i think of the a lower manifold that Bullet Supercharger offer
and install Kenne Bell supercharger 2.8LC for it ! what do you think guys !!

any increase in hp ? maybe 600+ in safe boost
but right know i want to use the trd in its maximum potential so i can get bored from it
and then installing the Kenne Bell supercharger
Well... you'll definitely have to build to the block for anything over 450 crank HP on the 2uz-fe in stock form.
Might as well go all out on building up the block too.
Stroker kits are available.
Upgraded Titanium rods, Billet JE Pistons, Thermal barrier coatings, upgraded valves, drive-train springs,etc
Lots of stuff you can do. Nobody is going to know whats inside a motor when everything is connected/bolted down, covered up.
For the: TRD supercharger... How far do you wanna push it?
I know of lots of many upgrades you can do.
And who to send it to in the U.S.
TRD supercharger unit Upgrades:
1.) Port & Polish the M90 Unit.
Brian Hartlage: Posi Performance does great work. Send it to him for the Porting/Polishing Portion. Great pricing.
I wouldn't trust any supercharger port & polish with Stegmeier.
I've read many bad things. Their outlet portings are too aggressive for one thing.
People experience losing boost.
2.) Strip off the OEM coating on the rotors. Put a thermal barrier coating on the rotors as well as the M90 housing.
You get tighter tolerances increasing boost this way instead of getting the 5.9 Pulley for upping the boost.
Making the M90 supercharger spin faster puts it out of its efficiency.
And not only that... it increases the Outlet temperature significantly.
You can go with:
Supercharger Rotors || Coating Service || Orioncoat.com ---would require a Air/Oil Separator ( Catch-Can ) for this coating. And elimination of the auxiliary injectors
or...
The High Speed Lab, Roots-type Supercharger Rebuild Services for All Eaton Superchargers
3.) Thermal barrier coat the Entire Supercharger Unit after a Porting and polishing so the aluminum casting doesn't absorb & hold nearly as much heat.
For The Fuel Delivery System:
1.) Do away with the 9th or 9th & 10th injectors setup. Its a band-aide setup. You can add ignition timing instead of having to take out 8-12 degrees.
Go with 8 primary injectors:
Fuel Injectors and Performance Injectors at FiveOMotorsport can help you there.
Direct fit Denso injectors: Denso fitting only. I believe there is a 430cc and 450cc to choose from.
2.) Fuel Pump: Get a Walbro 255L and install it immediately.
3.) Fuel rail & fuel lines: Do away with the stock fuel regulator. Weld on an aluminum -6AN Earls' fitting on the passenger side fuel rail.
The Fuel rail threads are: 12mm x 1.25: Earls' Plumbing offers these. -6AN size.
You can then regulate fuel pressure with an aftermarket fuel regulator to aide in better & easier tuning.
Upgrade all the fuel lines from the tank and return lines to at least -6AN. Getting ready for the Kenne Bell supercharger too.
Upgrade the cross over fuel lines and return line on the supercharger.
Any Fuel Dampener can then be put on the return line doing away with the stock Dampener.
Supercharger Snout/Bearings/Gears:
Coat All the OEM supercharger bearings & gear teeth: REM Super-Polish them:
MICROBLUE® | Superior Friction Reducing Technology coat them.
This will do away with significant heat build-up:
Reducing Friction and Heat - Smoother is Better | Low Friction Surface Finishing| High Efficiency Bearings. The bearings are spinning at around 10,000 -12,000 rpm's under WOT. This is why I do not suggest going with the 5.9 Pulley to Overdrive the supercharger unit. The supercharger gets out of its effeciency range.
I'd show ya Magnuson Supercharger's M90: Heat/Efficiency Chart but they changed the website. Its gone.
Well. That should keep you busy for awhile.