Hi Luke
I have a set of tyga ss pipes and they are good. the welds are awsome.
I went down to a mates joint in ringwood (melbourne) and put the bike on the dyno. With a mod airbox and re-jet we got 63hp at the rear the engine was stock. For the price unless you can get good secondhand jha chamber cheap go for the tyga pipes well worth the money.
Regards K