Exhaust System Topics New and old exhaust system discussions. Fitment issues to sound bites and suggestions. Post them here.

How will it effect fuel mileage?

Thread Tools
 
Search this Thread
 
Old Dec 18, 2009 | 07:42 PM
  #1  
Drbukk06's Avatar
Drbukk06
Thread Starter
|
Intermediate
Joined: Mar 2008
Posts: 28
Likes: 0
From: GEORGIA
Default How will it effect fuel mileage?

I have a 2005 Road King FLHR with carb. As a stock bike I regularly get 46-48 MPG. To give it a little more sound, I am thinking of installing a set of Vance and Hines basic slip-on's. But one thing leads to another, so I would also install a stage-1 jet kit and a K&N filter air kit. After doing all this, what can I expect the fuel mileage to be?
 

Last edited by Drbukk06; Dec 18, 2009 at 08:00 PM. Reason: Want the title in bold letters
Reply
Old Dec 18, 2009 | 09:10 PM
  #2  
paul s's Avatar
paul s
Outstanding HDF Member
Joined: May 2008
Posts: 2,166
Likes: 4
From: la
Default

This is an easy one, A good flowing system jetted right will get better MPG, But, it will sound better and run better causing you to be on the gas more resulting in worse MPG.
 
Reply
Old Dec 18, 2009 | 10:20 PM
  #3  
gsxrboy96's Avatar
gsxrboy96
Road Warrior
Joined: Oct 2009
Posts: 1,251
Likes: 1
Default

i just did a buddys electra glide, (evo), and we went with rinhart true duals and a arlen ness big sucker plate, and i jetted the bike up, and he reported a gain for the entire tank over stock??? im assuming the mpg went down in the city, but up in the highway? who knows. but hes happy. chad.
 
Reply
Old Dec 19, 2009 | 07:09 AM
  #4  
maineultraclassic's Avatar
maineultraclassic
Elite HDF Member
Joined: Mar 2006
Posts: 4,722
Likes: 5
From: Biddeford, Maine
Default

As long as the jetting is right, you're MPG should be the same or better. If you go too big on the jets and start running rich, then your MPG will go down. Don't go crazy with the jets, needle, and screw settings and you should be fine.

Steve
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
steelpix
Sportster Models
28
May 24, 2014 05:02 PM
fwb35
Touring Models
50
Jul 24, 2012 11:50 AM
ENGINE5
Exhaust System Topics
2
May 10, 2009 11:01 PM
geser
Touring Models
27
May 6, 2007 01:17 PM
mchacon
Touring Models
8
Jun 10, 2006 09:15 AM




All times are GMT -5. The time now is 08:30 PM.

story-0
7 Times Harley-Davidson Chucked Tradition Out the Window

Slideshow: Harley-Davidson built its reputation on nostalgia, but every so often, the company took a hard left turn into the future.

By Verdad Gallardo | 2026-05-20 11:18:19


VIEW MORE
story-1
7 Surprising Harley-Davidson Products that Are Not Motorcycles

Slideshow: The bar-and-shield logo shows up on far more than motorcycles, some of the company's most unexpected products have nothing to do with riding.

By Verdad Gallardo | 2026-04-29 16:50:35


VIEW MORE
story-2
8 Best Harley-Davidson Motorcycles Ever

Slideshow: Not every Harley gets it right, but these are the ones that genuinely earned their reputation.

By Pouria Savadkouei | 2026-04-15 14:23:21


VIEW MORE
story-3
10 Worst Harley-Davidson Motorcycles Ever

Slideshow: From the troubled AMF years to modern misfires, these bikes earned reputations for reliability issues, questionable engineering, or disappointing performance.

By Pouria Savadkouei | 2026-04-01 20:01:09


VIEW MORE
story-4
Killer Custom's Jail Break Is The Breakout That Refused to Blend In

Slideshow: Killer Custom's "Jail Breaker" build focuses more on stance and visual aggression than mechanical overhaul.

By Verdad Gallardo | 2026-03-18 19:20:32


VIEW MORE
story-5
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?

Slideshow: The Swiss custom shop has taken a Harley Softail and stretched it into something so long and low that it looks closer to a rolling sculpture than a conventional motorcycle.

By Verdad Gallardo | 2026-03-07 16:15:30


VIEW MORE
story-6
Harley-Davidson Reveals Super Cool Cafe Racer Concept

Slideshow: Harley-Davidson's new RMCR concept revives the café racer formula with modern hardware-and it may be exactly the reset the company needs.

By Verdad Gallardo | 2026-03-04 12:23:37


VIEW MORE
story-7
Engraved Rebellion: Inside Bundnerbike's Glam Rock II

Slideshow: A standard cruiser becomes an intricate metal canvas in the hands of a Swiss custom house known for pushing Harley-Davidson platforms far beyond their factory brief.

By Verdad Gallardo | 2026-02-24 18:19:44


VIEW MORE
story-8
10 Motorcycles You Should Never Buy

Slideshow: There is no shortage of great motorcycles to buy, but we would avoid these ten.

By Joe Kucinski | 2026-02-19 14:50:51


VIEW MORE
story-9
10 Things Harley-Davidson Needs to Fix in 2026

Slideshow: Harley-Davidson's challenges aren't abstract; they show up in dropping shipments, shrinking dealer traffic, and strategic decisions that aren't yet translating into growth.

By Verdad Gallardo | 2026-01-13 18:33:17


VIEW MORE