hey guys im doing a b18c1 build and am looking for opinions.

so far i have a b18c1 block bored to 81.5mm with usdm p73 pistons.
gsr head with type r valvetrain and type r cams.
going to use rmf header with test pipe.

im debating to just keep the stock intake manifold and bore it out to 64mm and clean it somehow and use a 62mm throttle body. and thinking about keeping the stock ls bpipe and axleback.

what i need opinions on is if i should switch out the manifold or not, and if i should get a bigger exhaust system. and also how much whp could i make? maybe aiming for at least 190

car will be tuned eventually when everything is done. plans are thats it gonna be mainly for daily and looking to gain a good amount of power too, and 3% of the time or less at the track.

thanks in advance for the feedback

 

so you pretty much building a type-r
just switch the manifold to type-r style
stock gsr manifold doesn't do any good compared to single runner itr style

you can probably run it on stock jdm itr ecu also

unless you want to sell me the valvetrain and cams I'm doing same thing but for emissions.

 

same here thats why im going type r build. dont have to deal much with switching out parts when it comes to smog. ca is a B***** with smog