Best Muffler

carmaneddy · carmaneddy's Garage

I have a 3.2L in my 1972. I have stainless steel exhaust pipes (no Cat). Prior owner had sport exhaust with twin pipes under rear valence. What is the best (low restriction) muffler that will bolt up and exit single outlet from stock location on Left.

I am considering fabricating my own, by using a piece 4" pipe as a muffler with a drilled 3" pipe as an outlet. Anyone have experiance with this sort of project?

Az911 · 01-15-2004, 04:59 PM

If you can handle a loud exhaust just hollow the stock muffler out. I know a guy with that done and it sounds great plus it adds a few hp

-Steve

Randy Webb · 01-15-2004, 05:13 PM

Do you have the stock injection, brain, etc.??

Generally, a stock sport muffler is best, but loud. See Az911's post. Serach for insturctions here and with Google.

Steve@Rennsport · 01-15-2004, 05:13 PM

Hi:

I would strongly advise you not to cobble together some homemade exhaust; these engines are VERY sensitive to exhaust tuning and the throttle response, HP, and torque will really suffer.

If you want a good high-quality stainless steel Sport muffler that works, I'd suggest either a Monty Muffler (lifetime guarantee) or a Dansk; both in a dual-inlet/single outlet version.

Az911 · 01-15-2004, 05:23 PM

Why not go with a dual in dual out sport muffler. I got mine from Partick Motorsports.

m325ix · 01-15-2004, 06:42 PM

B&B Triflow!

Tim Stevens · 01-15-2004, 07:08 PM

I have GHL on my 85 with a 3.2 L and I love it. It sounds great. Good luck - Tim

carmaneddy · carmaneddy's Garage

Thanks for the input. The car is chipped from autothority. I want single outlet to retain Stock look. If I use a stock muffler and hollow as suggested. How do I tell which year to go with are the flanges different and do they have different dimensions? My header ID is 1 3/4".

JackT · 01-16-2004, 05:46 AM

I have a Bursch 1 in 1 out muffler that is 1 year old. The sound is a deeper sound than stock. I replaced my heat exchangers with SSI so had to get the 2 in 1 out muffler. It is one year old. I will sell it to you for $190.00 plus shipping if you are interested. Just a warning though, if you are doing it for performance, dont bother. I do not think it does anyting but increase the sound. It is not anywhere as loud as the dual out performance mufflers.

m325ix · 01-16-2004, 05:49 AM

carmaneddy, can you post some pics of your car please?

IROC · IROC's Garage

Az911 - if you don't mind - how much was the sport muffler from Patrick? I checked their website and couldn't find it?

I have a dual-in, dual-out Dansk right now and would like something more socially irresponsible (louder).

Mike

jmz · jmz's Garage

a guy named Kurt Pressler used to fab. up some pretty nice exhausts that were quiet and added hp to on the dyno.

seems those who want more sound do the flow-master type of muff.

Az911 · 01-16-2004, 08:09 AM

Quote:

Originally posted by IROC
Az911 - if you don't mind - how much was the sport muffler from Patrick? I checked their website and couldn't find it?

I have a dual-in, dual-out Dansk right now and would like something more socially irresponsible (louder).

Mike

The mufler was $367 with tax and it's top notch. If you want I can take more pics for you.

IROC · IROC's Garage

Steve,

Thanks for the info (sounds like a good price) and the offer of more pics. I don't think the pics will be necessary. I'm drooling enough as it is. :>)

Mike

carmaneddy · carmaneddy's Garage

DrewT are you selling the 2 in 1 out. Will it bolt up to my car.

See Pics.

I will post more pics of my car from bare metal to current status at a remote link--as soon as I figure out how.

Eric Coffey · 01-16-2004, 02:44 PM

Stock? Nah, this is what you really need:

Az911 · 01-16-2004, 05:03 PM

Quote:

Originally posted by Eric Coffey
Stock? Nah, this is what you really need:

Is that a JWE/Pete Weber setup? If so the current price = $3300.

Randy Webb · 01-16-2004, 05:11 PM

Philip Smith's induction/exhaust book has a nice section on the convergent/divergent cones -- it seems they work by waveform interference.

Eric Coffey · 01-16-2004, 06:53 PM

Quote:

Originally posted by Az911
Is that a JWE/Pete Weber setup? If so the current price = $3300.

Yep, Pete Weber "phase 9" silencers and cross-chamber. Pretty much the best thing going IMO. Gives you basically the same performance as a straight pipe, while keeping the noise under 100db.
headers/straight pipes = >115db, headers/phase 9's = 105db, headers/phase 9's/cross-chamber = <95db).

That $3300 is mostly in the headers. You can get just the phase 9's for about $550/pair.

JackT · 01-17-2004, 04:58 AM

carmaneddy, my muffler is a 1 in 1 out, sorry.