Originally Posted by ChaseZ

-Fuel pump which I'd allowed for because I didn't want to pull mine from the tank $115 (aermotive 340 CJ Motorsports).
-SC seal $35
-proper tune, strongly recommend Ecutek + Specialty Z

And yeah every Z even stock should have an oil cooler for sure if it doesn't already. I put mine on when the car was practically brand new and nothing more than exhaust on it.