jughead

I have a custom exhaust setup but its too damn loud for me....
Basically it boils down to what will reduce the exhaust noise the most for me the driver. Obviously inside and outside are almost the same but idk I'm thinking apexi ws2 or vibrant flat black mufflers. 300$ vs 120$ or so.

Is there a difference between the decibel output I'll hear?


engine:
jdm b18c, skunk2 intake manifold, aem cai, msd dist/wires

exhaust: 2.5 inch piping, random technologies high flow cat, resonator (dont know brand), skunk2 n1 muffler 2.5 inch

JOE_DC4ever

If you want a real quiet system, go with OEM

But if that isn't what your going for, you can go with a custom system with double resonators.

For you the driver, it will help if you put sound deadening material down under your carpet as well.

I have the Apexi WS2 on my GSR and it is almost too quiet for me, but it isnt my DD so i dont mind the noise when i do drive it.

jughead

Under the entire carpet? What would give more noise reduction, the muffler change or another resonator? Not going oem unless i really have to.

Spawne32

iTrader: (3)

step 1 - line the inside of the car with edead45 or 85 and or carpet padding from home depot in key locations in the back of the car and behind the door panels/interior panels.

step 2 - magnaflow perforated core resonators



getting ready to install my exhaust which will consist of a catco 2.5" cat, 2.5" mandrel bent cat back, magnaflow 18" glasspack resonator, and dynomax superturbo muffler on the end.

PatrickGSR94

iTrader: (1)

As I found out the hard way, eDead 45/85 butyl sheets don't do jack for reducing interior road/exhaust noice (high frequency). The butyl is more for deadening low frequency vibrations. The eDead foam sheets is what you need for reducing high frequency noise infiltration into the cabin.

Spawne32

iTrader: (3)

depends on where you put it, the butyl is good at reducing noise in places where you cannot afford to have thick foam padding

PatrickGSR94

iTrader: (1)

I don't know, I lined the entire floor, front to back, side to side, rear side panels, door panels, and rear bulkhead with 125 s.f. of eDead 45 several years ago, even doubled it up in some places. Yet my car is still loud as ever inside. Even my 195/55-15 tires loud as FAWK on the highway.

I really need some of the foam stuff, like really bad.

Spawne32

iTrader: (3)

well most of the noise actually comes from the fact that its a hatch, alot of it comes from the rear wheel wells and the trunk, so going super thick with the padding in those areas is where it counts the most, lining the door panels with the 45 made a huge difference in the sound that came through the doors for me, but still get tons of noise from the rear of the car, it also doesnt help that my rear interior panels are still loose..

jughead

Ok but a muffler change or resonator for a quick result?

Spawne32

iTrader: (3)

muffler change ideally, and keeping your cat

jughead

alright but which one vibrant flat black or apexiws2?

Spawne32

iTrader: (3)

apexi ws2 will be the quietest

jughead

ah by how much though? a nosehair? 200$ worth? Thats almost two more resonators.

VTEC_PRODUCTION

get the vbrant whisper resonator and vibrant flat black and it will be nice and quiet...

jughead

i assume you mean vibrant ultra quiet resonator, never heard of a whisper resonator

VTEC_PRODUCTION

my bad...thanks for the correction

slimsdizz

just get a twin loop muffler you can get a knockoff on ebay or find a used mugen on ebay if you want to maintain power have an awesome look and reduce noise get a twin loop
if you want super quite I've got a apexi muffler here you can pm me about very quite.