The turbo in the kit is prety small.
I would like you to get a turbo that has Turbine wheel diameter of @ least these measurements 61.91 /69.28 both in MM.


The one I picked out for snowman would be a better choice.
http://www.godspeedproject.com/shop/index.php?main_page=product_info&cPath=10&products_id=805

On Ebay, IIRC, he got it for about $310.00?
http://www.ebay.com/itm/gt35-t4-turbo-ch...d58c834&vxp=mtr
Most of the T3 turbos on Ebay are too small for our 6 cylinder engines, you need to look harder to find a better sized turbo for our applications.
Here is a T4 turbo w/same specs for less: US $266.35
I actually like this one better for your 230 engine. It has a devided exhaust entry, if the pic is correct. The compressor cover looks nicer also, more sturdy looking IMO. http://www.ebay.com/itm/GT35-GT-35-T4-A-...f3e57cb&vxp=mtr

The rest of the stuff in the link to the kit looks OK small intercooler., but it is not one of the better products to use.

This kit appears to be better,,, http://www.ebay.com/itm/Universal-GT35-T...6d58d5e&vxp=mtr

BUT, the turbos turbine wheel is too small.
You do not need 3" intercooler pipeing, but if you have the room to use it.

How much power do you want to make?

MBHD

12 port SDS EFI