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These do not require a tune but as always with the newer cars, they really respond to tunes very well. There is a noticeable difference both in HP and exhaust volume and tone. These will make your 11-14 Boss Coyote make some noise Eyden.
They really help out the engine when you combine them with a full aftermarket free flowing exhaust.
Answered by BRYAN M. from TROY | 1 Comments 0 0
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