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Stage Two Voltage Booster


  • OEM Design
  • Plug and play into stock wiring
  • See voltage gains up to 14.8v+

Your alternator is an essential part of your vehicle. Without it, you’re dead in the water after your battery drains. So many foreign and domestic vehicles are electronically limited on output from their alternators and as you add more and more aftermarket equipment to your vehicle, you want the most possible output available. The Voltage Boost Mods Stage One voltage booster helps eliminate your ECU limited voltage.

So what exactly does this do and why should I get it? Let’s say you run a large audio system out of your car and you upgraded to a 300a Singer alternator. If your vehicle is factory limited to 13v, you theoretically are limited to about 3,900w of power available from that alternator at 100% efficiency. But, after installing a voltage booster, your alternator is charging at 14.8v, you gain the potential of 4,400w of power availability. That’s about 13% more power from just a simple plug and play upgrade!


  • OEM Design
  • Plug and play into stock wiring
  • See voltage gains up to 14.8v+

Vehicle Fit:

The Voltage Boost Mods Voltage Booster is designed to fit a huge range of Toyota, Lexus and Scion models with the square or oval alternator plug (see images below). You can verify by looking at the sticker on your stock alternator with the stock part number or just looking at the alternator plug on your stock alternator. We have tested quite a number of vehicles so far and will continue to update our list here. If you’re unsure if this will work for you, please contact us.

Alternator Plug Code Alternator Plug Code


Weight .25 oz
Dimensions 4 × 2.5 × 1 in
Alternator Plug Type

Oval, Square

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