Join Date: Dec 2008
Thanked 112 Times in 85 Posts
Your TS chip already does what the 18K mod does and more. The 18K mod is just an ICP fooler to raise high oil pressure to the injectors. The TS chip already has that set in the programming to raise ICP pressure.
I ran a homemade version of the 18K mod before I ever got a chip. Saw pretty much the same mileage, a bit more power over stock, and more black smoke. That's about it. The 18K mod was fun to play with, but a chip does a whole lot more.