Had a question about upgrading a throttle body on a 2003 civic with a d17a2. Cannot seem to find throttle bodies made for this application was curious to see if anyone knew of any company that made them or of possible swaps from other civics.

 

There's really no point to upgrading just the throttle body. Its not going to provide any performance gains.

 

Throttle body and intake manifold sorry, I've heard of the d16y8 manifold swap but I was trying to find if anyone knew of any manifolds actually for a d17 that have come on the market

 

There was an option or two, but I haven't seen them available for years.