brendo389

So I've decided over my next few paychecks I'm taking the expensive plunge into headers, pipes, cutout, and a tune. I've been looking into, and pretty much decided on the TSP 1 3/4" headers and TSP True Duals, but I'm open to other conventional Y-Pipe options as well. With the TD's, is it possible to still run catalytics, or do they need to be deleted? I'm in Columbus, OH, so catalytic converters aren't required for emissions testing, but down the road it could potentially be a problem if I move somewhere for work. Do the TD's generally put down more power than a Y-Pipe system, about the same, or less? Any input is gladly appreciated, thanks!

lees02WS6

iTrader: (5)

Catalyic converters are required everywhere under the federal clean air act, the penalty is steep, and finding a shop that looks the other way can be an issue for some. Lots of people remove them and get away with it. I have cats on my true duals, they cut down or completely remove rasp from the exhaust.

A y-pipe can work just as well depending on size.

https://ls1tech.com/forums/generatio...aust-info.html

brendo389

Which true dual system do you have on your car that runs with cats, or is it custom? Would prefer to run cats if I can

lees02WS6

iTrader: (5)

It's custom. Just have an exhaust shop weld them in to what ever system you get.

brendo389

I think I will, I have magnaflow high flow's, so ill probably just be able to have the ends cut off and the cats straight, onto the system.

Robert02

iTrader: (2)

I have kook 1 3/4 with high flow cats and had no problem passing insp, 3 in y pipe and slp loudmouth