High flow air filter
High flow air filter
I have a 2006 Road King classic . It is all stock but wanted to get this high flow air filter from Amazon. I didn't think i needed a tune considering it was stock. I do want to put slip ons later on. Someone told me it needs to be set up for high flow filter. Is this correct?. https://www.amazon.ca/Motorcycle-Turbine-2000-2017-2000-2015-2000-2007/dp/B084N8X6HK/ref=pd_aw_ci_mcx_mh_mcx_views_0?pd_rd_w=T1sC4&pf_r d_p=63b40bb6-64b8-4f3b-b7f9-d5cd70240f4d&pf_rd_r=EWKNQWPP2VKC7BVBTYB6&pd_rd_r= e20b44cf-ce41-4afb-8d4d-9c6126f42bb7&pd_rd_wg=GWErd&pd_rd_i=B084N8X6HK
Last edited by Rogerio; Mar 29, 2022 at 02:55 PM. Reason: Spelling
Tourer
Joined: Jul 2016
Posts: 493
Likes: 92
From: NJ
If you are increasing air intake, you need to do slip ons. Normally people do both at the time or slip ons first. I had to add a tuner after doing slip ons and stage one filter to get rid of popping on deceleration.
Road Warrior
Joined: Apr 2018
Posts: 1,347
Likes: 820
From: Moneta, Virginia
I have an 01 TC88 Road King FI with a Screamin Eagle high flow air cleaner and stock exhaust
it runs great and gets 47+ mpg!
Ive been told, the MM FI system on the 01 and earlier can compensate by +\- 10% fuel delivery.
Im guessing the Delphi system will do the same.
Put the air cleaner on and see how she runs, I dont think you can damage anything.
Ive been told, the MM FI system on the 01 and earlier can compensate by +\- 10% fuel delivery.
Im guessing the Delphi system will do the same.
Put the air cleaner on and see how she runs, I dont think you can damage anything.
Stellar HDF Member
Joined: Nov 2005
Posts: 3,183
Likes: 836
From: KMHT KFMY
1) unless the bike has had something done to it that requires lots of air, IMHO the stock filter is fine.
2) most "high flow" filters are high flow because they filter less. IMHO
3) unless it is K&N or Wix, I use factory filters
4) The stock tunes on any HD suck, thanks to the EPA, any bike can benefit from a good tune session and manipulation of the fuel map
2) most "high flow" filters are high flow because they filter less. IMHO
3) unless it is K&N or Wix, I use factory filters
4) The stock tunes on any HD suck, thanks to the EPA, any bike can benefit from a good tune session and manipulation of the fuel map
Do the full stage 1 at the same time. Get yourself a new exhaust system, high flow air cleaner, and a tuner. You're looking at spending between $1500-$2500. That being said will your ECM adjust for the new AFR (air/fuel ratio)? Up to 10%. However, if you're changing anything from stock to increase more air and/or fuel you should get a tuner.
I recommend that you do your homework first by searching other posts, see what others have said/or have done, and then make a decision as to what you want to do. There is some good info here and bad info as well. You'll learn to filter through all that if you spend enough time on here.
Welcome to the forum
Ride safe!
I recommend that you do your homework first by searching other posts, see what others have said/or have done, and then make a decision as to what you want to do. There is some good info here and bad info as well. You'll learn to filter through all that if you spend enough time on here.
Welcome to the forum
Ride safe!
Tourer
Joined: Oct 2015
Posts: 254
Likes: 98
From: San Diego, CA
Yes. High flow air filter by itself needs tuning. High flow exhaust by itself does not, but if you also add the high flow air filter with it, yes, you will need tuning.
Trending Topics
Stellar HDF Member
Joined: Oct 2013
Posts: 2,575
Likes: 3,171
From: Lake Geneva WI
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
10 Worst Harley-Davidson Motorcycles Ever
Pouria Savadkouei
Killer Custom's Jail Break Is The Breakout That Refused to Blend In
Verdad Gallardo
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Verdad Gallardo
Harley-Davidson Reveals Super Cool Cafe Racer Concept
Verdad Gallardo
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Verdad Gallardo
10 Motorcycles You Should Never Buy
Joe Kucinski
10 Things Harley-Davidson Needs to Fix in 2026
Verdad Gallardo
Southpaw Super Glide: A Left-Hand-Drive 1979 Harley FXE Built to Fit the Rider
Verdad Gallardo
The Best and Worst Harley-Davidson Moves of 2025
Verdad Gallardo
I have the EFI. Was looking on the web for a tuner but didn't see one for that year. Looks like I'll wait till i get slip ons also before i spend money on a tune. Little nervous about installing the high flow air filter. It already in my opinion runs hot. Again coming from metric bike world but i do smell hot oil when i pull into garage from a trip. That smell you get when you pull your oil cap from a hot vehicle. All good. Spend time on checking more important things on her like cam chain tensioners. Unfortunately Harley has you by the ***** working on their bikes. Special tools for pulling tensioners and locking the gears. Was going to do it myself when i feel brave enough.
Stellar HDF Member
Joined: Nov 2005
Posts: 3,183
Likes: 836
From: KMHT KFMY
It is always going to seem HOT compared to a Metric, especially one that is water cooled ( so anything from the last 25 years)
Some things that help, but not to the point the bike will ever be cool would be an oil cooler and a Wards or other fan system
I have my target AF ratio at 12:5 to 1 on my 2003.. there are some cells I have added fuel to and I watch the timing... but my oil temp on a hot day in FL is still 220 degrees
Some things that help, but not to the point the bike will ever be cool would be an oil cooler and a Wards or other fan system
I have my target AF ratio at 12:5 to 1 on my 2003.. there are some cells I have added fuel to and I watch the timing... but my oil temp on a hot day in FL is still 220 degrees