Quote:
Originally Posted by David1
To much fuel to make more aggressive pops will damage any cats. On the old N54 cars there was a way to make those cars pop and bang real loud and it destroyed the cats real quick. Here is a picture of my fabspeed cat after 8800 miles with a mild tune and stock bmw pops. Just like new.
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100% agree - agg burbles/excessive overrun popcorn and catted DP's don't mix....