thr purpose of the 1 inch spacer is to slightly lower your power band and give you more lower rpm torque , it will work and you will see gains on a dyno , but not 20 hp maybe 5-7 . the longer the distance from the throttle body to the intake valve , the more low end power you will have . so i guess it depends on your set up and what you are trying to do . i personally would not waste my money on it with the distance on a stock intake already being long enough to provide pretty good low end torque.
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