i'm new at this and i'm planning on boosting my d15b, is there any thing i should replace or upgrade to the internals or will it be ok stock. thanks for any replies.

 

ARP Headstuds should do you fine.

 

The ARP headstuds reduce the chance of head lift which is common using OEM bolts/studs whatever they are.

 

it really depends on how much boost you are planning to run, as said arp head studs are a must to prevent head lift, also a cometic head gasket will help to, you should be safe at 8-10lbs of boost if you get it tuned well.

 

As stupid as it sounds i saw a D15B run 18 psi and a 35 shot on stock internals , and didnt blow up . Not sure how the hell that works , but im sure with a real nice tune you will be fine at anything below say like 10 psi . Also just be sure to get some good gauges to watch over everything , id go with obviously boost . But also a good air/fuel to make sure you dont lean out , and an oil pressure to make sure everything is on par .

 

ive heard d15b's are prety good under boost, you should be fine up to 10 psi anyways just make sure u got the fuel to supply it and get it tuned!!