Does anyone Know if there are any supercharger kits for the 91 v6 4 runner? i have bin searching but cant seem to find any.

No there isn't. But exhaust, intake, headers, removal of the cat., and so bigger injectors normally do a real good job.

I have a 2.5" system from the cat back with only a stainless steel supercat muffler. Its loud. i was considering removing the clutch fan n fitting electric thermo's. apparently you can gain up to 40% more torque at higher revs.