My RT cat..


the honeycomb broke inside it... now it rattles and if it turns sideways i could block my exhaust...

i am checking on the warranty...



it hasn't been a year!!

 

Go here:

http://www.warpspeedperformance.com/nissan.htm

Order this:

HI-Flow 2.5" Carsound Catalytic Converter for the VQ

$120 or so after shipping and all will be well. Throw the RT one in the trash can.

 

i am hoping to get a free replacment.. if not i am getting a straight pipe and cat from warpspeed

 

Ok, fine.

I would get the replacement, sell it here, and go with straight pipe and cat from Warpspeed.


I'm stating all this because there doesn't seem to be a whole lot of shiny, happy people with RT cats, especially for their "premium" cost.

 

I had the same problem.

http://forums.maxima.org/showthread....&highlight=CAT

I just went ahead and got a straight pipe from warpspeed.

 

well sounds like i might just go with a straight pipe

and take RT cat and sell it...hmmmmmm

 

Remember:

The failure of one stock or mod part is nothing but an excuse to expand your mods.

 

and i wonder why i like you as a moderator..

 

Just gut the RT cat. Why would you spend money to go out and buy another one?

Ant

 

yup yup, that's what i said when some hit my bumper at the club friday night, oh well it's a dent. i pulled it out and smoothed it all myself, pretty easy to do, but it's not totally fixed. i'll just wait and get a full body kit that comes with a rear bumper and put that on instead of getting the stock one fixed. if i was gonna keep my car while it was at the body shop i should have just gotten a sarona kit them and been done with it.

 

questions about the straight pipe... aren't we supposed to have a cat on our cars? what about emmisions? and the sound... right now i only have the CAI and GReddy Evo catback. i know once i add the y-pipe, it's going to be louder, but would it be more loud with the straight pipe? i just want to make sure about all of this before getting all this stuff...

 

because you often lose power if you simply gut the cat.. the huge cavity causes a backup in the airflow, so it creates more backpressure than if the honeycomb was still there.
gutted one of mine and lost about 8hp.

 

Jeff(redmax)...your car sucks and therefore you should sell the rest of the mods before you break them too and take the car to the junkyard...

 

hmmm



chris

 

I guess that applies only for NA cars? Turbo cars definately benefit from gutting the cat.

Ant

 

some of it depends on the cat itself.
If you gut a stock Maxima cat, you'll cause more backpressure because the air doesn't flow through the cat. it flows into the chamber where the honeycomb used to be, then bounces around and tries to go out the back. lots of turbulence. If you install a straight pipe instead of the cat, or get one that has better flow qualities (when hollow), then you might see some gains there.

 

Was that rattling sound constant or intermitent?

 

it was a constant..(very low noide at idle

and when it was in drive the noise increased..


it was the loudest when i would stop at a light..

 

Gotcha. I've got this rattling in my exhaust (I think) sometimes around 3K rpm.

 

i thought you finally found out about all those little pebbles i put in your exhaust at the last meet when you weren't lookin.. hehehe

 

I installed a straight pipe this weekend and all I can say is "DAMN!! WHY DID I WAIT SO LONG??!!"

Then I remembered, "Oh yeah...emissions."

-Left

 

Is this before, or after you covered up the hole ...

 

Obviously after...

My evil self is trying to convince my good self to keep the straight pipe on full time.

 

nice, you think it's worth the effort to do it, where did you get a flanged one and how much.

 

www.testpipe.com

 

Hmmmmm....tempting. What am I supposed to do with the Cat O2 sensor? Neither the picture or the description mentions a place for the O2.

 

you get an o2 sensor put bunge installed.. it should not be too expensive at a muffler shop

 

The 2K2 doesn't need the O2 sensor. The pipe I bought had a nut Welded into a hole in the pipe specifically for an O2 sensor. I ran with the hole unfilled and it sounded like complete RICE. So I found a screw to fill up the hole....

Now its much better...

Highly recommended BTW...

The install was easy for me since I merely replaced my RT Cat. But originally, those stock cat bolts (4 of 'em) were a beeotch...

 

i just ordered one

 

for the price i might too..

let me know on the quality of it..

and i will if it is good stuff..