Hi folks..
I put vance and Hines slips on on my 2022 street glide and a cheap Amazon air intake and filter to replace stock one. Question is, do I need a tuner?

 

Wouldn't hurt. Anything to richen the mix a bit would help.

 

Ok thanks

 

Do you NEED a tune...... no

Would you benefit from a tune.... yes

The M8 bikes aren't as lean in OEM form as the Twin Cam bikes were... so a Stage I retune isn't critical, but would help...

FWIW....

In '20 or '21 they changed the ECM... not sure if they changed the tune parameters at that time....

Prior tunes are only closed loop (with O2 sensor feedback) in part of the tune, mostly the cruising areas of the tune map. The rest of the tune is open loop, with no real time O2 sensor feedback. The open loop portion is in the high rpm, high load areas of the tune where AFR is most critical...

So if you are an aggressive driver and spend a lot of time in the high load and/or high rpm portions of your tune, you will be a little lean in those areas...

 

But do I need it?

 

Thank you, that really helps going for and spending or not spending the money for one.

 

Basically, the MoCo puts the tune on their bikes that the EPA wants them to put on them, not what's best for the bike as far as being too lean and the bike not running at it's best performance level. If you want what's best for your bike, tune it.

 

You replaced both air intake and exhaust so Yes you do need a tune. SE street tuner if you value 2 year warranty.
Air flow is a critical part of a properly running motor and keeping crap out of the intake is vital to its longevity. I could never see why anyone would but cheap parts on a new bike that is worth $$$$$.

 

You were just told you don't NEED it.

 

the m8’s do not need a tune even with an air cleaner and exhaust. It’s not required. Will it run a little better, yes, but very minutely (less than 5%)