[Terry335]

Originally Posted by Hegemony

Nice runs all.

To help answer the exhaust question, I had a custom exhaust made with 2.5 inch pipes, no crossover and mangaflow mufflers. Originally, I had left the 2ndary cats in and later had them removed. Unfortunately, I did not get a pre/post dyno from factory exhasut to custom.

However, I did get a pre/post on just removing the secondary cats. I gained an average of 7 hp across the entire curve and about 7.5 at the peak on a dyno-dynamics dyno. These dyno's typically turn our lower numbers than dynojets, and we did not apply any correction to make dynojet style numbers.

Good info, thanks!