What 1.4 is it...if it's the lower powered version then just a new thottle body will make a huge differenece.Does anybody know how to squeeze power from the 1.4 K-series enginewith out spending major money, and ive heard putting inlet from a 1.6 ZR on can increase power.... rumour or true?
Do you think it'd be worth it to make a custom intake manifold and fit individual throttle bodies from a CBR 1000? Because I reckon it'd not be very expensive barring the fabricationWhat Stu said is right.
Get a decent Air Filter and Exhaust system, both will come to £300-400 for 5-10bhp.
You're looking thousands of pounds to get more, my 1.4 ZR Rally car is 150BHP, and has had about £3000 spent on the Engine