Hi all. Im kind of new to the skyline game (well turbo ones anyways) I've had a r33 2.0 litre non turbo as a run about for sometime and now so I took the jump and got a GTR v-spec one. The GTR i've bought is pretty standard to be honest and i'm hoping to give it abit more power, hopfully up to about 400bhp. Its currently got a Nismo Cat-back exhuast system and 2x HKS mushroom filters but thats all at the moment, What would I need to do to get my baby up to the 400bhp? people have already said turn up the boost but is this going to effect the the stock engine/turbo's? The cars only done 49k miles so I'd imagine the engine is in good condition still (I hope). Any advice is appreciated.