[heymanwatchthis]

Stephen,

Interesting read. People say deleting 2nd cats takes away the drone, which seems counterintuitive to me as it increases flow, and I would think also increases noise.

However after reading the Planet-9 thread my conclusion is that taking away the cats changes length of exhaust path, which changes shape of sound wave, and in this case apparently reducing resonance.

Still scratching my head - test pipes, or go back to stock with Pedro mod.

Gary