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[Smitty082261]

I just bought a 2013 cvo platinum road king and I am adding Vance Hines dual head pipes and Rinehart 4" mufflers. My question is do I have to put a tuner on it. It seems it should run fine without one. Not looking for more power just sound. Thanks in advance

[2k]

When you dump the cat and the restrictive baffels, you are increasing the exhaust flow a bunch. For optimum performance you will need a tuner. Can you ride it without one? Sure. If money is tight try it and see how you like the performance, but I would stay away from full throttle runs.

[Smitty082261]

Thanks. Money is not the issue. I just thought the ECM would adjust to the o2 sensors

[Tru-Blu]

I thought that removing the catalytic converter also affects the exhaust mixture in that the bike ends up running leaner.  A tune is supposed to compensate for that so that the bike's mixture is closer to what the engine is expecting.  The tangible results are supposed to be a slight increase in horsepower and a decrease in engine temperature.

Personally, I'd recommend a tune either from a shop/tuner or doing it yourself ala TTS.

[phato1]

Thanks. Money is not the issue. I just thought the ECM would adjust to the o2 sensors

The ECM could have done that with JUST a muffler change. Changing the mufflers AND the headpipes requires a tuning device.

 I use the TTS but there are other options.

[Smitty082261]

Thanks a mill