Muffler Specs

ath10702 · 09-11-2006, 05:44 PM

I am looking to buy a Flowmaster Muffler. I heard the fourty series sounds best if you still have the stock 4.3L six in it. I have not had the chance to look up the piping on my muffler, ie. sizing, offsets/centers, inlet/outlet sizing. I know i seem like an idiot, but what are the specs on the stock mufflers? And does any one know where i can find a high flow catalytic converter?

gchemist · 09-11-2006, 07:07 PM

Check with www.summitracing.com or www.jegs.com for high flow cats. I use a Catgo cat on my truck. Sounds very nice and even better when hollow. Hollowed by accident.

The 40 series on a V-8 is nice. I'm not so sure on a 4.3.

BudRacing · 09-15-2006, 05:43 PM

Go With the 50 series. The smaller your engine, the quieter you want your muffler. 50 series arent too quiet though, they've got a nice growl. Check out my sig for clips. BTW, the clips are after i first put it in and before it was "broken in." It sounds even better now.

gchemist · 09-17-2006, 08:57 PM

Cool clips. How is the sound at highway speeds.

After seeing the clips, I would install a 50 series. The exhaust on my 96 is still stock. So next year, its out the door!! Highway speed noise probably won't matter since the stereo will be thumping!!

BudRacing · 09-21-2006, 05:06 PM

Highway noise isn't bad at all unless you're passing with your foot on the floor. I'm thinking about getting QuietCar undercoating to smooth out the ride a bit. Not because of the muffler though. ROAD NOISE

09-11-2006, 05:44 PM	#1
ath10702 Registered User Join Date: Sep 2006 Posts: 1 Location: User is: OffLine	Muffler Specs I am looking to buy a Flowmaster Muffler. I heard the fourty series sounds best if you still have the stock 4.3L six in it. I have not had the chance to look up the piping on my muffler, ie. sizing, offsets/centers, inlet/outlet sizing. I know i seem like an idiot, but what are the specs on the stock mufflers? And does any one know where i can find a high flow catalytic converter?
	[Reply w/Quote]

09-11-2006, 07:07 PM	#2
gchemist Registered User Join Date: May 2006 Posts: 356 Location: Austin User is: OffLine	Re: Muffler Specs Check with www.summitracing.com or www.jegs.com for high flow cats. I use a Catgo cat on my truck. Sounds very nice and even better when hollow. Hollowed by accident. The 40 series on a V-8 is nice. I'm not so sure on a 4.3.
	[Reply w/Quote]

09-15-2006, 05:43 PM	#3
BudRacing Molon Labe Age: 23 Join Date: Aug 2004 Posts: 4,924 Location: Statesboro, Ga User is: OffLine	Re: Muffler Specs Go With the 50 series. The smaller your engine, the quieter you want your muffler. 50 series arent too quiet though, they've got a nice growl. Check out my sig for clips. BTW, the clips are after i first put it in and before it was "broken in." It sounds even better now.
	[Reply w/Quote]

09-17-2006, 08:57 PM	#4
gchemist Registered User Join Date: May 2006 Posts: 356 Location: Austin User is: OffLine	Re: Muffler Specs Cool clips. How is the sound at highway speeds. After seeing the clips, I would install a 50 series. The exhaust on my 96 is still stock. So next year, its out the door!! Highway speed noise probably won't matter since the stereo will be thumping!!
	[Reply w/Quote]

09-21-2006, 05:06 PM	#5
BudRacing Molon Labe Age: 23 Join Date: Aug 2004 Posts: 4,924 Location: Statesboro, Ga User is: OffLine	Re: Muffler Specs Highway noise isn't bad at all unless you're passing with your foot on the floor. I'm thinking about getting QuietCar undercoating to smooth out the ride a bit. Not because of the muffler though. ROAD NOISE
	[Reply w/Quote]