LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

cut-out or cat-back

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Old Feb 25, 2004 | 09:07 PM
  #1  
speedracer93z28's Avatar
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From: so cal
cut-out or cat-back

which is better for performance, let price play no role in your opinion. i have a cutout and i am going to get a cat-back which is better for hp and tq. thanks
Old Feb 25, 2004 | 09:37 PM
  #2  
96LT14u2Nv's Avatar
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From: batavia, ohio
id just keep the cutout for now if u are mostly stock. you are going to gain more from a open cutout than ANY catback.
Old Feb 25, 2004 | 09:57 PM
  #3  
JoeliusZ28's Avatar
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From: Detroit
you could always get both
Old Feb 25, 2004 | 10:25 PM
  #4  
Tair's Avatar
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From: Honolulu, HI
you will go slower by putting a catback on than running through your current cutout. you will lose both hp and tq. despite what some others may say, you don't LOSE tq at all by putting on the cutout, the tq shifts to the higher rpms. I gained a SOLID .15sec and 1.5 mph in the 1/4 mile. I have NEVER even ALMOST run as fast with my flowmaster as I have with my cutout open. it's just not a fair comparison.
Old Feb 26, 2004 | 12:21 AM
  #5  
LimitedEd1LE's Avatar
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From: Chicagoland Area
Very simple......

Less restriction = more HP.

Why do you think all those high hp cars just run open headers?

Just forget the cat-back and put the cut out on.
Old Feb 26, 2004 | 01:40 AM
  #6  
zx1216's Avatar
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From: Milwaukee, WI
Where do u guys run your cutout? Is there much of a power difference if i put it where the cat is or father back before it goes over the axle?
Old Feb 29, 2004 | 05:53 PM
  #7  
Dragon Racing's Avatar
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From: Fillmore, IL,
A cut out will make more power. I've got my cut out installed right before the rear axle. You can easily reach under there and un-cap it.
Old Feb 29, 2004 | 06:25 PM
  #8  
IXLR894Z28's Avatar
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From: Pueblo West, Colorado
Mine is installed in the hollow space under the rear seat, its electric so I dont worry about uncapping it.
Old Feb 29, 2004 | 09:28 PM
  #9  
zx1216's Avatar
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From: Milwaukee, WI
any of you guys have pics?
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