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459 Posts
My buddy and I both have llys, his is an 2004.5 and mine is a 2005. he is worried something is wrong with his truck. I have LBZ intake and mouthpiece and the maf is been flashed. I also have 4 in from down pipe back no cat or muffler. his is stock. I have 185 75 16 and he has 165 75 16. Mine pulls quite a bit harder then his, even though I have bigger tires. Will these mods make that big of a differance. or could he be having a problem. His truck is smooth, starts great and gets 18 mpg on the highway. I think his truck is fine. just looking for some opinions