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You were correct. When changing exhaust and air cleaner you need to remap. You can get away with the stock tune if doing only one or the other. echoicse only added slip ons which wouldnt lean out the bike like adding head pipes would. The way he worded it made it seem as if he was gaining performance from his slip ons thinking he got away problem free without a tune, which isnt the case, his bike is just making more noise now
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Joined: Dec 2014
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From: SWFL
You were correct. When changing exhaust and air cleaner you need to remap. You can get away with the stock tune if doing only one or the other. echoicse only added slip ons which wouldnt lean out the bike like adding head pipes would. The way he worded it made it seem as if he was gaining performance from his slip ons thinking he got away problem free without a tune, which isnt the case, his bike is just making more noise now
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6th Gear
Joined: Apr 2015
Posts: 13
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From: Arkansas
You were correct. When changing exhaust and air cleaner you need to remap. You can get away with the stock tune if doing only one or the other. echoicse only added slip ons which wouldnt lean out the bike like adding head pipes would. The way he worded it made it seem as if he was gaining performance from his slip ons thinking he got away problem free without a tune, which isnt the case, his bike is just making more noise now
Club Member
Joined: Dec 2014
Posts: 10,734
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From: SWFL
I'm pretty sure the common consensus is that if you change airflow volume into the motor (with a high flow air cleaner) you need to change the ECM map to support it. Slip ons may or may not remove the cat from your exhaust system (don't know what year and model you have) which will also enhance the motors ability to breath. I believe the consequences of not changing the map is a too lean condition which can hurt the motor over time.
The tech forum is a better place to ask this question I think. And I'm generally an idiot so take my comments for what they are worth. Which is nothing...
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Joined: Dec 2007
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On my "WORK ORDER BILLING" from Stan's H.D. on the billing sheet. On the "Work Order Notes:" 35 lines section. Line 26 has written "CHECK AND ADJUST ENGINE IDLE SPEED AS NECESSARY, 950-1050 RPM". Line 32 has written "CK ECM CALIBRATION____________AND LATEST UPDATE____________. LEAVE AS IS IF THERE ARE NO PERFORMANCE ISSUES (long space...then) /BE CAREFUL OF SCREAMIN EAGLE CALIBRATION". No writing what-so-ever in the line 32 section! My 15K SERVICE p.m. had written was oil used, oil filter, PJ1 SUPER CLEANER, NON CA, INOX INJECTOR...cost of these items. So, ALL these "CHANGE, Lube, INSPECT and TEST" nothing written about "calibration redo's". Proves to me just like Stan's H.D. told me doing air cleaner and exhaust one at a time. Computer and E.F.I. will reset themselves! I haven't had NO misfires from engine whatsoever! Lastly, amusing with last subliminal last word you used "HOG...wash"!
Thayers Sales and Service..........then you'll know what right, is.
Scott
Road Master
Joined: Jul 2010
Posts: 776
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From: Tucson, AZ
I added python mamba slip ons at first and rode round like that for a year or so with no tune. I later added a K&N street metal intake and rode around like that for another couple years or so, without any fuel management system or flash tune. Then I added a ProPipe and decided to throw in a FuelPak. Stage 1 is as far as I am taking my bike and it runs really well with no popping during deceleration
Outstanding HDF Member
Joined: Aug 2012
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From: Detroit
Most of the time, it's your throttle position which has the biggest impact on air flow into the engine. Not your air cleaner.
Intermediate
Joined: Feb 2009
Posts: 48
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From: Western New York
The bold print was exactly how it was printed on the work sheet I got back from Stan's H.D.! I wanted to reproduce exactly what was on the work sheet! My belief would be that their service dept. mechanics would have informed me if I needed a tune! I would have given the "Go". So, moving on don't really get your "ladies...civil" thinking. You asked for advice from fellow Dyna Riders that's what you exactly got from this Rider! My opinion is what it is...do it this way or get the tune I honestly don't give a damn! I ALWAYS say "Your Bike-Your Money!"
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Intermediate
Joined: Feb 2009
Posts: 48
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From: Western New York
Thanks for the advice I'll keep that in mind!!! A Friend at work...of course a H.D. Rider...also told me about "Steve's Custom Cycle" in Lockport, N.Y. I want to check them out in the near future. My friend gets all his tunes from them.
Intermediate
Joined: Feb 2009
Posts: 48
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From: Western New York
You were correct. When changing exhaust and air cleaner you need to remap. You can get away with the stock tune if doing only one or the other. echoicse only added slip ons which wouldnt lean out the bike like adding head pipes would. The way he worded it made it seem as if he was gaining performance from his slip ons thinking he got away problem free without a tune, which isnt the case, his bike is just making more noise now
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