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

How much is my catback hurting me?

Old Nov 1, 2003 | 11:22 PM
  #1  
speed_demon24's Avatar
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How much is my catback hurting me?

I have a catback off a 2002 WS6. How much horsepower do you think I would gain with a magnaflow?
Old Nov 2, 2003 | 12:10 AM
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Does it have a 3" intermediate pipe?
Old Nov 2, 2003 | 10:48 AM
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2.75" intermediate pipe. Its the same piping as the stock Z28 exhaust, the only difference is the muffler and tips. It is the OEM WS6 GM exhaust for 99+ LS1's.
Old Nov 2, 2003 | 10:50 AM
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I'd say you could pick up a few horses just from the intermediate pipe alone...go with the stainless magnaflow catback off ebay for $250, you should pick up around 5-8rwhp
Old Nov 2, 2003 | 10:59 AM
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Originally posted by Cmr0z28
I'd say you could pick up a few horses just from the intermediate pipe alone...go with the stainless magnaflow catback off ebay for $250, you should pick up around 5-8rwhp
Thats what I'm planning on doing after i get my drag radials.
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