serik21

just did headers and engine mounts on my car, car already had b&B exhaust with rasonator had slight drone before headers now its more pronounced any body have a solution for it, tried searching but nothing really came up, thinking maybe go x-pipe or something i dont mind it being loud, just the drone around 1400-1800rpm is killing me

CancerJCC

iTrader: (4)

X Pipe will make it worse. You can add the "mini-muffler" front pipes from B&B and that will help some.

I love how loud the B&B is and I can stand to not be in 6th @ 65 on the highway..."Sir I was driving around my drone @ 90, sorry".

Jon04CTSV

Downshift

scatillac

iTrader: (12)

Using an X-pipe with Dynomax or Moroso race bullets behind the X might do the trick.

whisler151

This is exactly what I would do if I found myself at the "drone spot".

Of course you can always open the sunroof or windows and turn up the stereo...that helps.

lollygagger8

iTrader: (7)

Exactly. Run it in a different gear.

B&B makes some little cones (vortex maybe? can't remember name) that you can stuff in front of the xpipe/resonator. Call em and ask em about em. They are supposed to cut down on the drone.

BudRacing

iTrader: (3)

Just noticed this today, but some range rovers have harmonic balancers on their exhaust pipes right after the cats to keep unwanted exhaust vibrations down. I wonder if this could work for drone in others.
It's basically a flat bracket that's welded to the pipe and has a weight bolted to it.

Strokinit383

iTrader: (22)

Just order a set of the resonator front pipes....or pull it off and put the stock exhaust back on!

07CTS-V

iTrader: (6)

I have the B&B supplied cones. They claim no loss in Hp and have the same flow because the total area of holes is larger than the cross sectional area of the pipe. They are supposed to be installed into the tips and welded on. I will never use them because I have cutouts and if you crack the cutouts just a small amount the drone is completely gone. I can send the cones to anyone who wants them. B&B sent them to me for free.

I have the resonator front pipes and they don't do anything for the drone.

serik21

07 how much you want for the cones?
I like my exhaust everything above 2k heck I wish it would be slightly louder just don't like it below 2k and wondering if there a fix other than being in a lower gear. Btw would x-pipe make it louder in higher rpms?

Twitch1

If you just did exhaust work, I would first check for a leak. This could make the drone much worse than it needs to be.
You can also try to change the frequency between the tailpipes. Put something in one of the tips (Brian's cone or make something). A small change in output can make a noticeable difference.

I can understand not wanting to drive around something, but a B&B is what it is.

serik21

No I had b&b for as long as a had the car. I always had the drone but when I put headers on it become more pronounced. I'll try thorwing something in one of the tips and see how it goes.

07CTS-V

iTrader: (6)

The X-pipe made my B&B a lot louder than with the center resonator. Tony is right about changing the frequency between the two sides, I was going to try installing a cone in only one side first with just a small tack weld just to see. I never got around to it before I installed my cutouts.

serik21 - Send me a PM with your address. I'll send them to you if you need me to, but B&B sent them to me for free because I called them up and said "My B&B exhaust on my CTS-V drones like crazy between 1600 and 2000 rpms." I would try to get a set that way first. Talk to Mike (888)598-3688.

rand49er

As an observer, I absolutely love the bold sound of a good B&B system. But, the drone is exactly why I ended up going with a Corsa.

Would whistle tips help?

JNR_Design

iTrader: (3)

Where are your tips exiting? I mean, do they extend beyond the rear fascia at all?

May sound funny, but it made a pretty good difference in one of my cars (not the V as the placement is fine) by extending the tip out a little...Not a huge difference, but notieable...If you have them exiting under the car (unlikely), it'll reverberate and really 'drone'.

btw - is this B&B a glasspack like a magnaflow and others, or a chambered muffler like flowmasters? Seems those really have a tendency to do that on these engines (and others) more than say a good turbo muffler...I'd say an H or X pipe *should* help a little too...

SoJersey05V

sell it and buy corsa and kooks... removed the corsa resonators and threw in an X and still never had drone even with the headers!

TheRooster

iTrader: (1)

Stainless works.