I'm running a 98" ITR motor in my EK. Right now I have a BBK 70 mm TB on the stock manifold. I'm thinking of getting the AEBS intake manifold but it has a 65mm inlet. I was wondering if I need to get the inlet bored out, and how it would affect performance if I didn't get it bored out. Or should I jus get a 65 mm throttle body? I'm going all motor for my hatche, so far I got Mugen Head Gasket, DC Header, Magnaflow Cat. Apexi WS catback, Injen Intake, Walbro Fuel Pump, B&M Fuel regulator & filter, Apexi VAFCll, OBX fuel rail and a big *** throttle body. I still have to get cam gears and get the motor tuned, but I wanna get the IM first.

 

i have a 70mil, and had the manifold bored i would say its the way to go.