There is a Supercharger available for the V6 3.0 ltr: 03-09 V6 Mazda 6 Magnuson MP90 Supercharged Kit NPG Racing
This kit makes up to 450 HP. Your transmission will not be able to handle this (pulley upgrade 12 psi). The pulley upgrade to 5-7 psi is rated @ 375 HP. The 6 speed automatic Aisin Warner tranny is rated to 325 ft lbs torque. Expect some tranny upgrades like: TransGo | AW-TF81SC,*AWF21: SK AWF21 for the 6 speed Aisin Warner. This is a valve body kit that takes 7 hours to install (RE & RE valve body is 5.5 hours). Maybe something else should be done as well, talk to your local tranny shop. An external tranny cooler is mandatory as well as synthetic fluid.
With the standard transmission an upgrade clutch is obvious.
To add to the $4,300 price is a taller hood, larger injectors, pulley upgrade, tranny cooler, oil cooler (all available from same site). This thing needs to be properly tuned, you can't just bolt it on (more $$$$$$). Please inquire about tuning before buying. I also feel a better spark may be required, from upgraded coils. An optimized throttle body or 3.7 ltr throttle body should be considered from Cordova.
Some other obvious upgrades are all new motor mounts from AWR: All Parts - Engine Mounts - Mazda6 - AWR Racing Store .
Also, to do this on a stock exhaust is a waste of time. Not sure how pre-cats would handle this. Headers and larger diameter exhaust is needed. Although, if you get the lowest scale model with no upgrades, it might work. I guess the question you have to ask is do you have to pass an emissions test. I would estimate this @ $10,000+ properly done.
I just want you to be aware of the reality & consequences. There are many things that most people don't realize with type of set-up. I have hit on most of the major ones, i'm sure there is more! What do you tell your insurance company?
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__________________ 2006 Mazda 6, 3.0-V6, 6 Speed ATX, 61000 km MODS:24mm Progess Rear Sway, 1.5" Drop Front, LED int lights, K&N SRI to CAI with engine baffle, Steeda 1/2 Spacer, Battery insulated, Solar Panel, Pre-Cat Back Custom Exhaust to 2.5"Magnaflow Main Cat, MazdaSpeed Cat Back, 2V Hi Voltage Ign Coils, Water Shield, HiD Low Beams, 2 15" Subs, Extra Grounds, External Tranny Cooler, Tinted Windows, 180 T-Stat, Lucas Engine Oil, B&G Tranny Oil, Cut Throttle Shaft, Chrome Strips
Last edited by UseYourNoggin; 01-23-2012 at 04:58 PM.