soldier6552

I think Im gonna need to go catted after all guys, so what are the best cats as far as flow and sound. Would it be possible to duplicate a section of my piping from my Rumbler Xpipe to include cats so that whenever I wanted I could just switch out the catted section for the non catted one?
-JOSH

Z28Venom

iTrader: (13)

The best are the random tech cats, but they're pretty expensive. You can get a pair of carsounds which flow extremely well for $100 off of eBay.

If you go to a good shop, I'm sure that they can fab in some flanges so that you can swap things out.

MyLilWS6

I like magnaflow/carsound cats but any high flow cat is good

Quick Time

iTrader: (1)

We have the magnaflow cats on the shelf. its the ones we use in our y pipes. Flows very well 400cfm and is not expensive.

MeentSS02

iTrader: (11)

I have magnaflows on mine, and they work very well. I'll be ditching them in a couple of months when I go to a true duals setup, and I'll be getting a before and after dyno to show the difference. I'm not expecting to gain much, if anything at all, peak HP and TQ-wise, but hopefully the dyno will prove it.

And before you go asking why, I'm going to duals for the sound and (hopefully) more midrange torque.

JL ws-6

iTrader: (50)

Go with the ones that Barry has, look at the power in my sig, stock internal car. I doubt that it would have made that much power if those cats were restrictive at all.

ls1_doc

iTrader: (6)

Ditto

Ryan02SS

iTrader: (3)

Magnaflow @ Carsounds are internally the same and flow the same. The Maggies get the shiny heat shield compared to the carsounds. Seems they are very durable and last a long time too boot. I lost 9rwhp adding my QTP 3" Catted Y pipe compared to my Hooker ORY both runs cutout open. This was on stock heads, TR224, Longtubes, All bolt ons and tuning. 399rwhp to 390rwhp.

jlrz28

iTrader: (7)

Ive got the Random Tech. Metallic cats there great and havent had any problems with them. I have a custom Y with Macs in front of it with a SLP Dual Dual out back.

ls1_doc

iTrader: (6)

Thats because they are the same company

z-ya

iTrader: (1)

Dynomax powercats 11" overall length 4" dia for the 3'' pipe,metalic substraite flows like a bitch,much tougher than ceramic for life in the speed bump zone.

Ferocity02

iTrader: (60)

Carsound here too. They flow as well as any other high flow cat and are really cheap. I love them!