gets quite scary when you start adding up the prices to get power out of these. my personal cost is approx.:
RBC and INJEN imported from America was around £500 all in
DC sports manifold ( second hand but almost new ) £220
gaskets for rbc £30
3" custom exhaust £475
k100 and map £690
fitting costs around £40 from my mate
add in the map tweak ( new exhaust) and fuel costs to get to and from eurospec £300
so that's £2255 ish ive spent so far to achieve a figure just shy of 240bhp on eurospecs dyno
if you assume my car standard with 100k without all those parts would have probably achieved in the region of 205bhp ( was 212 with rbc and old exhaust and injen before k100 tune)
Then that's £2255 for a peak increase of 35bhp. not cheap by anyones standards, but at the same time I would do it all again because I love my car and driving it now is so much more fun than when it was standard.
Hand on heart if I was to go back to standard car now I would probably sell it.
once I add in my wheel refurb last year and new wheels and spoiler I just bought, along with eibach springs, camber bolts and arms, FRSU, Jun front bumper, carbon Lorraine rc5+ pads, braided lines, brake stopper, custom engine cover, carbon fibre rbc cover and so on and so on it gets quite expensive modding these cars and im not finished yet!!
I modify my cars because I enjoy it but it's not everyone's idea of fun throwing money at a 12 year old car.
My advice to you would be if your going to modify It for power be aware that bolting on a nice shiny exhaust or adding a spanking new induction kit will add maybe 5-7 hp....getting those mods tuned on k100 or kpro will add in the region of 15-20hp above your standard figure with MASSIVELY increased mid range punch of around 30/40hp. If your going to do it, do it once and do it right
