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Originally Posted by Gary in BR
I am interested in the cat by pass myself.
Could you dyno the car to get a base line and an after dyno.
I am also interested in any sound difference.
I know that opening the cats will allow more air flow hence more power but I would like to know how much power.
What is your plan for the CEL??
Gary
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Gary, opening just the secondary cats alone isn't going to give you any more noticeable power. It will enhance the sound though. Gives it a deeper tone. The secondary bypass will not cause a CEL. Even with both sets of cats off I only had one CEL in about a 1,000 miles of driving.
JP, I wish I could join you guys Sunday morning. Sounds like a great day. Have been wanting to see your car.