Frank- You would not lose your cats. If you look under your car, you can see your exhaust 'box' with two curved-shaped pipes. These are the 'connecting pipes'
In order to install the Remus without the connecting pipes, you would have to hack off your stock 'box' if you understand what i mean.
Let me know if you need any clarifications since I'm being kinda vague
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‘23 RRS First Edition
'22 X7 M50i
'18 R8 V10+
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