Bodeye

Not really - Maybe a fraction of a BHP, but if you fart, you'll get it back It's the catalytic convertor that restricts the torque in mid range, but not too much power the noise valve is purely for noise level purposes

1 - The slip-on muffler does give a power increase (Can't speak for Micron who have gone bust, Scorpion, Laser or Racefit), see the link: R6 Technical Information - Akrapovic slip-on 2 - You won't get an e-marked (road legal) full system for the 08 R6. Due to the new Euro-3 emissions regulations, you must have a cat in the system... unless some-one has bodged on an e-marked muffler that fits. ...Not an issue if you are racing, but pointless for road use (in my opinion). 3 - Power commanders are not required for Akrapovic exhaust systems, they are all dyno-developed to run on standard fuelling (that's what you pay the extra money for)... Again, only really required for track use/further tuning. Otherwise, just a waste of £280 plus dyno time & filter. Standard fuelling power: Dyno (system) 4 - Exup valves are a thing of the past... most modern sportsbikes now come with a noise valve. These are commonly mistaken a exup valves, but do not actually effect the fuelling/ECU. If the cables come loose, they flag an FI light on the dash - this is just to let you know that something has come loose. The sole function of this valve is to half-close between 3500-5000 rpm in second gear to drop the decibel output. This is where all EU Spec. bikes are tested for noise before they are allowed to go on sale as a road legal bike.

The Akrapovic megaphone is not 'technically' road legal. but it does not have any 'not for road use' markings... and they're really cheap. They also have a DB killer to drop the noise level if you like. If you want the road legal version, see this link: R6 08 Road legal Akrapovic It is more expensive, but you get that magic e-mark... It is also available in full carbon fibre (which looks mint).