I heard the life span is longer if the water lines are hooked up. But, no you dont have to hook them up. If you have you TB bypassed you can you those lines from their, thats prob the easiest way to hook them up.
You don't have to, but it will add many miles between rebuilds. Also, you don't have to idle the car after running hard before shutting down. No turbo-timer needed if you have the coolant lines hooked up.
A forum community dedicated to all Hyundai models owners and enthusiasts. Come join the discussion about modifications, classifieds, troubleshooting, maintenance, reviews, and more for your favorite models!