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no but i guess the 08 maping is so fat you can. but just to be safe i would put one on it and put it on the dyno and tune it in.
 

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I ran one (speedwerx) for about a 100 miles without a boondocker. It ran real good. Prior to putting the pipe on the plugs were black indicating a rich condition. After the pipe the plugs were cinamon in color so it leaned it out. However, it was definitely lean in the 5-6K range. So much so that after that ride I went out and bought a boondocker. I ended up leaning out the bottom end and riching it up in the 5-6K range. I just didn't feel comfortable and felt it better to spend the $ on the boondock now and not $ on rebuilding the engine.
 
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