Originally Posted by SlowGreyGT
Does the 2.3 need machining on the Z too? Did you not do full cooling mods? (HX, tank etc)
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Yeah, we actually went above and beyond on that one. Built a 1+ gallon blower expansion reservoir, upgraded Katech HX. The factory pump on a ZR1 is boss, it moves more water then my upgraded pump on my V did.
No with the Z's you just order the LPE snout, with a quick change upper pulley