You need to make sure your frame is straight, a slight tweak will throw your pipe mounting out of wack. This is the first time I've ever heard of a Trinity pipe not fitting perfectly. These area's your talking about aren't even close on mine. The only problem I could see happening is maybe damage in shipment, possibly bending the pipes. Honestly though I would check your frame first then send them to Trinity and have them sit them back in their jig and see how they fit. It's possible something could of been out of wack somewhere but those pipes have to be built in a jig set-up so every pipe is near identical and if you have those problems and so would everyone else. This just isn't the case though.