Mufflers

[63stick]

I have a full stainless exhaust system minus the mufflers for my 63 R1. I bought the system from Don Simmons back in 1990. Can't remember if he had the name Silvertone back then. At the time he only had one muffler and wasn't going to be getting anymore. Needless to say, I never put the system on the car, until now that I'm putting it back together. Somewhere along the way he got a new manufacturer. Any recommendations on mufflers. Anybody use Silvertone mufflers. He has 3 different ones.

[Gunslinger]

Much depends on the sound you want.  I’ve used both Flowmasters and Magnaflow.  Flowmasters will give you a loud, raspy sound that makes you think will shake or even break glass windows as you drive by.  Magnaflows give a lower, soft burble at idle and will open up much more as rpm’s increase.  
 

Go to each maker’s website.  They usually have a sample of the sound their products make you can listen to.  

 

[Dwight FitzSimons]

I have Don's medium-tone stainless-steel mufflers.  They are too loud for me, but that is a personal choice.  I am going with Walker Dynomax Quiet-Flow mufflers next time.  They are relatively quiet, but still low restriction.

--Dwight

Edited March 12 by Dwight FitzSimons

[John C]

I have Don's Quiet tone mufflers and I am very happy with the tone and the decibel level. They are really quite nice and I don't feel they impede the performance to any great degree.

                                  John C.

[63stick]

I'm thinking I want it heard before it's seen. How far before is the question I think. It's going to sit at my beach house and only really use it to go to some of the waterfront restaurants where all the muscle/classic cars go to show off/ be noticed.

[Geoff]

Check out SpinTech mufflers. Similar to Flowmaster's lineup they have different series (and shapes) ranging from mild to race. The flow through their design is great.

I had a model 3222 on a Mk1 Rabbit GTI and it was a hearty sound, all things considered. I am thinking of building my Avanti like so:
Custom long tube headers into a 3" collector, then down to 2.5" pipes with Silvertone's loud option between the outer rail and X-brace. Then cable/rod or electronically opened cutouts, with Spin Tech mufflers mounted somewhere aft of the frame kick-up.

That'll be four mufflers in sedate mode and only a pair of Silvertone loud for obnoxious mode. I mean I'm going to be an LS-based Blake, but that should still cause quite a stir. Plus, with Lee Z. doing his things, I might be able to substantially derestrict this build.

[Geoff]

I did put Silvertone loud mufflers on 63R-1025 August of 2021. It was loud! There were some type of glasspacks on it before those went on, but they had one baffle within (couldn't see through those mufflers). The former mufflers were loud but not as loud as the Silvertone ones.

Also, 1025 was an R3 prototype so I wouldn't know exactly how an R1 would sound but that combination was a raucous.