Mine has an X pipe and gutted rear boxes both done before I bought it but it sounds glorious , think there's a tutorial on here for the boxes but it's like open heart surgery , scary to watch
Got Larini front sections removing the secondary Cats and also Larini X pipe on my GS. Sounds great. Got larini valved rear boxes on order, due in about 2 weeks.
Oh, you have the exact combination I'd really like to hear on yours! I have Larini secondary decats and H-pipe on my GS and really want to hear the X-pipe alternative. You're in Swindon, and I'm in Oxford... any chance of doing a comparison before your new rears go on, and then I'd be interested to hear the final result?