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injector, after the truth hits and you discover that cam swap is the only true way to cool that thing off, you will need the ability to tune.
even if you wait to do the cam swap, you still need a tuner, you will get ping when you open the breather and pipes.
so------you need a tuning device. PC3, thunder-max, SERT , direct-link, or master-tune can tune, the rest are a waste of money that could have been used towards purchase of one of above.
BTW, a good set of slip ons will save money and have better overall performance than the short shots. not to mention not having to tune around the dead bottom end and the decel popping.
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