Bee Jay

I bought this Magnaflow muffler at the Pomona Swap meet last weekend. It's a dual 2.5" in and dual 2.5" out. The muffler only weights 15lbs. So I decided to replace two 20lb Flowmasters with one 15lb Magnaflow for a weight savings of 25lbs. Only problem is that I'm back to being too loud. But at heavy and wide open throtle, hot damn it sounds good. Once again, everyone thinks it sounds good except me the driver. Way too loud. What do you think of this? I'll try to get a sound clip tomorow.
Bee Jay

Tom1701

I like the center exit

BTAL

Bee Jay, you're more "weight conscience" than a teen-aged girl. j/k

Seriously though, I can't see the extra 25# being that much of a difference, especially considering all the other weight you've already removed.

It does have an different look though.

Bee Jay

I actually wanted to do an off to the passenger side exit ala Porsche 928. But everyone I ran that by thought it was stupid and silly, especially my muffler guy.
Here is a sound clip:
http://www.youtube.com/watch?v=SlA1-JHz7pA

75+78 Corvettes

interesting setup. What about putting a resonator or something upstream to mellow it out a bit more.

Bee Jay

I wish. I've been going to the gym almost twice a day for four months and walking 3 miles 3 to 5 times a week, and I've lost 0 pounds. I'm buff and solid, except the keg on top of my six pack. They keep saying I need to modify my eating habits. No way!
Bee Jay

MotorHead

I had to put in Car Chemistry baffles in mine, it quiets it down nice but not sure how much HP I lose. They claim they don't lose any HP but anything that reduces the exhaust noise is going to cost HP, probably the reason I didn't make 500RWHP

I think I have the 3 baffle version this is the 2 baffle one, they can go in the header collector or downstream some

Bee Jay

Does it do a good job of quieting the noise down? casue it sure looks light. I think my header collectors are 3".
Bee Jay

Bee Jay

I drove the car to work this morning. The sound actually mellows at speed. It's just a loud idle, slow cruise, and load. WOT is rediculous and violent. But around 2500 rpm it just smooths out and mellows. Everyone loves the sound, everyone.
Bee Jay

MN-Brent

BeeJay
Your car is a tapestry, and will probably never be a finished item.

Seems to me, anytime you can lose weight, its good thing, especially if it is mass that is not centralized. Everything adds up.

Where is the video?

MotorHead

The baffles do a good job of quietening it down

Bee Jay

Been working on it 31 years. Give me another 30 years. I'll finish it. Maybe I can get a video done tomorow. A pound here, a pound there, pretty soon I'll have it down to 3000 lbs. I doubt I'll ever catch Panic.
Bee Jay

Shark Racer

Glad to hear you think it's too loud - I was gonna use a similar muffler on my truck to convert it to true dual. Don't wanna scare the heck out of everyone... or maybe I do. That muffler is way back there.

Hmmmmmm...

They do have versions with longer bodies.

I think it might work okay on my truck as that will have a few more feet of tailpipe behind it.

Maybe I'll go by the muffler shop tomorrow and see if they can do a a trick setup on the car.

Lt1er

Warm weather has brought the Harleys out around here and they would make your Vette sound quiet

Nice job! Down turned pipes make more noise because of reflection off the pavement. Doing a straight out or up turned behind the rear makes for less interior noise. My friend has pipes in a chevelle that dump down over the back axles and it vibrates the car like a speaker box.

I would mount the muffler lower and keep more heat away from the gas tank and run the tips past the rear bumper

CFD E59

I agree a resonator down stream to change the pitch, magnaflow has them with no back-pressure....

airtime

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bee jay here is my 3" exhaust with the longer 20" magnaflow's. they are deep and quiet at idle and cruise but sound great under load. they have a smooth tight tone. i think you would like these. i have a small block camaro with stock manifolds with the shorter 14" magna flows. they sound like what you have load as hell at full throttle and loose they tightness too. sound kinda like a glass pack under full throttle. i saw a guy's post on here complaining about the glass pack sound from his magnaflow's and another poster had a sound clip with the 20" long magnaflow's on a chassy dyno. they sounded great and no glass pack sound. these were two seperate mufflers and not a single like what you have. mine has full lemgth headers and 3" duals all the way back. no h or x pipe. the installer said it would be loud as hell with those big 3" pipe's but he was wrong. very little interior noise. i love it. going to pull those loud as 14" magnaflow's off my camaro and replace them with the 20". vette motor is a 489 stroker, 10 to 1 compression solid lifter cam so i am filling the pipes up with plenty of gases to be loud in case your wondering. hope this helps.

airtime

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airtime

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as you can see 3 " all the way. last pic is the 3" i installed into a factory exhaust tip. next to it is the pittifull factory exhaust as a comparision.

airtime

looking up my order number, i think they are 18" case length and 24" total. sorry for the miss info.

airtime

my muscle car friends say it is too quiet for them. they run the super 44 flowmasters. they are deep and loud. interior noise is high with flowmaster's also.