Flowmaster drone help?
Thread Starter
Intermediate
Joined: Oct 2015
Posts: 47
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Flowmaster drone help?
I've read reviews from other members saying that Flowmaster axelback had a nasty drone at 1500-1800RPM and sounded sweet after that. That couldn't be more true. As lovely as it sounds at any RPMs, it's killing me with a top up in 6th gear on the freeway... There's no other issue I have with and and It's still more than worth it.
My questions are... Will adding an x pipe or anything else ease that drone? Could this be because it's an axelback? Will I be better off with a Magnaflow axelback instead?
Help appreciated.
My questions are... Will adding an x pipe or anything else ease that drone? Could this be because it's an axelback? Will I be better off with a Magnaflow axelback instead?
Help appreciated.
Burning Brakes
Joined: Mar 2012
Posts: 836
Likes: 43
From: Killeen Texas
My Grand Sport has a slight drone at the same RPM range w/my cars aftermarket exhaust system as well. Mine has longtube headers & a catted x-pipe as well. I'm looking into this insulation kit in the link below...I haven't pulled the trigger yet. I'm still deciding if I would rather cut & layer a Dynapad/Dynaliner combo on my own or get a pre-cut kit...
http://www.exoticvette.com/insulation%20c6.htm
http://www.exoticvette.com/insulation%20c6.htm
Last edited by dmoneychris; Jan 23, 2016 at 08:27 PM.
Thread Starter
Intermediate
Joined: Oct 2015
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That's a think outside the box idea but for this to work it'd need to be pretty heavy like dynamat. I'd rather stick to options with exhaust modification like an X or H pipe or something along those lines. Still, appreciate the input.
Burning Brakes
Joined: Mar 2012
Posts: 836
Likes: 43
From: Killeen Texas
. If those X or H mods don't do the trick, you might keep the option on the table for down the road. If you're going to hold on to the car for a while.
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Thread Starter
Intermediate
Joined: Oct 2015
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The drone on mine isn't bad EXCEPT when I'm on a freeway in 6th gear touching the pedal to keep the speed. It has this super deep vacuum cleaner motorboat sound which I'm sure would be fine with the top down. That's my concern.
Racer
Joined: Dec 2015
Posts: 313
Likes: 27
From: DFW TEXAS
Thread Starter
Intermediate
Joined: Oct 2015
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I don't suppose you know how it compares to flows sound wise? Yes I've read reviews and YouTube videos don't show much through mic and speakers...
Racer
Joined: Dec 2015
Posts: 313
Likes: 27
From: DFW TEXAS
Well, to me over the years the Flowmasters seem to have more of a raspy sound to them. Again IMO Magnaflow has done this right. When I go WOT the MagnaFlow sounds great. I will try and get ya a video mañana. But it will be over speakers so not sure how much it will help ya.
Melting Slicks
Joined: Sep 2008
Posts: 2,360
Likes: 59
From: San Jose California
X pipe will not help your drone.
If you want loud and no drone, go with the Borla s-type II axle back.
The ATAK is even louder, best overall exhaust I have tried.
Your best bet is to Go to a corvette get together and listen to some for yourself.
DJ
If you want loud and no drone, go with the Borla s-type II axle back.
The ATAK is even louder, best overall exhaust I have tried.
Your best bet is to Go to a corvette get together and listen to some for yourself.
DJ
Race Director
Joined: May 2006
Posts: 12,973
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From: SOFLA
2016 Corvette of Year
2015 C6 of Year Finalist
No it won't help at all. I went that road, I ended up switching to Corsa sports with long tube headers. Perfection to my ears.
Nothing you do, even dynamat will get rid of the drone.
Nothing you do, even dynamat will get rid of the drone.
Racer
Joined: Dec 2015
Posts: 313
Likes: 27
From: DFW TEXAS
Burning Brakes
Joined: Mar 2012
Posts: 836
Likes: 43
From: Killeen Texas
This may be type of exhaust specific, but the drone on mine got louder after a few hundred miles. Maybe w/a few heat cycles & what not. I have long tube headers, catted x-pipe & dual mode Akrapovic Zo6 exhaust. The drone is noticeable when it's closed at 1500-2500 RPM. I didn't notice it much until a few hundred miles after the installation. There are no leaks, everything is tight & the tune is spot on. When the exhaust flaps are open, it just sounds like a race car so I don't care at that point because Jekyll is gone & Hyde has taken over. The closed mode is mostly for my wife, so she will get in the car to go out- lol.
Last edited by dmoneychris; Jan 24, 2016 at 06:31 PM.
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Random update:
Took the top down today and this 6tg gear "drone" is actually a very pleasing sound. I guess it just doesn't resonate right with the top up.
That sound deadening idea would actually work it seems.
Took the top down today and this 6tg gear "drone" is actually a very pleasing sound. I guess it just doesn't resonate right with the top up.
That sound deadening idea would actually work it seems.