I am sure they do it for the same reason that anyone modfies anything. Because they can.

I personally would just but a liter bike, but I am not really into turbo bikes. They are good at going fast in a straight line, and I like a little bit of lean in my life.

I still have to give him credit for it. It's a cool sleeper.

 

this bike was on ebay a long time ago. i wonder what happen there, anyways very well done project there

 

wow really nice bike, maybe some pics of the turbo might help!

 

dude you know know anything about turbos? yesback pressure is bad for them but if you just have a 6 inch pipe coming off the turbo you will have turbo lag and have slow spool up. the only reason many people run a small pipe off them is to have more top end. if theres no pipe the turbo can regulate the exhaust gases better and will not have boost spikes. having pipe hooked up to ur exhaust (aftermarket), will result in more power through out the whole rpm range. the piping on f4i isnt to small. on my supra and both eclipse 3in exhaust straight back no cats just piping is plenty up to 700 hp. the slip-ons are aroung 2.5 inch. if you ran 2.5 from the turbo to your slip on that would be perfect plus you know how loud it would be open exhaust you wouldnt make 1000ft with out being pulled over.

oh yeah for the person that said you could buy a 1000 for cheaper than to turbo a f4i you can put together ur own kit for around 1100 thats including a garrett gt15 turbo and power commander. if you know what ur doing. plus a 1000 makes what 140 hp? f4i turbo will make over 150 to the wheels @ 9 psi and pump gas. race fuel around 175 or so.