I have a 2001 748 i picked up last year. its getting a tear down and should be going back together here soon. The owner told me it was a full system. How do i make sure it is. I't just dosnt seem to be. I can get some pictures if that helps.
Check the diameter of it, stock was 45mm. Most full systems were standard 50mm. Plus, the mid pipe will be the same size from one end to the other....the stock system had the cat in it which increased the diameter half way up it. Send over some pictures and we'll be able to tell you.