Gr8bone

Has anyone installed it in a 2000 fed spec max?
I was told I need to weld an O2 sensor to the Greddy.
Can anyone confirm this?
65k miles and the pipe rusted out right before my muffler and this seemed to be the best replacement since no one carries 2k+ mufflers locally and the factory costs more than the Greddy

00MaxSE

iTrader: (25)

Yeah I put my EVO1 on 2 summers ago. You have to have a bung hole welded into the B pipe for the O2 sensor just after the cat. Other than that, it's a bolt on. You're lucky...FULL stainless.

Ephraim

iTrader: (15)

i just installed mine this past saturday with a friend. we took the cat out completely and replaced it with a straight pipe. did not re-install the sensor and no SES light has come up or anything.

PO-POMAX2K

On the bung weld, got mine done at a muffler shop for $15. This is after a friend and I installed the system and I drove around with the O2 sensor zip stripped to the bottom of the car for about 2 days with the SES light on.

pana69

you guys have fed spec maximas right? my EVO2 is in the mail and I hope I don't need to weld things. (mine's Cali spec)

maxcozmo

The muffler on mine did the same same thing, rusted right through. I didn't replace the whole system, just the rear section.

00MaxSE

iTrader: (25)

Yeah I think you should be fine if you're cali spec.

PO-POMAX2K

I just spent Sunday masking the welds and spraying the welds with 1200 degree high heat engine paint w/ceramic. We'll see this works out. I really hated sseing them hack into that stainless system.

Gr8bone

It sounds like the Cali spec doesn't need the Bung and the Fed spec needs it?
What is the easiest way to find out which one I have without getting under the car?

The only O2 sensor I saw last time I was under the car was directly under the engine. I assume the sensor that needs the bung is further back?

pana69

I think that If you open your hood and reed the white sticker underneath it it should say somewhere something regarding california specifications...I think

00MaxSE

iTrader: (25)

Open your hood and look in front of your engine just below where it says "V6 3000" on the plastic cover. You should see some wire harness connections. If you see only 2 (on the right side) then you car is Fed Spec.
If you see 4 connections, then you're Cali Spec. Simple as that.

Gr8bone, the sensor that needs the bung is off of your b-pipe less than a foot after your cat.

Gr8bone

I have 4 so I am Cali spec. Which spec needs the bung? And if I need the bung does a hole need to be cut in my pipe for the bung? thanks
http://66.193.181.66/max/Gr8Max2K/paintedENGINE/

BlackBIRDVQ

iTrader: (15)

right infront of the valve cover- front one there are 4 plugs- 2 green and 2 gray ones- these are for the 4 O2 sensors the cali specs have. Federal spec ones have just 2 plugs there. Cali spec has no O2 sensor behind the main cat- I didn't weld in no 02 sensor bungs onto my Greddy EVO. I have the www.02simlator.com installed on my car since I don't have any cats and I would get check engine lights every 5 days for catalyst efficency bellow threshold.

00MaxSE

iTrader: (25)

FED spec needs the bung. You do not.

panda_1

iTrader: (4)

from my knowledge cali-specs dont have the o2 sensor behind the cat. so your scrate.

Gr8bone

woohoo! thanks guys! That takes a little bit of the bite of this upgrade