Thunderheader!
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Club Member
Joined: Apr 2016
Posts: 11,683
Likes: 8,495
From: Inland NW
Thunderheader!
Why is there no love for the T-header exhaust for the M8? I heard one recently on a cammed 131, and I was in love!
I have been trying to decide on my new exhaust system, and HAD it narrowed down to 2 until I came across this '20 CVO with that black TH system, so I have been scouring the web looking for info about tuning issues, power curves, etc. when coupled with aftermarket big bore builds, and bigger cams. There is not a ton out there. There are a few YouTube vids, you should hear this thing.
They are expensive as ****, lots of people complaining about availability, etc. but certainly not a lot of info about how good/bad they can be tuned on the dyno.
This guy with his 131 didn't know what cam he had, or anything else do that was a bust. Sounded just awesome, though.
Anybody have any info? My list of parts is nearly complete! I just need to pick a pipe, damn it!
I am going to hit up the local tuner one last time, see if he knows anything. He wants me to get the Bassani
I have been trying to decide on my new exhaust system, and HAD it narrowed down to 2 until I came across this '20 CVO with that black TH system, so I have been scouring the web looking for info about tuning issues, power curves, etc. when coupled with aftermarket big bore builds, and bigger cams. There is not a ton out there. There are a few YouTube vids, you should hear this thing.
They are expensive as ****, lots of people complaining about availability, etc. but certainly not a lot of info about how good/bad they can be tuned on the dyno.
This guy with his 131 didn't know what cam he had, or anything else do that was a bust. Sounded just awesome, though.
Anybody have any info? My list of parts is nearly complete! I just need to pick a pipe, damn it!
I am going to hit up the local tuner one last time, see if he knows anything. He wants me to get the Bassani
Seasoned HDF Member
Joined: Feb 2009
Posts: 5,642
Likes: 1,985
From: Cleveland Zoo
Thunderheader was among about three exhausts at the top of my to-try list for a big power street build, delivered from Dennis Kirk within two days.
This video is right after install; I'm getting a new tune in the Spring. You'll get similar sound on a bagger and a "no dip" dyno graph.
It actually seems quieter than my previous Thrashin exhaust.
This video is right after install; I'm getting a new tune in the Spring. You'll get similar sound on a bagger and a "no dip" dyno graph.
It actually seems quieter than my previous Thrashin exhaust.
Supporter
Joined: Mar 2020
Posts: 1,013
Likes: 599
From: Northeast Louisiana
Ya better get the TH or you will NEVER be happy!
It is not like it is a bad or inferior exhaust.
Would never be enough to tell a difference so get what makes ya happy!👍
Still waiting to hear your cam choice!
Didja see new GMR-555 that they just tested in a SE-131? 😜
It is not like it is a bad or inferior exhaust.
Would never be enough to tell a difference so get what makes ya happy!👍
Still waiting to hear your cam choice!
Didja see new GMR-555 that they just tested in a SE-131? 😜
Cruiser
Joined: May 2013
Posts: 136
Likes: 98
From: Mi
Thunderheader was among about three exhausts at the top of my to-try list for a big power street build, delivered from Dennis Kirk within two days.
This video is right after install; I'm getting a new tune in the Spring. You'll get similar sound on a bagger and a "no dip" dyno graph.
It actually seems quieter than my previous Thrashin exhaust.
https://www.youtube.com/watch?v=xvay5BPuUKs
This video is right after install; I'm getting a new tune in the Spring. You'll get similar sound on a bagger and a "no dip" dyno graph.
It actually seems quieter than my previous Thrashin exhaust.
https://www.youtube.com/watch?v=xvay5BPuUKs
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Thread Starter
|
Club Member
Joined: Apr 2016
Posts: 11,683
Likes: 8,495
From: Inland NW
Thunderheader was among about three exhausts at the top of my to-try list for a big power street build, delivered from Dennis Kirk within two days.
This video is right after install; I'm getting a new tune in the Spring. You'll get similar sound on a bagger and a "no dip" dyno graph.
It actually seems quieter than my previous Thrashin exhaust.
https://www.youtube.com/watch?v=xvay5BPuUKs
This video is right after install; I'm getting a new tune in the Spring. You'll get similar sound on a bagger and a "no dip" dyno graph.
It actually seems quieter than my previous Thrashin exhaust.
https://www.youtube.com/watch?v=xvay5BPuUKs
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Seasoned HDF Member
Joined: Feb 2009
Posts: 5,642
Likes: 1,985
From: Cleveland Zoo
Baggers with a longer exhaust should not get a dip, different story for Softail.
Seasoned HDF Member
Joined: Feb 2009
Posts: 5,642
Likes: 1,985
From: Cleveland Zoo
"Our X-SERIES™ Exhaust is our newest line in creating maximum horsepower. With our 2" headpipe, equal length tubes, and a larger collector, this exhaust is made specifically for Harley-Davidson's Milwaukee-Eight™ engine."