Where do I find a certain silicone coupler?

[AlaskaBlueV2.0]

I am looking for a silicone coupler that fits our egg shaped throttle body. It will need to fit that, then a 2.5 or 3" tube on the other end. Do these even exist?

I double checked beforehand to make sure the e30 intake I am using was the same as the e36's throttle body.