cat delete or high flow
#1
cat delete or high flow
Hey new to the ls1 just bought an 01 z28 auto 83k bone stock except for the K&N filter,getting the unpleasant rotten egg smell so I guess the exhaust is the first mod on my list. Should I delete the cats or replace them live in mi no emission tests and I daily drive almost 100 miles a day to work and back
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