We've found it's usually down to poor alignment at the manifolds, particularly with the TYGA chambers, that can be a bit fussy.

The [TYGA] pipes are all built on the same jig, so if your frame is straight, there is no reason why they should fit any worse than any other set of TYGA pipes... which usually fit right up without any problems.

Jha, HARC Pro, Ethos, DogFight, and everything else should fit just the same too. I've yet to see a set of pipes that didn't fit properly to a straight frame in 20 years!
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Andy.
NSR-WORLD.COM

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