Big cam, ORY, STOCK catback

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Jan 24, 2015 | 08:09 AM

#21

scotty2000ss

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From: Roseville, CA

Why not leave the stock cat back, add a cut out and call it a day?

Jan 24, 2015 | 03:27 PM

#22

moeZ28

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From: ashland, ky

It's not about what it looks like though, it's about how well it flows. A Flowmaster 80 series looks nice inside and is generally regarded as a performance killer, flows worse than stock.

Jan 24, 2015 | 03:54 PM

#23

99Bluz28

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From: C. V., Kalifornia

Quote:

Originally Posted by moeZ28

It's not about what it looks like though, it's about how well it flows. A Flowmaster 80 series looks nice inside and is generally regarded as a performance killer, flows worse than stock.

I'm not a fan of the FM 80, but worse than a stock Z28/SS gm muffler; I really doubt it.

Jan 24, 2015 | 11:41 PM

#24

moeZ28

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From: ashland, ky

I've seen it several times on a dyno.

Jan 25, 2015 | 01:37 PM

#25

DadsZ28

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From: deptford,new jersey

Quote:

Originally Posted by scotty2000ss

Why not leave the stock cat back, add a cut out and call it a day?

That's the set-up I've been running for years, but the stock muffler is very restrictive ( almost 20 hp diff with the cut-out open ). Going to put a better catback on soon though.

Jan 28, 2015 | 03:10 PM

#26

moeZ28

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From: ashland, ky

That's pretty well the same setup I have...although I'm running Edelbrock 1 3/4"- 1 7/8" stepped headers, custom ORY with flowmaster dual 3" in/ 4" out merge, 4" section of pipe to the 4" cutout, then neck down to 3" for the stock SLP Dual/Dual setup.

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