Exhaust Cut-outs?
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Exhaust Cut-outs? - 8/15/2003 12:31:45 PM
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BlueStang
Posts: 54
Joined: 6/25/2003 Status: offline
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I was considering exhaust cutouts. Im thinking about the Mr. Gasket cutout with the cable for remote operation. I'd really prefer straight pipes but cant afford to get any tickets at the time. I was just curious if i mount them right in front of the catalitic converters, will the complete lack of back pressure cause problems or not? i have heard that some back pressure is needed, but id like other opinions. I can get the cutouts for $40 from Jegs. I know a guy with a muffler shop that can install them pretty much free. Im just wondering what everybody else thinks. Kyle
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Exhaust Cut-outs? - 8/15/2003 4:29:49 PM
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Dan04COBRA
 Team MF Member #420 Posts: 14534
Joined: 7/24/2003 Status: offline
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Backpressure..I hate that word!
No, backpressure is NOT needed at all. In fact, it's one of your worst enemies.
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Exhaust Cut-outs? - 8/15/2003 5:02:09 PM
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BlueStang
Posts: 54
Joined: 6/25/2003 Status: offline
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Alright they are going to be ordered tonight. Now i'll be able to blow those ricers off the road without even being in gear j/k. From what i've read, up to 15% hp increase is possible from stock, but i doubt it will be that much w/out headers. Kyle
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Exhaust Cut-outs? - 8/15/2003 6:45:01 PM
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Jugador1
Posts: 2963
Joined: 6/8/2003 From: United States Status: offline
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yeah...apparently its "exhaust velocity" thats necessary (as i saw in an argument that the jeepster had or something).
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Exhaust Cut-outs? - 8/16/2003 3:37:22 PM
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Dan04COBRA
 Team MF Member #420 Posts: 14534
Joined: 7/24/2003 Status: offline
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A friend of mine put a single exhaust cut-out before his cat, he had edelbrock headers...he dyno'd an extra 22RWHP & 8RWTQ with the cut-out open.
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Exhaust Cut-outs? - 8/16/2003 6:42:23 PM
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jeep45238
Posts: 2199
Joined: 3/31/2003 From: United States Status: offline
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Think about it....everything you do to this air pump known as a motor revolves around getting air in and out faster and more effeciently.
Backpressure is just what it sounds like, the exhaust being restricted and causing the motor to be "choked". How can this possibly be helpful?
Kyle, I'd have the dumps welded right after the cats (so E-check can't rag on ya), or if you wanna play it risky, before the cats. It'll be like open headers.
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Exhaust Cut-outs? - 8/16/2003 7:54:53 PM
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BlueStang
Posts: 54
Joined: 6/25/2003 Status: offline
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Hey thanks everybody. Dan02gt, that gain is awesome, I dont have headers now but i 'd be happy with anything close to that. Jeep, ya, im not sure where im going to put them yet. I know the people who do the e-check around here are normally dumbasses who couldnt care less if the car passed or fails. i think about it. Kyle
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Exhaust Cut-outs? - 8/17/2003 1:08:44 PM
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Dan04COBRA
 Team MF Member #420 Posts: 14534
Joined: 7/24/2003 Status: offline
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[QUOTE=BlueStang] Hey thanks everybody.
Dan02gt, that gain is awesome, I dont have headers now but i 'd be happy with anything close to that.
Kyle [/QUOTE]
For the money, if you can deal with the noise.....it's the BEST bang for the buck mod available. I did the math with my friends HP gain and it was alittle over $1.30 per HP...awesome deal if you ask me! Hahaha
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