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Seriously though look thru the bumper at the drivers fog and you can it has methanol or not, that will let you know it's at least a stage 2.......if it has the oem fuel rail it's a stage 2.75 or under.....other than that you would have to climb under the car and what size snail it has . There are other differences between the kits but those can be an upgrade on stages lower.
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2003 TiAg HPF stage 2.5 SMG M3 vert |