Quieter exhaust?

[supraguy@aol]

I was looking to quiet down my exhaust quite a bit, and was wondering what I should use. I have a 3"dp going into a 3" cat, and then back to a generic 3" N1 type can via 3" piping. Would placing a bullet style muffler inline after the cat give me a significant reduction in sound? Or, should I really be considering an oval-style muffler instead? When a muffler is called a 'turbo muffler"(like dynomax or magnaflow, etc.), is it really acceptable for turbo use? I would like to get it down to only marginally louder than stock if possible.
Thanks.

 

[cuel]

I had a similar problem on mine. Put a magnaflow 24" long, 3" diameter, glass pack in where the stock resonator should be. Made a considerable difference in the sound level and tone. 87 n/a.

 

[themadhatter]

well like cuel said a inline glasspack like an bullit is going to quiet it down a fare amount but its still going to be much louder then stock. If you really want it to be just a tad louder then stock i would suggest just getting a dynomax turbo muffler.

 

[tekdeus]

The bigger the muffler, the more noise reduction. I opted to add a 3" vibrant oval muffler installed near the differential, before the final muffler.

 

[super.secret.supra.club]

http://www.hksusa.com/images/?id=1097

i thought about getting this one. might help you.

 

[dugums]

My setup is super quiet at idle/normal cruising. I have a recirculated DDP, 3" high-flow cat, and a Tanabe SMH cat-back.

The Tanabe system has a large resonator and muffler. I have seen similar resonators available for $50 and up.

 

[jdmk3_87t]

Greddy SP

 

[starscream5000]

935 sells a muffler for what you need, I've even heard them on 4 banger domestics around here, a lot better sounding than the other fart cans most of them use around here, nice and mellow sounding.

 

[supraguy@aol]

Well, here's my ultimate plan:
I want to go from a recirc DP which ends in a small flex section, from there to the cat, which will end in a 3pt flange. Then a nice quiet freeflow muffler which will be flanged on both ends so that I can take it out at my discretion. I can simply have a matching-length straight pipe to replace it at will. From there, the piping will head back towards th rear, where it will become a 3" Y-pipe to 2 seperate 2.5" outlets, each feeding an N1 type muffler. Both mufflers will be placed together as opposed to dual exhausts. This way, it'll look a bit different, and I can adjust the sound level with the use of the primary muffler plus the two N1 inserts. If I use 2.5" inlets mufflers at the back, I think they can both fit side by side, and still not cause much exhaust restriction, in fact, less restriction than a single 3" unit.

 

[suprabad]

Is it the louder than stock sound that's bothering you, or is it the droning sound the exhaust makes at low rpms when you step on the gas or going up a hill at low rpms?

For me it's the droning sound that fills up your ears when I gass it at low rpm. It seems to go away as the motor transitions into the higher rjpm range.

 

[supraguy@aol]

I do get that droning, but I wouldn't mind it quiter at all speeds.

 

[super.secret.supra.club]

BORLA!

 

[suprastanger507mgte]

Greddy SP or the Tanabe that looks similar.