upgrading intake and exhaust!

[Supra2NR]

About the aftermarket intake manifold it is quite expensive to get that if you can find it, and if you do it about 600 bucks not unless you make one for yourself
Pretty expensive and don't waste your time with the ct26 turbo they tend to break with higher boost levels
Get urself something with at least a 60 trim
Or go 70 trim for bigger power
If you want a ball bearing turbo I suggest looking at the garett gt35r turbo that's should be enuff for your needs for now
It is a bit pricey but it'll be worthit
You need to get an aftermarket exhaust manifold too, top mount with a t3/t4 flange
You need a wastegate too at least 40mm
And doing all your pipiing you might wanna start looking for aftermarket bov to compliment your intake piping
I suggest getting a front mount intercooler too,
And yes the 4 inch is a little overkill
But it makes me wonder how were you planning to route that exhaust since there's barely any space underneath the car