Rule of thumb... one change, nothing else is needed... two changes.. get a tuner
Change only the air cleaner... fine as is...
Change only the exhaust... fine as is...
Change the air cleaner and the exhaust... get a tuner...
But my suggestion... get a tuner even if you leave it stock. They seem to need one due to the MOCO settings to pass EPA requirements.
Change only the air cleaner... fine as is...
Change only the exhaust... fine as is...
Change the air cleaner and the exhaust... get a tuner...
But my suggestion... get a tuner even if you leave it stock. They seem to need one due to the MOCO settings to pass EPA requirements.