[Z06] pup cats
Thread Starter
Drifting
Joined: Jun 2004
Posts: 1,374
Likes: 0
From: TN
pup cats
I was told today that all the new vetts came with these pre cats or pup cats. My Z does not have them is this something that they take off on the Z's and what years have them? Also does the Z have High flow cats on it from the factory? this 03 we just bought is alot louder than my 00 with the Z06 Ti's on it. now it did not have the pre cats either why is the Z so much louder. I am not complaining just curious. I love the way this thing sounds very agressive at idle and WOT. I love this car! shes all stock for now but not for long!
Racer
Joined: Jun 2004
Posts: 324
Likes: 0
From: Lake Mary FL
Originally Posted by 00BlkFRC
I was told today that all the new vetts came with these pre cats or pup cats. My Z does not have them is this something that they take off on the Z's and what years have them? Also does the Z have High flow cats on it from the factory? this 03 we just bought is alot louder than my 00 with the Z06 Ti's on it. now it did not have the pre cats either why is the Z so much louder. I am not complaining just curious. I love the way this thing sounds very agressive at idle and WOT. I love this car! shes all stock for now but not for long!
Racer
Joined: Oct 2001
Posts: 278
Likes: 0
From: Wichita Kansas
pup cats
Here is some helpful information on the changes from the 01 Z06 to the newer Z06:
This upgrade to the LS6 engine's output is the result of new hollow stem valves, a higher-lift camshaft, a low restriction mass air flow (MAF) sensor and a new low restriction air cleaner design. Eliminating the PUP converter from the exhaust system enables better flow of spent gasses and reduces vehicle weight, without compromising Corvette's NLEV (National Low Emission Vehicle) status.
This will cause the 02 and newer to be louder and Mike04Z06 is also correct, that there was I believe 8 lbs less material in the Z06 over the others.
Jeff
This upgrade to the LS6 engine's output is the result of new hollow stem valves, a higher-lift camshaft, a low restriction mass air flow (MAF) sensor and a new low restriction air cleaner design. Eliminating the PUP converter from the exhaust system enables better flow of spent gasses and reduces vehicle weight, without compromising Corvette's NLEV (National Low Emission Vehicle) status.
This will cause the 02 and newer to be louder and Mike04Z06 is also correct, that there was I believe 8 lbs less material in the Z06 over the others.
Jeff
