which CATALYTIC CONVERTER is better?

[boostbaby]

for better tone keep a cat am going with magnaflow cat plus resonator

[turboAccordHSF]

i say delete the cat

if i can i'll delete you.....

[visualpoet]

The OEM cat is supposed to flow well enough that it's not worth the money to change it. At best, it's .5-1 whp difference.

[nismo_2005]

he's confused and has that WHAT THE FUCK FACE on because
you said you have a CATCO(ok) and said also said it was on your sentra( this is a cb7 site?) when he is talking about a better cat for his CB7...also you said 25000 miles on it too?...what the fuck?...lol......

now I'm ....lol

i had the car for 2 years i drove about 12.5k a year and had no problems and the first thing i did to the car was catco cat 2.25 crush bent catback and cheap ebay muffler on a budget for my first car it did its job. and my name is nismo_2005 i have owned mostly nissans and don't have any experience with a cb7 yet so i was giving my personal experience with a product.
Is 25k out of a aftermarket cat really that hard to belive?

[NorcoAccord]

I have a random tech cat and it works well for me.

[lummieCB7]

I'm running a magnaflo cat on my car. Had no issues passing smog with it either.

[bcjammerx]

ebay is not a brand and thus you can not buy an "ebay" cat

no brand no buy

and my answer depends on what you plan/do have done to the car

if it's stock except for the cat back then get a cat that matches the inner pipe diameter, I don't know what the id's of those are. You don't NEED one, especially if your header is stock.

You do not need a high flow if you have a stock or mostly stock engine. If you have "stage 1" or higher cams, larger tb. Not if you have just a CAI style intake.


if you are just trying to pass inspection get an oem from autozone or somewhere (honda oem is gonna be expensive), if you have some intake mods, a header, and 2.5" or greater cat back, then get a larger diameter cat.

Go with an actual brand though

so while you may not NEED one...it won't hurt to get one unless you cheapo out

[nismo_2005]

and plus if you shop around catco and magnaflo(im sure others also) can be had for 50-60usd and even less on ebay.

[maga_cb7]

ebay is not a brand and thus you can not buy an "ebay" cat

no brand no buy

and my answer depends on what you plan/do have done to the car

if it's stock except for the cat back then get a cat that matches the inner pipe diameter, I don't know what the id's of those are. You don't NEED one, especially if your header is stock.

You do not need a high flow if you have a stock or mostly stock engine. If you have "stage 1" or higher cams, larger tb. Not if you have just a CAI style intake.


if you are just trying to pass inspection get an oem from autozone or somewhere (honda oem is gonna be expensive), if you have some intake mods, a header, and 2.5" or greater cat back, then get a larger diameter cat.

Go with an actual brand though

so while you may not NEED one...it won't hurt to get one unless you cheapo out

I know ebay is not a brand but its on ebay and has no brand name
I have aftermaket header and catback exhaust coming on the way.

[nismo_2005]

what size catback and header? if you are really worried about it you might as well remove the possible bottle neck by adding a aftermarket cat of the same size.