Exhaust system options

[Gtpdz]

So I'm really getting tired of the full 3 inch exhuast that came with the car, right now it has only a glass pack resonator and a straight through glass pack muffler. Not bad at city cruising but high way speed the drone is just terrible...

So whats the option here? Getting a baffled resonator/muffler?

Or any chance out here someone still have a stock set?

Or should i just pull the trigger and build a smaller piping one from scratch?


I am planning to make it more daily driven friendly, not looking for power figures.

Thanks

 

[idreamidrive]

You could look into doing a Helmholtz midpipe and it would take away the drone.

 

[Gtpdz]

Interesting, can you shed some light into this set up? Did you try make one yourself?

 

[idreamidrive]

I have not, but I just saw that Good-win-racing.com is selling some for the NC miata that reduced the drone by 50db. click

I thought it was interesting suggestion to try out. I guess you need computers and sound equipment to figure it out though.

 

[galantgti]

How about a varex muffler in between? Those are available with remote controlled valves, so you can adjust the valve (and sound) while driving around and without even getting out of the car.

 

[KiNgMaRtY]

You could call RRE and ask them for one of their resonators. They don't tapper inside, they are a full 3". I have one resonator and their Magnaflow muffler that they use, and I feel my car is way to quiet.

 

[tektic]

I'd love to try one of those chamberd resonators. I should probably start with a real muffler though.

 

[ApexHunter]

2nd the RRE exhaust. They are quiet, and they perform well.

The placement of the resonator(s) is pretty important to eliminating cabin drone. Consider putting your resonator in the same location that the manufacturer uses, is a good starting point.

We've been busy at work developing a drone-free version of one our systems that utilizes large diameter piping...and on an NA engine no less, so no turbo to help quiet things down. Fun stuff.

 

[desant78]

Also check out synapse. They sell a variety of Helmholtz resonators.

 

[Coltsfan]

If you just add a 2" restrictor to your tailpipe it will make a world of difference. I had restrictors in my dual outlet muffler on my Colt that were held in by stainless steel screws so I could easily remove them at the track.

Eventually I got tired of having to do stuff: I put a throttle plate in one of my dual tailpipes, and mounted an old vacuum advance actuator on top of my muffler. I ran a length of air shock hose from the manifold to the muffler actuator and viola! One tailpipe is closed unless manifold pressure is zero or above.

 

[prove_it]

Quoting Gtpdz:
So I'm really getting tired of the full 3 inch exhuast that came with the car, right now it has only a glass pack resonator and a straight through glass pack muffler. Not bad at city cruising but high way speed the drone is just terrible...

So whats the option here? Getting a baffled resonator/muffler?

Or any chance out here someone still have a stock set?

Or should i just pull the trigger and build a smaller piping one from scratch?


I am planning to make it more daily driven friendly, not looking for power figures.

Thanks




PM coming about my 2.5in CMPE exhaust, catback no muffler.