Its a bypass which stops engine coolant (read: hot fluid) from flowing through the throttle body. The hot coolant (sounds like an oxymoron) flows through the TB to help the engine run better at cold and below freezing temps.
What he has done here is used a valve so he has a choise to bypass it or not.
There is much sceptism whether this mod actually has any gains. I think it might have some gain but probably very little. Maybe 1-5HP just a guess.
What he has done here is used a valve so he has a choise to bypass it or not.
There is much sceptism whether this mod actually has any gains. I think it might have some gain but probably very little. Maybe 1-5HP just a guess.