new mods
yea it whistles but i did notice about 4mpg difference with them both on, didnt check one without the other. but i got some nice gains from them both together. prolly around 30hp by the feel of it. its a nice mod for 100 bucks i think but like bigyellow said it is annoying for my truck to whistle like that.
Originally Posted by NCBADGES
What kind of light switch is that and what does it work? I like it.
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