Will OBX LT's + ROR = deafness?
Thread Starter
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Senior Member
Joined: Nov 2005
Posts: 17,118
Likes: 7
From: Burleson, Texas
Did find this wonderful install guide on the Dynatech site. 
http://www.dynatechheaders.com/instr...o08_2WD4WD.pdf
http://www.dynatechheaders.com/instr...o08_2WD4WD.pdf
Senior Member
Joined: Aug 2010
Posts: 453
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From: Mesa, AZ
You will NOT be dissappointed 
....The wife still asks me why I always want to drive my truck over her car when we go out. 
Oh and I HIGHLY suggest re-tapping the threads on the block and cleaning them out. GL
....The wife still asks me why I always want to drive my truck over her car when we go out. Oh and I HIGHLY suggest re-tapping the threads on the block and cleaning them out. GL
Did find this wonderful install guide on the Dynatech site.
http://www.dynatechheaders.com/instr...o08_2WD4WD.pdf
http://www.dynatechheaders.com/instr...o08_2WD4WD.pdf
also just a side note... With the correct extension, rachet, and socket the starter is SUPER easy to remove. I wish I wrote down and measured which combo I used as you only have about 1" of play to fool around with....
Thread Starter
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Senior Member
Joined: Nov 2005
Posts: 17,118
Likes: 7
From: Burleson, Texas
OK, OBX LT headers w/cats, locking bolts, and O2 extensions ordered.
I decided to go with extensions rather than extending the wires myself or going with longer O2's. I know people on either side will argue with my decision but after all the research I feel comfortable that the extensions will work fine. If not then I know the alternative.
I think my neighbors are going to hate their 5:30am wakeup call every morning.
I decided to go with extensions rather than extending the wires myself or going with longer O2's. I know people on either side will argue with my decision but after all the research I feel comfortable that the extensions will work fine. If not then I know the alternative.
I think my neighbors are going to hate their 5:30am wakeup call every morning.
Technical Article Contributor
Joined: Apr 2009
Posts: 10,697
Likes: 14
From: In the fast lane from LA to Tokyo...
I have a slight exhaust manifold leak. I still have the stock exhaust manifolds. Not throwing any codes, but I do have inspection coming up next month. :o
So, I've been contemplating getting OBX LT's with high flow cats for a while now. Thing is I have the rear exit ROR exhaust. Sounds great.
My question is if I add the LT's to the ROR, will my exhaust be too loud? I'm thinking it won't be when I'm cruising, which is what I do most of the time, highway miles.
Thoughts?
Also, fill me in on the O2 extension deal. How many? Easily made, or easier to buy?
Thanks, all.
So, I've been contemplating getting OBX LT's with high flow cats for a while now. Thing is I have the rear exit ROR exhaust. Sounds great.
My question is if I add the LT's to the ROR, will my exhaust be too loud? I'm thinking it won't be when I'm cruising, which is what I do most of the time, highway miles.
Thoughts?
Also, fill me in on the O2 extension deal. How many? Easily made, or easier to buy?
Thanks, all.
Thread Starter
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Senior Member
Joined: Nov 2005
Posts: 17,118
Likes: 7
From: Burleson, Texas
As long as it doesn't drone on me while driving normally I'm not going to be altering the ROR catback. If and when I do put on my 3DCarbon skirt kit I'll have to re-do the catback to a side exit and sell the ROR exhaust.
Technical Article Contributor
Joined: Apr 2009
Posts: 10,697
Likes: 14
From: In the fast lane from LA to Tokyo...
One more tidbit....
Have you talked to Bill@PHP about rewriting your strategy?
With the new O2 locations the transfer function will be slightly altered.....
Have you talked to Bill@PHP about rewriting your strategy?
With the new O2 locations the transfer function will be slightly altered.....
Thread Starter
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Senior Member
Joined: Nov 2005
Posts: 17,118
Likes: 7
From: Burleson, Texas
William,
Long-Tube Headers historically will cause a slightly lean condition due to the improved scavenging of the cylinders and subsequent (small) rise in volumentric efficiency. Looking at your existing tunes I really don't think there would be a problem, but considering that you're combined with high flow cats you might want to go ahead and have some minor tweaking done on the files just to keep things safe.
I hope this is helpful.
Bill Cohron
Power Hungry Performance
Technical Article Contributor
Joined: Oct 2005
Posts: 25,641
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From: MI
Yea, I'm not sure what needs to be changed adding LT's, - It's not even worth messing with IMO, -specially if you've already been tuned for an intake. I believe Mike has mentioned that somewhere.
Personally, I'd also purchase O2's that fit the install, but to each his own. Yea,-Screw all those connections, -the less the better.
Personally, I'd also purchase O2's that fit the install, but to each his own. Yea,-Screw all those connections, -the less the better.
Thread Starter
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Senior Member
Joined: Nov 2005
Posts: 17,118
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From: Burleson, Texas
Yeah, I'm fairly comfortable with the custom tunes the way they are since Bill thinks they are fine. But I have to hand it to him, he's a good businessman. He put in there just enough to make me possibly want more tunes.
If the extensions give me a code or whatnot I'll get different O2's.
If the extensions give me a code or whatnot I'll get different O2's.
Technical Article Contributor
Joined: Oct 2005
Posts: 25,641
Likes: 19
From: MI
Yeah, I'm fairly comfortable with the custom tunes the way they are since Bill thinks they are fine. But I have to hand it to him, he's a good businessman. He put in there just enough to make me possibly want more tunes.
If the extensions give me a code or whatnot I'll get different O2's.
If the extensions give me a code or whatnot I'll get different O2's.
This is good unless to much is added and contaminates the majority of the connector pin. O2 wires/pins are sensitive.
Other than that and most likely, it's plug and play.