Side mount header muffler
Thread Starter
Instructor
Joined: May 2017
Posts: 244
Likes: 33
From: connecticut
Side mount header muffler
Any one have any experience with the Doug's High-Flo side pipe muffler inserts...
I'm running open headers right now and it's just to loud. And I don't want to get pinched for the noise....
Do the High flows kick it down enough to get me out of a ticket?
I'm running open headers right now and it's just to loud. And I don't want to get pinched for the noise....
Do the High flows kick it down enough to get me out of a ticket?
Heel & Toe
Joined: Dec 2007
Posts: 23
Likes: 5
From: Orange County, NY
2026 Loser of the Year
Joined: Sep 2013
Posts: 36,555
Likes: 7,006
From: New Or-leens Loo-z-anna
I always get "quiet" inserts for my Harley and Vette....if they are too quiet I drill/enlarge the holes in the insert until I get the sound I'm comfortable with.
Race Director
Joined: Mar 2017
Posts: 11,880
Likes: 4,468
From: Virginia
A previous owner welded 18" of cherry bombs at the end of my Hooker headers, and used 4" truck stack pipes as the extensions. They are basically open pipes, so I'm following for better suggestions.
I've read on the Forum (but not heard in person) that the spiral inserts are worth considering.
https://www.spiralturbobaffles.com/
Safety Car
Joined: Apr 2015
Posts: 4,880
Likes: 201
From: Jackson MS
I have Doug's inserts in my side pipes.
At normal cruising speed, you can carry on an conversation with the other person in the car.
At wide open throttle, they're pretty loud.
Side note - If you do go with these inserts, you can wrap them with DEI titanium header wrap before sliding them into the side pipe.
With my wrapped inserts, I can put my bare hand on the pipe where the insert is after a 30 minute drive.
At normal cruising speed, you can carry on an conversation with the other person in the car.
At wide open throttle, they're pretty loud.
Side note - If you do go with these inserts, you can wrap them with DEI titanium header wrap before sliding them into the side pipe.
With my wrapped inserts, I can put my bare hand on the pipe where the insert is after a 30 minute drive.
Drifting
Joined: Dec 2011
Posts: 1,742
Likes: 289
From: Chardon Ohio
Not sure if this answers your question but I had the Doug's medium loudness ones before I switched to Vettepacks. Here is thread and video:
https://www.corvetteforum.com/forums...ettepacks.html
https://www.corvetteforum.com/forums...ettepacks.html
Melting Slicks
Joined: May 2004
Posts: 2,737
Likes: 835
From: Gulf of America
2023 C7 of the Year Finalist - Unmodified
2018 C3 of Year Finalist
I went with the Spiral Turbo Baffles ( https://www.spiralturbobaffles.com/ ) years ago in my Hookers.
They are all metal with nothing to wear out. I even modified the central tube so I can easily unblock it when I want the extra flow when at the track.
I've been very happy with them.
They are all metal with nothing to wear out. I even modified the central tube so I can easily unblock it when I want the extra flow when at the track.
I've been very happy with them.
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Instructor
Joined: Nov 2009
Posts: 123
Likes: 26
From: Tulsa Ok.
Billy Boat Exhaust makes side pipes that are insulated and flow well. They say you san touch them and not get burnt. They claim no heat shields are needed. I have some ordered now so no personal experience .
Le Mans Master
Joined: Oct 2006
Posts: 7,123
Likes: 433
From: Gladstone MO
C3 of Year Finalist (appearance mods) 2019
I went with the Spiral Turbo Baffles ( https://www.spiralturbobaffles.com/ ) years ago in my Hookers.
They are all metal with nothing to wear out. I even modified the central tube so I can easily unblock it when I want the extra flow when at the track.
I've been very happy with them.
They are all metal with nothing to wear out. I even modified the central tube so I can easily unblock it when I want the extra flow when at the track.
I've been very happy with them.
Thread Starter
Instructor
Joined: May 2017
Posts: 244
Likes: 33
From: connecticut
Thanks for all your replies...I decided on the Doug's D952's...
I called tech support at Doug's and the guy said that the D952's were discontinued because they were too loud..
So I found them somewhere else and went with those,
My wife is gonna be pissed
I called tech support at Doug's and the guy said that the D952's were discontinued because they were too loud..
So I found them somewhere else and went with those,
My wife is gonna be pissed
Intermediate
Joined: Jul 2019
Posts: 42
Likes: 11
Not as pissed as she will be when her leg gets burned. My wife burner her leg for the first time on the sidepipe this weekend. I forgot to remind her to be careful before we got out. I run the STS spiral baffles in mine and like the sound by the way/
Burning Brakes
Joined: Jul 2013
Posts: 963
Likes: 57
From: Vancouver, BC
