Big Bore De-Catalyzed header pipes for Royal Enfield Twins 650

Pair of header pipes made of 45 mm 304 stainless steel tube with a brushed finish that can be polished if necessary in a metal chroming workshop. The original Royal Enfield pipes are small in diameter and have the catalyst welded inside which creates a major restriction. The brilliance in acceleration that is obtained is remarkable, especially if with the addition of the DNA air filter and snorkel and racing silencers such as our AEW

Direct exchange with the stock front pipes with maintenance of the lambda sensors. This means you can use all silencers that fit stock pipes including our AEW and stock silencers as well

Gaskets and instructions included.

Pipes are compatible with Euro 4 and 5 motorcycles

Note: this modification makes your motorcycle non-conform to the original and as such it is no longer strictly legal for use on the road