1969 Firebird - Waldron Glass pack mufflers

455 Firebird convertible with 12" heavy duty glass packs. Exhaust flow is "OVER" the muffler center tube louvers. THESE ARE LOUD!

Category:

Autos & Vehicles

Tags:

• mufflers
• firebird
• pontiac
• performance
• exhaust
• waldron
• loud

[budmorgan23]

I have a '79 Firebird with a 403, the compression is 8:1 I believe. What would you suggest for the meanest, loudest sound?

[WaldronExhaust]

If you still have the catalytic converter, nothing you do will make it as loud as this car. The converter with NO mufflers will not be as loud as this car. A "high-flow" cat will allow for a louder exhaust note. A straight-through muffler will typically be loudest. In most applications, the shorter the muffler, the louder it will be.

If the converter has been removed, use short glass pack mufflers or "race" mufflers for the loudest sound. Check local laws! I'd use 2 1/4" pipes on that engine.

[clutchac]

I have a question, I have a 1970 cadillac coupe deville, automatic, with a stock 472 and 375 horses, I really want to put glass packs on it, do you think it would sound just as mean as this firebird?

[WaldronExhaust]

Your Cadillac won't be this loud if you use longer glass packs, but if you use short (12" to 16") glass packs it will come close to this sound (I am assuming your engine's compression ratio is about 10:1).

The tailpipes on this car are very short; I would assume that the longer tailpipes on your Caddy would also make a more mellow sound.

[Hysjulien69]

weres the balls to walls start??

[WaldronExhaust]

When we made the video, the engine only had a few miles on it and we were breaking it in gently. Now it's broken in but the car has a totally different system on it.

One of these days we'll throw this system back on and make some real noise!

[xsyex]

Man sh'e a beauty.......also I love the sound!!!

[shizy1]

nice car sounds good :)

[1997DodgeRam360]

My friends car is louder than this lmao.

[Gerbilinator]

Oh my god that sounds like a beast I'm getting an 04 mustang for my first car does anyone recommend getting glass packs for it?

[hitmanbloodmoney69]

Yea I think taking Ur converter off is illegal any were

[johnw893]

@WaldronExhaust there is not point in changing or removing a catalytic converter since they do not create back pressure so they do not effect the power or noise coming from an engine