[sum_weirdo]

Just looking at the vaunted Xchargers over at ExplorerExpress and I had my eye on the XS5556L5/3.0 model (cheapest ). It's listed as California spec and I assume that means something bad but it doesn't distinguish. What kind of power gains are these supposed to make anyway? If I do spend a few grand for a supercharger I'd like to surpass the GTs power even if it's only by a little. Any input would be welcome.

[sum_weirdo]

Never mind I see it now, the CA models use the stock airbox.

[cmaurer1]

Could you use the 3.0 Xcharger on the 4.0 engine? And if you could would you see as good of gains?

[GrayPony]

What is a 3.0 Xcharger??? Do you mean the Xcharger with the 3.0 pulley?

[sum_weirdo]

I just copied the model off the site, I assume the 3.0 is the pulley size.

[burnrubber4.0]

yes its the pulley size... being the stock air box youll have a more restricted air flow

[Mr. Ugly]

Ca kit uses a GT air box. HiPo kit uses a CAI with K&N filter.

Get the HiPo kit and get the 2.8 pulley for more boost.

[mrjimmy]

The Calif spec ,I believe,has the enclosed airbox because of cali smog requirements. I imagine that doesnt give you as much HP as the other model.
I have the one with the 2.8 pulley and open air box. I can usually come out ahead when challening a GT. I have run in the high 13's afew times but mostly in the 14.2 range,but that is at 2500' and on hot days with a density altitude of 5400' . That does make a difference sad to say.

they should say "Results may Vary according to altitude and other conditions".