Quote:
Originally Posted by city1991
So what's it do compared to stock? My car is stock, how does it benefit the car? 2016 coupe 640 with the N55 motor.
Thanks
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Whether you remove the cats of replace them with high flow catted pipes, you are reducing the back pressure on your turbos allowing better air flow and power.
In order take full advantage of this mod, i suggest you pair it with a flash tune