O/R X pipe and Catback

carlos · August 21st, 2008, 04:23 PM

Im buying an O/R X pipe and Catback and im not sure if i need to re-do my dyno tune. Can i just install it and leave it alone? I just dont want to spend more money on the dyno since i have paid $500 already.

proto89 · August 21st, 2008, 04:29 PM

No, you'll be fine. Just turn off the rear sensors

carlos · August 21st, 2008, 04:39 PM

Originally Posted by proto89

No, you'll be fine. Just turn off the rear sensors

Yeah I already have them off!!

carlos · August 21st, 2008, 06:02 PM

i have been looking at a UPR O/R X pipe. They have 2 for my car, except one has the 02 sensor extension. Do i need this or should i just get the one with no 02 extension?

Reloaded · August 21st, 2008, 06:28 PM

Hmm. Afraid I only know Machs well. But I know that '03 Machs do not require 02 extensions and '04s do. The stock h-pipes are different on the two models.

I assume that you aren't running a wideband?

slow02gt · August 21st, 2008, 06:29 PM

nah you dont need any..

carlos · August 21st, 2008, 06:36 PM

Im kind of new to the FI world so im not sure about the wide band. on a different note, I have heard of people re-tunning their car after installing an o/r x pipe because it leans out.

Reloaded · August 21st, 2008, 06:45 PM

Originally Posted by carlos

Im kind of new to the FI world so im not sure about the wide band. on a different note, I have heard of people re-tunning their car after installing an o/r x pipe because it leans out.

Every car is a little different and you'll hear both responses; tune it, don't tune it. The only way to be sure is, if you don't have a wide-band, to take it to the dyno and have them run it and check the a/f ratio. Wideband is the gauge that reads your a/f accurately. It uses more wires than a regular 02 sensor and is welded into your exhaust pipe near your upstream 02 in front of the cats (if you have them).
This is my wideband. It's an AEM unit:

carlos · August 21st, 2008, 06:52 PM

Originally Posted by Reloaded

Every car is a little different and you'll hear both responses; tune it, don't tune it. The only way to be sure is, if you don't have a wide-band, to take it to the dyno and have them run it and check the a/f ratio. Wideband is the gauge that reads your a/f accurately. It uses more wires than a regular 02 sensor and is welded into your exhaust pipe near your upstream 02 in front of the cats (if you have them).
This is my wideband. It's an AEM unit:

Thanks for the explanation. I guess i learned something today.

Reloaded · August 21st, 2008, 06:56 PM

Originally Posted by carlos

Thanks for the explanation. I guess i learned something today.

No problem. Just another gauge to help make sure that you keep track of what's going on with your engine and necessary to properly tune a car. But most people do dyno tuning so you can just use their W/B setup.

zinc02GT · August 21st, 2008, 08:01 PM

Im pretty sure that the 04 GTs as well need the O2 extensions.

I know for a fact that 02 and below dont need them....

August 21st, 2008, 04:23 PM	#1
carlos Regular Join Date: Nov 2007 Posts: 130	O/R X pipe and Catback Im buying an O/R X pipe and Catback and im not sure if i need to re-do my dyno tune. Can i just install it and leave it alone? I just dont want to spend more money on the dyno since i have paid $500 already. __________________ 2004 mustang vert. Vortech V2-sq, 2 core procharger intercooler, 90mm LMAF, NGK TR6 (.034) Maxflow BPV, 42lbs ford racing injectors, SVT focus fuel pump, 3.60 pulley, Xcal3, O/R X pipe. Dyno numbers coming soon!!

August 21st, 2008, 04:29 PM	#2
proto89 Enthusiast 2004 Mustang GT 14.2@100.12 Join Date: Oct 2007 Location: Orlando Posts: 582	No, you'll be fine. Just turn off the rear sensors __________________ Professor Proto

August 21st, 2008, 06:02 PM	#4
carlos Regular Join Date: Nov 2007 Posts: 130	i have been looking at a UPR O/R X pipe. They have 2 for my car, except one has the 02 sensor extension. Do i need this or should i just get the one with no 02 extension? __________________ 2004 mustang vert. Vortech V2-sq, 2 core procharger intercooler, 90mm LMAF, NGK TR6 (.034) Maxflow BPV, 42lbs ford racing injectors, SVT focus fuel pump, 3.60 pulley, Xcal3, O/R X pipe. Dyno numbers coming soon!!

August 21st, 2008, 06:28 PM	#5
Reloaded Regular 2004 Mach 1 Join Date: Aug 2008 Location: Foster City, CA Posts: 378	Hmm. Afraid I only know Machs well. But I know that '03 Machs do not require 02 extensions and '04s do. The stock h-pipes are different on the two models. I assume that you aren't running a wideband? __________________ http://www.dirtydirtyracing.com For ALL your tuning needs! NO, I will NOT shut my hole! (In my hood)

August 21st, 2008, 06:29 PM	#6
slow02gt Regular 2002 mustang gt i have no idea Join Date: Feb 2008 Location: beaumont, texas Posts: 389	nah you dont need any.. __________________ 2002 MUSTANG GT 4:10 GEARS PI3500 STALL BORLA CATBACK O/R H-PIPE JLT COLD AIR HEADS AND CAMS(sold)..JUST A LIL 20SHOT OF JUICE NOW www.myspace.com/playamade

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August 21st, 2008, 06:36 PM	#7
carlos Regular Join Date: Nov 2007 Posts: 130	Im kind of new to the FI world so im not sure about the wide band. on a different note, I have heard of people re-tunning their car after installing an o/r x pipe because it leans out. __________________ 2004 mustang vert. Vortech V2-sq, 2 core procharger intercooler, 90mm LMAF, NGK TR6 (.034) Maxflow BPV, 42lbs ford racing injectors, SVT focus fuel pump, 3.60 pulley, Xcal3, O/R X pipe. Dyno numbers coming soon!!

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