Is there a super charger for a 2004 toyota tundra?

Supercharge that shit n i g g e r.

A Toyota designed supercharger is available at any Toyota parts dept., which will make LOTS of H/P.

You can also install an aftermarket computer chip, performance air filter, stainless header, and turbo-type muffler.

If you got the money:

TRD Supercharger - 350HP, 400Lb/Ft. About $3,500, or $5,000 installed at the dealer. If installed by a dealer, the warranty is not voided. I'd LOVE to add one to my '03, but alas, no $$$.
Also:
TRD headers, cat-back exhaust, Flex-a-Lite electric cooling fan

Look some things just need to go to the shop an be tuned up on a computor then what you got is what you get...that eng an tranny are fine if tuned up they are a matched pair don't cause your self problems