A power commander with a map for bolt-ons from Dynojets website, or one included with your commander purchase, will give you a nice boost in power and throttle response over just the shinki's alone. You don't need the commander tho...but I would do it, its been money well spent on my machines with bolt-ons and some other modsHi new to the forum and busas just ordered these cans anybody have any and willi need a power commander
Cheers