EFI Mod Chip

[macmasters]

Do they really do anything? Polaris Sportsman 500 EFI. Thanks for any input

[bogginformud]

I purchased a plug and play module for my 2007 bruteforce 750i, You could notice it some but not so much to brag about, but then its carberated not efi.

[Bootlegger]

Depends on what you get....I put a Dynatek on my Brute Force...probably best mod. See if Dynatek makes one. What brand and type are you looking at???

[macmasters]

Extreme Performance Maximizer Performance Module is one i saw online but am open to any suggestions if they do any good