I installed my TopSpeed Cat Delete / Test pipes today. Pretty straight forward project, but always a challenge when mating aftermarket to other (Borla) aftermarket products. With a bit of persuasion, it all went together reasonably well.
I had read that the cat deletes would reduce the drone the Borla's are pretty infamous for. I was shocked! It REALLY helped a lot. Not 100% gone, but WAY better. Lots of good, deep, throaty sound with burble on decel.
