Hello, does anybody know if there is a difference between the 22r and the 22re exhaust manifold. I was told by a guy I was buying some parts from that I had a 22r exhaust manifold, but mine is a 22re. If there is a difference would the 22r be more restrictive? Thanks for any help.

 

Most 22R's have an O2 sensor on the exhaust manifold. Other than that, they are interchangeable. The bung for the sensor can be blocked off.