camo86T

A query from a forum newbie/mechanical dunce ... I have an early FG ute, manual, was tuned about 2.5yrs ago with x-force 4" dump, 5" cat into twin 2.5", capa flash, new injectors (can't remember size) and growler intake... that's about it I think. made 345rwkw (on a hub dyno), went back 6 months later for a tweak, made 375rwkw and 920nm... on hub dyno again, guessing with traction issues taken out that equates to about 330-350 on a roller dyno...? Cos I'm a tightarse, I left the cooler as stock. Obviously in summer power drops like a turd, especially when its humid... winter mornings it goes like stink. Here's the question; if I throw on one of those cheapo ebay cooler - 460x430x85mm max thickness (stepped) and don't re-tune, whats the worst that could happen??