fbgh2o

I am running a 3" Lindsey system with a 14" Magnaflow muffler and a universal catalytic converter. I recently swapped out the resonator that Lindsey sells (Outlaw?) and installed the catalytic converter hoping to quieten the car a bit. There is no noticeable difference.

I am not looking to kill the sound, but just deaden it a bit for the long distance drives. Any thoughts on how one might achieve that result? A longer muffler or a different muffler?

Many thanks

odurandina

we've talked about resonators and some of us have installed them and the results are amazing.... get an SLP Loudmouth like this one from Summit.... mount it just behind where your cat used to be.... will work wonders (by cleaning up the sound) with the existing wastegate and magnaflow.

http://compare.ebay.com/like/400297707394?var=lv&ltyp=AllFixedPriceItemTypes&var=sbar

zerMATT951

I'm running a Flowmaster 50 (quieter than the 40) with my LR 3" and no cat. I think that the sound is completely reasonable, but without a back-to-back comparison, I realize that's completely subjective.

chrenan

I'm running a Lindsey 3 inch system, no cat or resonator, and a Pypes M80 straight through exhaust. My car is loud and drones, also pops on over-run, and is really loud when the wastegate opens.

The best thing I find for keeping it quiet is having my helmet on at the track.

gruhsy

Go for a drive in my car.......your car will feel very quiet after that

dillon410021

I like to disturb the peace!

pontifex4

Fergus, is it loud only when you coast, or does the drone happen at steady speeds, too?

That new exhaust that you brought down for my Audi definitely gets loud when you coast at low RPM. I'm probably going to want to figure out a fix for that.

odurandina

btw, i had a thread that got off to kind of a rough start...

then a few people decided to try the SLP in concert with the Magnaflow.... first a couple guys, then a few more.

all positive reviews and a couple of clips on page four....

https://rennlist.com/forums/924-931-...-heaven-4.html

Dave W.

Have you checked for exhaust leaks at the flanges? That'll cause some drone in any exhaust.
I'm using a 18" long Magnaflo with the 9x5" oval case and it's very quiet on a full 3" exhaust and hi flow cat. No resonators. I also avoided installing a megaphone shaped muffler tip.

ehall

Buy a 996?

David Floyd

Agreed, I added a Dynomax Bullet muffler in the cat section of my SFR exhaust and that cured the drone for me

blitz951

I have the same problem and was considering SFR resonator since it bolts right up. Has anyone tried it?

Black51

To the OP, are you talking about the 3k rpm drone?

fbgh2o

No it's seems louder across the spectrum of engine speeds. However is it worst betweem 2400 and 3000 across the board. This makes it really intrusive on highway cruise.

JohnKoaWood