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maybe, but in the past iv said the same thing when people have said 'do i need an fmic with my k03s?' or 'my car feels **** hot in the winter but in the summer its just ****' and they refuse to accept it
but if most people fit the k03s to get more power out of the car...then shouldn't you be willing to do everything? the bigger exhaust de restricts the flow from the turbo/manifold/head, if you just have a cat back then the original downpipe is flowing at the same rate so you haven't really done anything. everyone knows what an intercooler does....cold air equals more power, both not 100% essential but worth doing if your hunting for power
when turboboy mentioned his findings and i said pub figures i referred to the bhp claims and the speed claims because things like that vary between application as we all know. using 1/4mile as an example for top speed majority of k03s owners have barely broken 100mph in early 14s when yet iv hit 93mph in 15.1s
pub figures though imo
The big difference is that the ko3s will hold power a bit longer. Peak power on my k03s set up is at 5985rmp according to my last RR.
k03 claims of over 220bhp seem to be a huge spike which only holds for around 1000rpm followed by quick tail off in power.
On the road the difference can be felt quite considerably IMO
5985rpm!!my K03s is making peak power at 4800ropm. that's quite a difference!!