Should I replace my Cat

[rolltidero]

Im thinking about getting a high flow cat for my spyder. I was wondering what the advantages are? What are some good brands/sizes? Is it legal? How much of a performance increase would it be? On a slightly different note but still relatable note, I have a cat-back exhaust but what should i replace first? Cat, Downpipe, headers, etc? Thanks in advance.

 

[GRAVEDIGGER]

Happy reading!

http://www.dsmtuners.com/forums/bol...ng-high-flow-cat.html?highlight=high+flow+cat

http://www.dsmtuners.com/forums/newbie-forum/393205-high-flow-cat-milspec-100-cell-vs-vibrant.html

http://www.dsmtuners.com/forums/bolt-tech/391545-high-flow-cat.html

http://www.dsmtuners.com/forums/newbie-forum/250552-cheapest-3in-high-flow-cat.html

http://www.dsmtuners.com/forums/newbie-forum/253721-what-2-5-high-flow-cat-there-flanges-2g.html

 

[DsmDolney]

stm has some sweat stuff when it comes to exhaust its a little spendy but well worth it.

 

[Black Matrix]

No expert, but I would guess that you should look for a straight pipe to replace your CAT if your not worried about passing any kind of local or state emissions tests. It should increase your flow, much the same as the hi-flow CAT, but cost a good deal less....Although, it isn't "street legal". Although, your probably more apt to get a ticket for a loud muffler, or tinted windows.

As for which to get first, the exhaust is basically one long tube. If you want the best power, it should be all the same size diameter, chosen for the type of power you want to eventually reach, mandrel bent to prevent any internal restrictions, and made out of the best materials you can afford. Any bottle necking in any part kind of defeats the purpose. But I do seem to recall that you need a bit of back pressure via the muffler, but can't remember exactly why.

 

[2gmitsueclipse]

You can get a magnaflow metallic spun high flow cat on ebay for under $100 shipped.

I think the seller is zzperformance or something like that.

 

[rolltidero]

I know this is a new question but I don't wanna start a new thread on it but what do you do with the cat you take off your car? Is it safe to keep in a garage? Can you recycle it? Is it legal to resell?

 

[FalleN4ng31]

I know this is a new question but I don't wanna start a new thread on it but what do you do with the cat you take off your car? Is it safe to keep in a garage? Can you recycle it? Is it legal to resell?

Yes, yes, and yes.


You could also just gut your current cat if you don't want to purchase a test pipe. (This is assuming you don't have emissions in your state.)

 

[Black Matrix]

CATs bring decent money at recycling centers. That's why so many of them get stolen off vehicles.