i have a throttle body and i am not sure what it came off of ? there is a number 1 on the throttle body and itz bigger then a stock d16z6 throttle body also the z6 has a number 4 on the back of it if any ones has any idea please let me know!!!!

 

it is hard to say what its from, but if it will fit your intake manifold and bolt on use it. a larger throttle body will give you more throttle response.

 

well i need to find out asap what itz off of b/c i need a gasket for it and i dont know which one to get.