How true is Uphill Enhancer / Lag Reducer ?

[AmfufuTM]

Hi Guys,

I'am driving my 08' Fortuner G in the hills of Baguio City and napapansin ko na medyo humihina na ang power niya paakyat. Kailangan mo talaga tapakan ang accelerator and/or shift to lower gears. Regular naman ang basic maintenance like oil change, tune up kada long trip including tyre pressure.

I've been searching around to get some relevant information and usually na lumalabas na information is low boost on turbo, fuel to air ration incorrect, madumi turbocharger. Now, I admit na hindi ko masyadong napapansin to dahil sa basic maintenance nga lang ginagawa ko but I'll make sure to include this one on my next visit sa mga repair shop.

Now, may nakita akong repair shop that specializes on diesel engine calibration. Sa shop na yun ay may ini-endorse silang product na kung tawagin ay Uphill Enchancer (pic attached). Nakaka restore/enhance daw siya ng power sa mga Toyota Engines like D4D, 1GD and alike. Maning mani na daw ang paakyat kahit naka 3rd gear ka pa hehehe. May question is, is this legit? kung legit man, may epekto kaya eto sa makina?