Harley Davidson Forums

Touring Models Road King, Road King Custom, Road King Classic, Road Glide, Street Glide, Electra Glide, Electra Glide Classic, and Electra Glide Ultra Classic bikes.
Sponsored by:
Sponsored by:

Jackpot 4" slip's

Thread Tools
 
Search this Thread
 
Old Nov 26, 2010 | 08:30 AM
Share
  #1  
Rick Lees's Avatar
Rick Lees
Thread Starter
|
Road Captain
Joined: Jul 2010
Posts: 503
Likes: 1
From: Missouri
Default Jackpot 4" slip's
Want keep from changing AC and having to do any tuning for now but want a little more sound without a headache after a long ride....... these sound good???????.
 
Reply
0
Old Nov 27, 2010 | 02:30 AM
Share
  #2  
Navy UC Rider's Avatar
Navy UC Rider
Road Captain
Joined: May 2010
Posts: 636
Likes: 1
From: Monterey, CA
Default
Originally Posted by Rick Lees
Want keep from changing AC and having to do any tuning for now but want a little more sound without a headache after a long ride....... these sound good???????.
I had the smaller Jackpots (3.5 inch??). They say the 4 inch sound the same. You should be fine with just changing slip-ons, just don't expect any performance gains. If you are worried about running too lean (which we already are) just keep an eye on the plugs.

I removed my Jackpots because they were a little too loud for the wife while touring. We have done some 8-10 hour days, she had headaches by the end of the day.

Cale
 
Reply
0
Old Nov 29, 2010 | 01:41 PM
Share
  #3  
fuelmoto's Avatar
fuelmoto
Platinum Sponsor
15 Year Member
Liked
Loved
Community Favorite
Joined: Feb 2007
Posts: 7,287
Likes: 4,285
From: Little Chute, WI
Default
Originally Posted by Rick Lees
Want keep from changing AC and having to do any tuning for now but want a little more sound without a headache after a long ride....... these sound good???????.
If you leave your stock air cleaner in place you can add the Jackpot 4" mufflers with no problems. While sound is very objective, the Jackpot Dyno Tuned mufflers are only 2dB louder in the cruise range than the stock mufflers when used on catalyst equipped bike, and on a non-catalyst equipped bike they are 3dB louder, however at full throttle they have a nice deep, powerful sound. Sound level is on the very reasonable side as far as aftermarket mufflers are concerned, we also offer an optional tunable quiet baffle as well as competition baffles for the 3.5" mufflers and will have them soon for the 4" Jackpots. You can also expect a 2-4 Hp gain that has been dyno proven hundreds of times with just the muffler swap, and as much as 8-9 more with the Stage 1 air cleaner and retuning.

Here is some information on some dB test info we have performed for our Jackpot Dyno Tuned mufflers along with the optional Jackpot Competiton baffles and Jackpot Tunable Quiet baffle. These tests were performed using SAEJ2825 test procedures using a JTW digital sound meter. The test bike was a 2009 Touring model with stock headpipes and Stage 1 air cleaner.

Stock mufflers IDLE 78.4 dB SET RPM 90.9 dB
Jackpot Tunable Quiet baffle with Silent Insert in IDLE 81.9 dB SET RPM 91.7 dB
Jackpot Tunable Quiet baffle with Silent Insert out IDLE 83.6 dB SET RPM 92.5 dB
Jackpot Dyno Tuned baffles IDLE 83.6 dB SET RPM 93.9 dB
Jackpot Competition Baffles IDLE 89.3 dB SET RPM 100.3 dB
Jackpot Carbon Billet mufflers IDLE 84.5 dB SET RPM 97.8 dB

For Comparison:
Rinehart Slip on mufflers IDLE 84.6 dB SET RPM 98.9 dB
Rush slip on w/ 2.00 baffles IDLE 84.2 dB SET RPM 98.2 dB
 
__________________


Jamie Long / Fuel Moto USA
The USA's Leader V-Twin EFI & Performance www.fuelmotousa.com
Contact 920-423-3309
Email jamie@fuelmotousa.com










Reply
0
Old Nov 29, 2010 | 02:11 PM
Share
  #4  
azbob09's Avatar
azbob09
Tourer
15 Year Member
Joined: Aug 2009
Posts: 450
Likes: 11
From: Phoenix,Az. area
Default
Originally Posted by fuelmoto
If you leave your stock air cleaner in place you can add the Jackpot 4" mufflers with no problems. While sound is very objective, the Jackpot Dyno Tuned mufflers are only 2dB louder in the cruise range than the stock mufflers when used on catalyst equipped bike, and on a non-catalyst equipped bike they are 3dB louder, however at full throttle they have a nice deep, powerful sound. Sound level is on the very reasonable side as far as aftermarket mufflers are concerned, we also offer an optional tunable quiet baffle as well as competition baffles for the 3.5" mufflers and will have them soon for the 4" Jackpots. You can also expect a 2-4 Hp gain that has been dyno proven hundreds of times with just the muffler swap, and as much as 8-9 more with the Stage 1 air cleaner and retuning.

Here is some information on some dB test info we have performed for our Jackpot Dyno Tuned mufflers along with the optional Jackpot Competiton baffles and Jackpot Tunable Quiet baffle. These tests were performed using SAEJ2825 test procedures using a JTW digital sound meter. The test bike was a 2009 Touring model with stock headpipes and Stage 1 air cleaner.

Stock mufflers IDLE 78.4 dB SET RPM 90.9 dB
Jackpot Tunable Quiet baffle with Silent Insert in IDLE 81.9 dB SET RPM 91.7 dB
Jackpot Tunable Quiet baffle with Silent Insert out IDLE 83.6 dB SET RPM 92.5 dB
Jackpot Dyno Tuned baffles IDLE 83.6 dB SET RPM 93.9 dB
Jackpot Competition Baffles IDLE 89.3 dB SET RPM 100.3 dB
Jackpot Carbon Billet mufflers IDLE 84.5 dB SET RPM 97.8 dB

For Comparison:
Rinehart Slip on mufflers IDLE 84.6 dB SET RPM 98.9 dB
Rush slip on w/ 2.00 baffles IDLE 84.2 dB SET RPM 98.2 dB
Jaime,
Were the Rinehart slip on's in the comparison test 3 1/2" or 4" ?
Thanks...
 
Reply
0
Old Nov 29, 2010 | 02:44 PM
Share
  #5  
fuelmoto's Avatar
fuelmoto
Platinum Sponsor
15 Year Member
Liked
Loved
Community Favorite
Joined: Feb 2007
Posts: 7,287
Likes: 4,285
From: Little Chute, WI
Default
Originally Posted by azbob09
Jaime,
Were the Rinehart slip on's in the comparison test 3 1/2" or 4" ?
Thanks...
They were the Rinehart 3.5" mufflers, however they have the same core in their 4" mufflers which will dB test the same
 
Reply
0
Old Nov 29, 2010 | 04:25 PM
Share
  #6  
Rick Lees's Avatar
Rick Lees
Thread Starter
|
Road Captain
Joined: Jul 2010
Posts: 503
Likes: 1
From: Missouri
Default
Originally Posted by fuelmoto
If you leave your stock air cleaner in place you can add the Jackpot 4" mufflers with no problems. While sound is very objective, the Jackpot Dyno Tuned mufflers are only 2dB louder in the cruise range than the stock mufflers when used on catalyst equipped bike, and on a non-catalyst equipped bike they are 3dB louder, however at full throttle they have a nice deep, powerful sound. Sound level is on the very reasonable side as far as aftermarket mufflers are concerned, we also offer an optional tunable quiet baffle as well as competition baffles for the 3.5" mufflers and will have them soon for the 4" Jackpots. You can also expect a 2-4 Hp gain that has been dyno proven hundreds of times with just the muffler swap, and as much as 8-9 more with the Stage 1 air cleaner and retuning.

Here is some information on some dB test info we have performed for our Jackpot Dyno Tuned mufflers along with the optional Jackpot Competiton baffles and Jackpot Tunable Quiet baffle. These tests were performed using SAEJ2825 test procedures using a JTW digital sound meter. The test bike was a 2009 Touring model with stock headpipes and Stage 1 air cleaner.

Stock mufflers IDLE 78.4 dB SET RPM 90.9 dB
Jackpot Tunable Quiet baffle with Silent Insert in IDLE 81.9 dB SET RPM 91.7 dB
Jackpot Tunable Quiet baffle with Silent Insert out IDLE 83.6 dB SET RPM 92.5 dB
Jackpot Dyno Tuned baffles IDLE 83.6 dB SET RPM 93.9 dB
Jackpot Competition Baffles IDLE 89.3 dB SET RPM 100.3 dB
Jackpot Carbon Billet mufflers IDLE 84.5 dB SET RPM 97.8 dB

For Comparison:
Rinehart Slip on mufflers IDLE 84.6 dB SET RPM 98.9 dB
Rush slip on w/ 2.00 baffles IDLE 84.2 dB SET RPM 98.2 dB
Thanks Jamie for the PM and this info just wanted to know what everybody else thought of them I'll be thinking harder about this in the coming days.
 
Reply
0
Old Nov 29, 2010 | 09:16 PM
Share
  #7  
HighLiner's Avatar
HighLiner
Road Warrior
15 Year Member
Joined: Oct 2010
Posts: 1,332
Likes: 34
From: Michigan
Default
If the 3.5" and 4" have the same cores why go 4"?
 
Reply
0

Trending Topics

Old Nov 29, 2010 | 09:40 PM
Share
  #8  
Gadgetech's Avatar
Gadgetech
Club Member
20 Year Member
Photogenic
Liked
Loved
Joined: Jan 2005
Posts: 1,633
Likes: 54
From: GA
Default
The 4" sound totally different than the 3.5s. Much deeper and less crack. I ride w/ a guy that has the 3.5s on his 2007 SG and they seem louder and he contends he can't hear my 4" ers after I pull off from a stop while he is riding behind.
 
Reply
0
HD Forum Stories

The Best of Harley-Davidson for Lifelong Riders

story-0

7 Times Harley-Davidson Chucked Tradition Out the Window

 Verdad Gallardo
story-1

7 Surprising Harley-Davidson Products that Are Not Motorcycles

 Verdad Gallardo
story-2

8 Best Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-3

10 Worst Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-4

Killer Custom's Jail Break Is The Breakout That Refused to Blend In

 Verdad Gallardo
story-5

Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?

 Verdad Gallardo
story-6

Harley-Davidson Reveals Super Cool Cafe Racer Concept

 Verdad Gallardo
story-7

Engraved Rebellion: Inside Bundnerbike's Glam Rock II

 Verdad Gallardo
story-8

10 Motorcycles You Should Never Buy

 Joe Kucinski
story-9

10 Things Harley-Davidson Needs to Fix in 2026

 Verdad Gallardo
Old Nov 30, 2010 | 12:09 PM
Share
  #9  
fuelmoto's Avatar
fuelmoto
Platinum Sponsor
15 Year Member
Liked
Loved
Community Favorite
Joined: Feb 2007
Posts: 7,287
Likes: 4,285
From: Little Chute, WI
Default
Originally Posted by Gadgetech
The 4" sound totally different than the 3.5s. Much deeper and less crack. I ride w/ a guy that has the 3.5s on his 2007 SG and they seem louder and he contends he can't hear my 4" ers after I pull off from a stop while he is riding behind.
If tested on the same bike with the same headpipe and mods a 3.5" and 4" muffler will sound the same if they have the same core, there is only a .25 difference in air gap between the muffler body between them. This is something we have tested extensively with both dB equipment and on-road testing. Mufflers also sound different with the "new style" OEM 2/1/2 headpipes compared to the earlier headpipe, and the 2010/2011 catalyst headpipes sound different yet as the catalyst suppresses sound by as much as 2-3 dB.

As a side note when comparing the Rinehart slip ons, it is important to note there have been signifigant changes in the internals over the years. The previous Rinehart by Bub mufflers had several baffle variations over the years, while the current Rinehart mufflers produced by Clearline Inc have all used the same 2.25 cores in their 3.5" and 4" mufflers. Overall while they have changed, they have all sounded and performed well
 
Reply
0
Old Nov 30, 2010 | 12:11 PM
Share
  #10  
fuelmoto's Avatar
fuelmoto
Platinum Sponsor
15 Year Member
Liked
Loved
Community Favorite
Joined: Feb 2007
Posts: 7,287
Likes: 4,285
From: Little Chute, WI
Default
Originally Posted by HighLiner
If the 3.5" and 4" have the same cores why go 4"?
They are both excellent mufflers. Some prefer the styling and looks of the larger muffler body, performance is the same
 
Reply
0



Advanced Search
Reply Closed Thread Share
Forum Jump

All times are GMT -5. The time now is 02:44 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