 you should be able to sling for 1.) used downpipes $250-300 2.) used test pipes for $200 and dont get the crappy 2.4" ID kind make sure its the 2.5" pipes 3.) larger intercoolers $500. Which gives you another $300 to play with, take that to the casino and place it all on one hand of roulette. Bet on black and double it to $600 walk out and buy a set of larger injectors for $600. The next logical step in my eyes then would be a dual pop intake set up after the larger injectors. Thats how I would do if if I had a stage 3 Z.