Originally Posted by toastedoats
it is doable without swapping the whole transmission and engine for about $1200 in parts through www.zzperformance.com
however they are only selling the parts installed at there shop. Also, it is recommended to have some transmission work done to handle the new 70ish horsepower.
To add to this, it'* a low-boost kit, and you have to provide other parts to complete the deal. By the time you add all the costs (keeping in mind this kit is NOT FOR SALE and has been in development far too long), you could easily sell your SE and buy an SSEi for the same price. You'd have full boost capability, a trans designed to handle the power, and all the bells and whistles that come extra on the SSEi.
Toasty stated 70ish horsepower. This can't be quite right. There is only a 35hp difference between the L36 and L67, and my understanding is that the kit ZZP is trying to put together will operate under limited boost.
You need to buy:
M90 SuperchaZZP will soon release the most anticipated aftermarket product ever for the 3800 market.
L67 lower intake manifold
Other misc parts
Each year of car will need a slightly different kit, each make of car will need a slightly different kit. There will be multiple stages of the kits available. The stage 1 kit will work on a bone stock GT, include a 4.2" pulley, produce 5 pounds of boost and drop most GTs about .5-.7 seconds in the 1/4 mile.
A stock L67 runs 8 pounds of boost. And the trans will last longer. But ultimately:
ZZP will soon release the most anticipated aftermarket product ever for the 3800 market.
Note SOON. This kit is primarily for the guy who has alot of money to spend, and is 'hooked' on his esisting L36 car to the point he wouldn't trade it for an L67 powered car. There is a market for it, but from a practical sense, there are other options.
I'm not sure I'd consider installing it on a high-mileage trans without a good rebuild first, and that'* a couple grand more on top of it all.