upper ic pipe

[boost_junky2000]

I was looking into getting the rnrracing fmic kit and they have an option for a 3 inch upper ic pipe. Anyone using this size pipe. Is it worth it?

 

[stanfosd]

I dont think I would go with that big of an uicp. I would imagine something that large would significantly slow your spool time as your turbo will have to pressurize all of that extra pipe before it can pressurize the manifold and the cylinders.