Mine is bordline on the street with the cutouts closed. Most people think I have them open, when they're actually capped up. 2 each 3" inch highflow cats dont restrict sound or performance. The car sounds like an open header car with the cutouts open, even though I'm running through the cats. Way to loud to consider running on the street with it cutouts open.

Nothing wrong with highflows cats, especially if you need to pass dyno emissions testing. I always thought 13.4's were for pansies...

 

i say go for the dual cutouts. you should see some gains from it. i would if i didn't already have duals with bullets on them. i don't think i'd really pick up much as it is.

 

Well speedmiser I did lay down that number when I was 16, so I guess it is pretty pansy.