Quote:
Originally Posted by paratrooper
What exactly are "test pipes"
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essentially catalyctic converter "deletes". It replaces the Cats with a strait pipe. If you have to pass emissions test once a year this will indeed fail you 100% (unless of course you swap the OEM cats back on for the test). but they essentially make the exhaust strait pipe and increase power and torque. Also give off a slight nasty smell and could possibly add rasp/hiss if not paired correctly with a proper exhaust.