My Orion Mk1 (1985) is currently getting an engine swap from 1.3 to Zetec 1.8. One of the parts that I'm still needing is an exhaust of an Escort Mk4 XR3i. I found a cheap exhaust for a normal 1.6 that also fits a 1.4. But is it the same as the XR3i exhaust? Thanks in advance