This is a Personal Preference item, so there is no
right answer.
But there are pros and cons.
If it were my car - I think the Vortech kit is the way to go, reasons:
1. OEM look install
2. Self contained kit, no need for more oil lines, pumps, reservoirs etc.
3. Power delivery, will be like driving a Juiced up NA engine, think stock car on steroids.
4. Simple bolt on kit with mild power upgrade on stock fuel system.
5. Industry tuning and support, stateside support from Vortech
I think the 2 big things people dont realize about the turbo kit is how much heat it will put off and oiling it. Even with coating the header/manifold properly and maybe coating the turbo or using a blanket you are introducing a lot more heat into the engine bay.
You are now also going to be using the oil to cool down and lubricate an extra mechanical item in the engine bay. So you now have a lot more fittings and hoses that need to be checked periodically for leakage. You also have a new item (pump) that could fail. Oil if the lifeblood of your engine, something goes wrong there and you're in trouble. I would
not be running that kit without an oil cooler.
Downsides - you do not have the easy power potential of a good turbo setup. you won't have that surge of power like a turbo, and you do get some parasitic loss through the belt. To me those are worth the benefits though.
I am not hating on the turbo kit nor on AVO. I am sure the kit is of good quality and they have said to have done some extensive tests.
This is just my thoughts on the matter
-Tristan