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R/T Rick

Removing Your Cats

27 posts in this topic

Don't remove the cats. The noise will drive you nuts.


On my 5.7 I supercharged, SRT headers, Solo High Flow Cats and SRT8 Flowmaster {American Thunder System... no resonators} cat back.


Nice deep tone with no drone. Louder than stock but not loud enough to attract attention.


I read somewhere years ago that the Dodge engineers stated that these Hemi's like a little back pressure.


Good luck with whatever you end up doing.





I recently bought the car. I checked underneath my car and I have high flow cats so I'm leaving them on.

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