[raymon6]

Can anyone help me out with the SC300 Throttle Body that I am trying to install in my IS300. I am trying to figure out which hose goes where and there are hose nipples that I have no clue what to do with them because I don't see them on the IS300 TB. If anyone can help me out with this that would be great.

SC300 Hose Diagram:

IS300 Hose Diagram:

SC300 Throttle Body: (I circled in red where I need help on)

 

[raymon6]

No one has a SC300 throttle body in their car?

 

[strumgol]

In my humble opinion, if it's not on the IS TB, you don't need it.

However I'm wondering why would you want to use an SC300 TB if it is almost the same as the stock IS TB? What is the diameter of that TB?

 

[raymon6]

the diameter is the same, but the SC300 doesn't have drive by wire.

 

[is300cb]

dont waste your time, eliminate DBW w/ stock parts

the diameter is the same, but the SC300 doesn't have drive by wire.