I have searched the forum but haven't seen any opinions on just the cat. I already have a warpspeed y-pipe, b-pipe (which the resonator already came loose inside after 1yr), and warpspeed Q clone muffler. I have looked at Random Tech and Magnaflow. Any suggestions on which way to go. Also considering the warpspeed hi flow cat but leaning more towards one of the other two.

 

none.... stock is highflow.... all aftermarket are $hit

 

+1.. the stock one is the same diameter and flows just fine.

 

The ONLY reason you should ever get a hi flow cat is if your stock cat is bad and you need a cheaper than OEM replacement that will still pass smog.

 

I had a carsound cat from warpspeed and it fell apart in about 1 year. I tossed my original cat so Im running a B13 cat which is identical. OEM's outlet is actually bigger than 2.5" too btw.

 

My oem cat is in pretty bad shape. Sounds like I just get the oem cat since there is no benefit to an aftermarket.

 

Whatever you do stay away from Random Technologys they are known to melt or break. go with a magnaflow.

 

go with the random technology its stainless steel.

 

If you stock cat is actually bad than dont bother with another OEM cat, they are hundreds of dollars. Go with a random tech cat or a warpspeed magnaflow cat. The warpspeed magnaflow is only $99.

 

yea a $99 piece of crap as I already said.

 

Well my carsound cat has been fine for three years.

 

i got my high flow cat on ebay and it works just as fine, they're not ****.

 

I had a 35 dolla ebay one, worked find. It was basically a resonator with flanges on the end.

 

Words of a wise man.

BUT, since yours is garbage then I would consider Random Technologies.
No power increase, but MUCH cheaper than OEM. (less than half the price!)
DJ

 

oem cats can be found cheap here sometimes, i picked one up for 35 bucks a while back.

 

my stock cat rotted on me, so I picked up a warpspeed (magnaflow), and it's been fine for over 6 months now with my Greddy catback and budget y-pipe.

 

My magnaflow is fine.
I have a full 2.5" exhaust.
Imo there is a difference. butt thats just me comparing it to my other
4th gens.

 

My stock cat fell apart. So I just went straight pipe with a custom welded pipe used from 2.5 inch piping.