Yeh ep82 and ep91 front pipes are the same in fact there the same shape all the way through the only difference is the hangers on the rear are different. It should be angled mate to fit a standard zorst, and were all only human and make mistakes but might be worth apologising to sacha as that looks to me like it's your zorst not the decat, but just make sure first by sourcing another system or front pipe to see if it fits.