Do I need baffles
Seasoned HDF Member
Joined: Dec 2010
Posts: 7,736
Likes: 1,524
From: Coromandel Peninsula New Zealand
Thanks for the comments.
I was also told I might be able to use cones inside the headers. As far as the torque, can I retard the ignition slightly to help this out. Not sure if the "HP Plus" will fit into my "mufflers". With the stock true duals do ya think their is enough scavenge. I have always loved the sound of an open exhaust potato, potato, potato, and worked rock shows for 10yrs so hearing 100% is not an option.
Cheers
I was also told I might be able to use cones inside the headers. As far as the torque, can I retard the ignition slightly to help this out. Not sure if the "HP Plus" will fit into my "mufflers". With the stock true duals do ya think their is enough scavenge. I have always loved the sound of an open exhaust potato, potato, potato, and worked rock shows for 10yrs so hearing 100% is not an option.
Cheers
Tourer
Joined: May 2009
Posts: 430
Likes: 2
From: ChiTown burbs
I can cones before and they were okay. Also you can try the washer trick as well as a cheapo but loud baffle alternative. They worked great on my previous bike and got rid of the horrible de-acceleration noise. If you don't know what the washer trick is let me know and I will find the link.
All I can say is wow. Wish I would've done this years ago. Sounds amazing. With no decel pop. Finally I have the sound I wanted all along.
Thanks for the reminder.
Tourer
Joined: Sep 2011
Posts: 288
Likes: 2
From: Sweet Home Alabama!
I love my unbaffled duals on my old, out of date, carbureted, unbalanced, vibrating EVO!!!
http://www.youtube.com/watch?v=f5_k-4cEJwQ
http://www.youtube.com/watch?v=f5_k-4cEJwQ
Dirt don't hurt
Joined: Jan 2011
Posts: 21,062
Likes: 4,547
From: Haslet Texas
How does your bike run without baffles? I tried the same setup you have without baffles and I lost so much power is was pathetic. I had to put some baffles in to get her to run right. I would love to get rid of the baffles but I can't figure out how to get rid of them and keep the power.
Elite HDF Member
Joined: Sep 2007
Posts: 4,468
Likes: 12
From: Bluffton, South Carolina
The only way that open pipes can hurt your valves is if you are running super shortys in a cold climate. Cold air can get into the pipes and cool the exhaust valve unevenly, that is why the Funny cars and Dragsters cover their pipes right away at the top end of the strip. However most Harley pipes run uphill so it would be more difficult for the air to infiltrate. Hope this helps.
Seasoned HDF Member
Joined: Aug 2010
Posts: 5,173
Likes: 177
From: East Coast
I like a beefier than stock sound, but cannot tolerate that raspy, hi-end noise from lack of baffles. A good system will mute those harsh overtones, but give plenty of low end muscle sound.
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
Seasoned HDF Member
Joined: Aug 2010
Posts: 5,173
Likes: 177
From: East Coast
I love my unbaffled duals on my old, out of date, carbureted, unbalanced, vibrating EVO!!!
http://www.youtube.com/watch?v=f5_k-4cEJwQ
http://www.youtube.com/watch?v=f5_k-4cEJwQ
Tourer
Joined: Sep 2011
Posts: 288
Likes: 2
From: Sweet Home Alabama!
How does your bike run without baffles? I tried the same setup you have without baffles and I lost so much power is was pathetic. I had to put some baffles in to get her to run right. I would love to get rid of the baffles but I can't figure out how to get rid of them and keep the power.