To be fair to DP,

My bike ran fine with his mufflers and the Tors tune.. only got a little "poppy" after I added the crossover pipe but that also made a bigger difference to how much better the bike ran otherwise. But its true, I was under the impression that quick 12 minute special would take care of the mapping for the addition of the  crossover which it really couldn't. The Ramair guys tell you you will need a new map with the added airflow.


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