nope. but i needed to. taking a big chance with out tuning on these cars above 75 shot. i will say this is the smoothest nitrous kit youre gonna find for the 3v. it hits very smooth and the power is steady thru the whole rpm range. i could only imagine with proper tuning on this kit but i want a 4v 5.0 in my car so this and other stuff has got to go
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