how have people achieved it
spec list will be best to help explain lol
yeh def .. get good air intake and exhaust
big intercooler and a remap shouldent be far off 300
intercooler is more imortant than standalone managment if you want to get over 300bhp. Just have a look on courtenays,regals etc websites and they tell you what you need to achieve 300bhp etc.
AOC top 15 car at PVS 2009 & 2010313.7bhp/343Ibft
up to 300 is pretty easy to get from the z20leh so ive read plenty of info about so have a search
You should speak to Michelob, iirc he hasn't spent a fortune on his VXR and it ran 293bhp at a RR, and thats without a remap. lol. I cant remember what he has done mod wise though. ill point him in direction of this thread.
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all u need is 3" turbo back
cdti? well ur decision but wud help
people please stop thinking this is a standard z20leh in a astra
its going in a nova
its going to have
3' exhaust system not cats
stand alone management (self mappable)
custom boost piping of some sort
enclosed air filter
custom 3' tophat wth v6 throttle body
and a f28 gearbox
better with sports cat on LEH