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N10 Cats

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Old 04-15-2024, 04:46 AM
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N10 Cats

I need new N10 CATs. What fits under there & is high flowing? Not worried about the AIR tube. That's long gone.

I was thinking about CTS-V CATs, or Corvette CATs. They support 700 HP on a super charged motor.

The room is tight under there. Could hardly get a floor jack under there with the OEM CAT's.
Old 04-15-2024, 03:06 PM
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Location: Franklin, KY near Beech Bend Raceway, Corvette Plant and Museum.
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Car: 1992 Pontiac Firebird
Engine: 5.0L L03 TBI
Transmission: 700R4
Axle/Gears: 2.73
Re: N10 Cats

What 3rd gen do you have?

What engine is in the car now?

What parts of the factory N10 exhaust system are stock now?
Old 04-15-2024, 03:38 PM
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Re: N10 Cats

Doesn't matter what I have now. It's future proofing..for the LSA swap.
Old 04-15-2024, 06:27 PM
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Location: Franklin, KY near Beech Bend Raceway, Corvette Plant and Museum.
Posts: 260
Received 116 Likes on 91 Posts
Car: 1992 Pontiac Firebird
Engine: 5.0L L03 TBI
Transmission: 700R4
Axle/Gears: 2.73
Re: N10 Cats

Oh. Well I have no idea then. Seems like whatever you would do now would have to be reworked a lot for later with a LSA swap.

When you get around to doing this LSA swap are you going to be running some kind of cast manifolds, shorty/mid length headers, or full length headers?

What's wrong with the N10 cats on there? They rattling or clogged up?
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