Digital Horsepower PCM
Ok so i have $100 to spend and im thinkin about getting the digital horsepower pcm, butttttttt is it really necessary to fill it with premium fuel all the time, or can it go without it???? and if it can, will i notice any power gains without the premium fuel??? I probably do need to fill with good gas, but i just wanted to check with people and see what they have to say.
Thank you.
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2002 3400 & 3500 GL "Ruby"-->R.I.P. 163k. My first car. Put 130k on her.
2000 3500 GLS "Robin"-->Intake,Headers,Exhaust,H&R springs,KYB AGX,Sway bars,Strut bars and more
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