basically your getting cool bov noises and longevity of the turbo or cool surge noise and less turbo life.you can go either way no big deal.i ran a hks sequential vented to air no driveability issues.
fitment was perfect.pretty impressive for a small work force.im waiting for the factory wing thats why asked.radio bezel nice too .want him to make shifter bezel and seat belt release panel too.had to wrap those.
the 99 camshaft sensor will fit just barley.if you want heater hoses you have to flip the sensor and weld a new mount for sensor.also recommend button head bolts for the cover.i have it on my 4g63 swap.
could use the crankshaft sensor kiggly kit if your ecm can control it.could make a tone ring and mount for camshaft sensor for front of cam gear.like the prp kit for the rb engine
the cas will definitely hit unless you cut the firewall.i would of used a 2g head .the 2g sensor will fit,and the 2g head allows the use of evo intake manifold with modifying for fuel injectors.also cas is harder to find and not the best.
also check the exhaust side of turbo for oil leaking in from turbo.can also pressure test the coolant system, pull spark plugs, and see if any traces of coolant.and when the smoke was pouring out was it running rough or normal?
you may think its expensive but the great thing is they still sell them.also if we dont support mks,dads,etc we will regret it when they are gone.its harder and harder to find parts.thank you guys for still doing it.