I followed all the steps to install two brothers slip on carbon fiber exhaust. Bike randomly shuts mostly when in a red light or stop sign. The f1 code comes on. It wont start until turn off switch and give like a min then code comes off. Suzuki Gsxr 1000 k6. Yes took out the cable and removed the stock ecv whatever its called.

Your probably not getting enough back pressure

What's the idle set at? I had to adjust mine after exhaust upgrade.

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So I ran the bike in my garage no problem. I decide to run it outside. I drove one block it shut off. Put it dealer mode. Got the code c26 at that time it turned out to be the tip over sensor had fell off during
installation. Now its running fine.

i thought your bike was rejecting the twobros transplant in protest... :lol

^ Lol...