You can run no cats as long as you dont throw a CEL, the Fast Intentions Test Pipes are made not to throw a code, but if you get an UpRev tune they can turn off the rear 02 sensors.
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2010 Base+Sport 6spd: Stillen G3, FI Non-Resonated CBE, FI Non-Resonated Test Pipes, UpRev Tuned, Custom 24R Oil Cooler, JDM Rear Fog-OEM Harness.
???Whp ???WTQ (Will find out come spring time)
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