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Old 01-07-2022, 11:53 AM   #1
Gstick
 
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Hi-Flow cats

What manufacturer of hi-flow cats just bolt up to the OEM NPP exhaust ? (without any cutting or welding)

I can't make up my mind on hi-flow cats & keeping the NPP exhaust, or going with a Corsa full exhaust.

Decisions x2.
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Old 01-07-2022, 01:26 PM   #2
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Use headers and hiflows, works great with the NPP.
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Old 01-07-2022, 02:06 PM   #3
CamaroDreams76
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NPP with headers is basically the perfect exhaust. Its loud and sounds great with virtually no drone.

If you want something that bolts to stock headers and npp catback then your looking at American Racing Headers, Solo or JBA.
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Old 01-07-2022, 04:29 PM   #4
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Thank You for the replies. I'll do some research.
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Old 01-07-2022, 06:33 PM   #5
pyroguy
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Quote:
Originally Posted by CamaroDreams76 View Post
NPP with headers is basically the perfect exhaust. Its loud and sounds great with virtually no drone.

If you want something that bolts to stock headers and npp catback then your looking at American Racing Headers, Solo or JBA.
GREAT advice here.

Honestly, long tube headers with high flow cats and NPP exhaust will work great for you. It's legal in PA (I never had any issues passing inspection when I lived there) and you'll love the new sound and power. Don't forget a quality tune too. The biggest pinch point in the factory exhaust are the factory cats. Don't waste a great catback chasing a better sound.
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Old 01-07-2022, 07:25 PM   #6
NOT A 45

 
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Quote:
Originally Posted by CamaroDreams76 View Post
NPP with headers is basically the perfect exhaust. Its loud and sounds great with virtually no drone.

If you want something that bolts to stock headers and npp catback then your looking at American Racing Headers, Solo or JBA.
I Agree, I have slp long tubes with high flow cats going through my npp exhaust....sound is awesome and I have the fuse pulled as well. Every head turns when I’m around! Everything fit perfectly
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