I pulled off the Jardine 2 into 1 and am replacing with an Akrapovic full system.
I was thinking of buying a Tsukigi fill titanium system, but Xtreme Discount Cycles had exhaust blowout special, so I got the Akrapovic full system with carbon cans cheaper than the Tsukigi.
And I must say the fit and finish on the Akrapovic is a work of art. No wonder they charge so much.
The CNC milled aluminum inserts for the exhaust ports match the D-shape of the SP2's and guide the gas into the head pipe. Nice attention to detail for gas flow.
And the welds on that real thin wall stainless tubing is beautiful.
The whole system (pipes, fasteners, springs, and both carbon cans) only weighs 14 lbs.