Random Technology High Flow X Pipes & Codes

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Sep 20, 2004 | 03:49 PM

vettenuts

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Joined: Mar 1999

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From: At the beach in little Rhody

Random Technology High Flow X Pipes & Codes

Has anyone installed the RT X-pipes? They have been around for a while and I am wondering if people are getting a lot of O2 error codes with these pipes.

Sep 20, 2004 | 05:55 PM

BT-01-vette

Le Mans Master

Joined: Jan 2002

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From: Camden County NJ

No codes here and they even passed the NJ emission testing

Sep 21, 2004 | 10:18 AM

AU N EGL

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Joined: Sep 2003

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From: Raleigh / Rolesville NC

Codes?? We dont need no stickin codes.

Nope no codes here either. Just passed NC OBDII

Sep 21, 2004 | 11:16 AM

HITMAN99

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Joined: Jul 2003

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From: Annandale VA

I get PO420 and 430 codes about once a week on my '04 CE coupe. This is w/ Jet Hot headers, the RT x-pipe, and Z06 Ti catback.

Sep 21, 2004 | 10:18 PM

Dark-Knight

Race Director

Joined: Feb 2003

Posts: 11,133

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From: ~The DARKSIDE Group~

Note info in signature below, no codes here.

Sep 21, 2004 | 11:30 PM

Gray Ghost GS

"AlohaC5" Senior Member

Joined: Jun 2003

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From: Madison, AL

See signature below. No codes!! I passed one of the toughest emissions inspections in Fairfax County, Virginia - the dyno/sniffer test!

Sep 21, 2004 | 11:32 PM

hightest

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From: Calgary Alberta

I've been running them for three months now and no codes.

Sep 22, 2004 | 07:11 AM

vettenuts

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From: At the beach in little Rhody

Quote:

Originally Posted by HITMAN99

I get PO420 and 430 codes about once a week on my '04 CE coupe. This is w/ Jet Hot headers, the RT x-pipe, and Z06 Ti catback.

I can't figure this out, there seems to be an occasional random problem with codes. It has been stated that older cars may just have O2 sensors that are not responding as well and need replacement, but not on an 04. I have been looking into headers with the RT pipe. Any luck in resolving this?

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Sep 22, 2004 | 11:19 AM

BHP

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From: Nevada and Florida

Lots of folks here have installed headers and hi-flow cats. Consider doing a poll to see how many have cat efficiency codes based on year.

Sep 22, 2004 | 11:26 AM

#10

RWhite

Melting Slicks

Joined: Dec 2001

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From: Collin County Texas

Never got codes with the RT Cats. Only have to pass OBDII here in DFW area.

Sep 22, 2004 | 11:28 AM

#11

Buckmaster

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From: Just trying to make it through each day.

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St. Jude Donor '03-'04

Quote:

Originally Posted by HITMAN99

I get PO420 and 430 codes about once a week on my '04 CE coupe. This is w/ Jet Hot headers, the RT x-pipe, and Z06 Ti catback.

What do those codes mean?

Sep 22, 2004 | 05:37 PM

#12

BHP

Le Mans Master

Joined: Jul 2002

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From: Nevada and Florida

Quote:

Originally Posted by Buckmaster

What do those codes mean?

Cat low efficiency code. The rear O2 is reading too high or close to the front 02 voltage.

Sep 22, 2004 | 06:23 PM

#13

Dr. Dan

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Joined: Oct 2002

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From: Langhorne PA

No Codes; installed almost a year ago.

(after emissions though) Good to hear that they pass OBD II.

Sep 22, 2004 | 06:46 PM

#14

BlueDragon

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From: Morgan Hill Ca.

Nope, no codes, but then I gave the LG headers and 3" system with the Random Tech cats and sims in the rear 02 position!

Passes in Calif! Just got back from having mine tested!

Sep 22, 2004 | 07:43 PM

#15

vettenuts

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From: At the beach in little Rhody

Quote:

Originally Posted by BHP

Lots of folks here have installed headers and hi-flow cats. Consider doing a poll to see how many have cat efficiency codes based on year.

I would be really interested in the results of that poll.

Sep 22, 2004 | 08:44 PM

#16

FixedRoof

Melting Slicks

Joined: Mar 2003

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From: FL

Cruise-In VI Veteran

If you are having cat codes... (aka rear O2 Sensor Codes) just throw a set of O2 Simulators on and eliminate the rear O2's (like if you weren't running cats)... You dont need the rears. Also, you could use an LS1 Edit tune and turn them off.

Hitman99 are those the only codes you are getting with the headers??? I'm looking at a set of those Jet-Hots now for my car..

Steve

Sep 23, 2004 | 02:10 AM

#17

Dirty Howie

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Joined: May 2004

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From: SoCal

I have th KOOKs setup with highflows and xpipe.

I get the P0420 every 3-400 miles.

Sep 23, 2004 | 09:10 AM

#18

HITMAN99

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Joined: Jul 2003

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From: Annandale VA

Quote:

Originally Posted by Steve92LT1

Yes, they are the only codes I am getting. I get the PO430 a bit more often than the PO420. I have seen at least one post suggesting that replacing the rear O2 sensors with ones for the front will help, as the fronts have a better heating element. ??? That doesn't make a whole lot of sense to me. I have also heard that replacing the rears with a non-OEM sensor might help --- again, that doesn't make a lot of sense.

One thought I had was to replace the fronts, as they might have a little oil on them. The car was burning over a full quart per 5K miles, but I have since added a catch can. My thought was that if the fronts had some oil residue on them, they might not register as much voltage, thereby making them read closer to what the rears read.

So far, I am just resetting the codes once a week. I have already had the car tuned w/ HP Tuners, and can get the codes deleted free of charge. However, I'm a little concerned that the OBDII emissions scan (down the road a few years) will be able to detect the deletion.

Gary

Sep 23, 2004 | 01:45 PM

#19

TopCat

Pro

Joined: Apr 2002

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From: Denver CO

Hitman99-
I'm looking at a set of those Jet-Hots now for my car. Did you install yourself? How do you like them (sound/power)? Get dyno results when you got your tune?
Thanks for any info
- TC

Sep 23, 2004 | 02:01 PM

#20

HITMAN99

Drifting

Joined: Jul 2003

Posts: 1,796

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From: Annandale VA

They were professionally installed at F-Body Central in Baltimore, but the install was very easy --- no jacking of the engine required, or any special measures.

I dynoed afterwards at 324 HP, 339 TQ, w/o the benefit of wide-band tuning, as the dyno shop's tailpipe sniffer was on the fritz. The engine is still running fairly lean, w/ some pinging at cruise under light acceleration. My guess is that I'm getting some knock retard above 4400 RPMs, which is keeping the HP number down. In my experience, HP and TQ numbers are usually around the same for LS1's w/ OEM cams.

I am very happy with the Jet Hots --- appearance, sound, and performance.

Gary

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