Do you have to buy the karcepts throttle body adapter when you purchase the RBC intake manifold or is that just for after market throttle bodies? I drive an 04 dc5-s. I don't honestly know the stock TB size and there are two options on wotm.com to chose from. Thanks guys.

 

yeah you need the adapter and if your using the stock throttle body then get the smaller adapter i think its like a 68mm dont get the one made for the BDL 70mm