Re: Prospeed Hi-Flow Catalytic Converters!
I purchased the Hi-Flo cats and ROM Chip combo a few months back. I'm very satisfied with the results! The car sounds and smells much better at idle than it did with the test pipes. No problems with the o2 Sensors. The fitment of the Cats was superb. The included bolts were a nice touch as well. Brian provided great post-sale support.
I haven't had a chance to dino test the results, but the setup did great in the "seat test"; feels more responsive throughout, and the power band kicks in at a lower RPM than before.
I'd recommend this setup to anyone seeking a quality product to increase performance, decrease weight and still pass emissions!