Droooooooooooooone @ 2000rpm + muffler ???'s

B

Boss 351

Here sthhhhhhhheeeve take a picthh of my man flowe

Jul 13, 2003

2,433

23

48

Canada

Apr 11, 2011

#1

• Apr 11, 2011

• #1

Hi all! I think I have 2 high flow cats on aftermarket 2.5" H-pipe, and Flowmaster 44's with 3" tips welded to the tailpipes.

I just got my Flowmaster 2.5" tailpipes and I'm wondering about replacing the mufflers with something a little less noisy perhaps. The drone is very loud at 2,000rpm and this car will be used on long hauls (6-7hour highway drives) so it would be nice to have it seem a little more tame lol... Any suggestions, sound clips? Many thanks...

Sorry I have no video of the sound that can give a good idea, best I have is:
YouTube - Sitting at idle
Previous owner's video (not mine and yes I removed the cobra badges) lol
YouTube - Just bought this thing...

 

Mintsick

10 Year Member

Jan 6, 2007

589

39

68

West Lafayette, IN

Apr 11, 2011

#2

• Apr 11, 2011

• #2

A straight thru muffler would tame the drone a bit I feel, I had a set of flowmasters on my car when I bought it and then switched to a straight thru pypes muffler and there is nearly zero drone but still sounds great.

 

FastDriver

I was uncomfortably high & wearing a helmet

SN Certified Technician

Sep 5, 2001

6,086

2,689

224

Vass, NC

Apr 11, 2011

#3

• Apr 11, 2011

• #3

Dynomax superturbos if you want a quiet muffler.

 

85_SS_302_Coupe

it sucks (I know) to be on the receiving end

15 Year Member

Nov 11, 2003

6,945

1,598

223

Northern KY

Apr 11, 2011

#4

• Apr 11, 2011

• #4

Stick with straight through/turbo style mufflers for lower drone at cruise speeds. Another thing i've read is if you run slightly different length inlet pipes into the mufflers it'll cut down on drone but i have nothing to back that up with. My Magnaflows are about as civil as i've ever heard at cruising speeds, while still having enough growl to sound good. I don't have to yell to talk to a passenger or on the phone, and i don't have any carpet or sound deadening in my car either so that should say something.

 

1bad67sbf

Active Member

Nov 24, 2010

674

1

29

N. VA

Apr 11, 2011

#5

• Apr 11, 2011

• #5

FastDriver said:

Dynomax superturbos if you want a quiet muffler.

Click to expand...

thats the catback my car has, lol. that sucks!!!. my car is a roller so i have no idea how mine will sound but this is not making me feel to good

 

KHibbs

Member

Jan 11, 2011

41

0

6

Boston, MA

Apr 12, 2011

#6

• Apr 12, 2011

• #6

I have the Bassani exhaust in my lx with cats and it has a serious drone around 2K which is tough with 3.73s b/c it means that is right at 40 mph in 4th and between 65-75 in 5th.....

I just got the car and need to figure out what my options are because an hour or two on the highway like that could be pretty painful. I have done some sound deadening and it made the car quieter but there isn't much you can do when going past the 1900 - 2200 range.

I am wondering if a different muffler can solve my issues or if that is just a function of the gearing and anything is going to be loud right at 2k... I have always been a BIG fan of Magnaflow and could see doing a set if I knew there was going to be a difference.

KHibbs

 

B

Boss 351

Here sthhhhhhhheeeve take a picthh of my man flowe

Jul 13, 2003

2,433

23

48

Canada

Apr 12, 2011

#7

• Apr 12, 2011

• #7

I've heard the thrush super turbo oval mufflers, they are very quiet and would remove any drone but the issue is all or nothing (all drone + nice sound vs no drone + no sound)...

After some research (google) I've heard good things about Borla.

 

Notchbck93

New Member

Dec 9, 2003

422

1

0

IL

Apr 13, 2011

#8

• Apr 13, 2011

• #8

I went with these and I love them. No drone, great sound and quiet cruising. Don't get me wrong, you still know it's V8; they are quiet enough when you need them to be, but will still get plenty loud under WOT.





Borrowed from Jeg's site.

http://www.jegs.com/p/Dynomax/Dynomax-Ultra-Flo-SS-Mufflers/744882/10002/-1

 

85_SS_302_Coupe

it sucks (I know) to be on the receiving end

15 Year Member

Nov 11, 2003

6,945

1,598

223

Northern KY

Apr 13, 2011

#9

• Apr 13, 2011

• #9

It may just be my car but i think full length headers really cut down on drone. Most cars i hear with shorties are louder than my car.

 

SteedaGT9150

Advanced Member

Nov 10, 2004

1,351

59

68

Maryland

Apr 13, 2011

#10

• Apr 13, 2011

• #10

Magnaflows.

/end thread

 

Chrome_Rust

Member

Dec 5, 2008

530

1

17

Findlay, Ohio

Apr 13, 2011

#11

• Apr 13, 2011

• #11

To be honest I dont really notice a drone in my car with 2.5" basanni X and 3" Mac catback.... pretty mellow at highway speeds....