just put on flowmaster...
Post Fiend
Joined: Jan 2007
Posts: 7,021
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From: Almost Heaven
How well do those flow? As in, once you open up the leaker, how much of the exhaust gasses actually flow into it rather than the muffler?
Posting Guru
Joined: Dec 2006
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they work really well that vid i posted of my truck open headers was with my cutouts open
it would only be a tiny bit more restrictive than open headers
i have seen people gain more than 2 tenths at the track by opening up the cutouts and jetting up the carb to compensate
it would only be a tiny bit more restrictive than open headers
i have seen people gain more than 2 tenths at the track by opening up the cutouts and jetting up the carb to compensate
Thread Starter
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Senior User
Joined: Mar 2009
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From: metro detroit area...
i don't think i'm going with cutouts.... my aim is more towards durability and reliability, not racing and performance... I want to know that i'm going to drive it back after a day of mudding or trail driving, and not have to call a tow truck from the middle of nowhere... I don't really care what it looks like, sounds like or anything else as long as I know its getting me home
Posting Guru
Joined: Dec 2006
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that's why i love my truck i can drive it to the mudhole and drive it back it's never left me stranded and i can also take it to the drag strip and whoop up on some of the slower mustangs and camaros there
my cutouts havn't caused any problems with mudding or anything, i ripped one of my mufflers off in a hole 45mins away from home (it was because of how i had my exhaust routed not the cutout) and all i had to do was pop off the caps on the cutouts to equalize the backpressure instead of trying to find a way to cut the other muffler off (my exhaust is welded on) then i drove home and even drove past a cop with a radar gun and he didn't give me any trouble
well why did you put a flowmaster on it? 
my cutouts havn't caused any problems with mudding or anything, i ripped one of my mufflers off in a hole 45mins away from home (it was because of how i had my exhaust routed not the cutout) and all i had to do was pop off the caps on the cutouts to equalize the backpressure instead of trying to find a way to cut the other muffler off (my exhaust is welded on) then i drove home and even drove past a cop with a radar gun and he didn't give me any trouble
Laughing Gas
Joined: Dec 2007
Posts: 850
Likes: 1
From: Bethel Park, Pa
does anyone know how a 4.9l would sound with a ling glasspack in place of the original muffler with both cats in place with either a turndown or exiting out in front of the rear tire?
sorry lol
sorry lol
Laughing Gas
Joined: Dec 2007
Posts: 850
Likes: 1
From: Bethel Park, Pa
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Post Fiend
Joined: Jan 2007
Posts: 7,021
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From: Almost Heaven
300's are funny sounding beasts with cats. They can sound like a Rice Burner with a Flowmaster, but sound like a beast with the same Flowmaster, just minus the cats..?
Anyway, 300's sound horrible with glasspacks. Here's my youtube, check my 300 out. I have a lot of sound clips. YouTube - 300 I6 Short drive and Rev.
Senior User
Joined: Feb 2008
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Senior User
Joined: Feb 2008
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I don't drive any either of my trucks for more than five minutes at a time so the sound doesn't really get to me. Plus I like loud. 
We don't have inspections where I come from.
We don't have inspections where I come from.
Laughing Gas
Joined: Dec 2007
Posts: 850
Likes: 1
From: Bethel Park, Pa
6cylbill i love the sound of your truck, where do u live?
i wanna take off the second cat but in pa we got real strict emissions and idk if it would pass
i like the sound of your first system exiting in front of the rear tire, and being 20 years old i looove loud trucks, hell i got a 1400 watt peak 12 inch sub being powered by a 1500 watt peak mono amp behind my seat
looks like imma haveto get some cash together to do the exhaust right lol
i wanna take off the second cat but in pa we got real strict emissions and idk if it would pass
i like the sound of your first system exiting in front of the rear tire, and being 20 years old i looove loud trucks, hell i got a 1400 watt peak 12 inch sub being powered by a 1500 watt peak mono amp behind my seat
looks like imma haveto get some cash together to do the exhaust right lol
Senior User
Joined: Aug 2007
Posts: 364
Likes: 0
From: Ca
Kaster, don't know what engine you have but on a 302 you'd want to run 3" piping. You'll get a much better exhaust note over the stock piping. At the least, get 3" piping from the last cat back to the muffler. You'll hear the difference.