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Discussion Starter · #1 ·
OK I am definitely ready to buy the Gibson catback but when I searched on TruckPerformance.com for one, they only have kits for a single in, and I have a dual in muffler. This is a problem. I really want this Gibson but I am going to be royally PO'd if they don't make a compatible kit for my Explorer.



Anyone know if they have more kits then whats just listed on TruckPerformance? I am going to call John V. at EE tomorrow but I was wondering if any of you knew anything off hand.
 

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Discussion Starter · #3 ·
Unbelievable, they don't make it for my Explorer
:roll:
 

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Yea, sorry to say they don't. I just got their dealer catalog in the mail yesterday and it only lists a 2.5" single in/out system for the 99 2 door.



Chad
 

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Discussion Starter · #5 ·
Blah. What I don't get is Matt (Black Magic) has a Gibson catback on his 2-Door sport and he has the SOHC engine. I guess Ford changed it to a single in starting in 2001. And I do know that not all 99 Sports have a dual in either, which I think is odd. Crazy Ford :roll:
 

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Wow that is odd. Kinda sucks nuts though for you. I had no idea Ford even put a dual in on some of the SOHCs.
 

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Discussion Starter · #7 ·
Wow that is odd. ?Kinda sucks nuts though for you. ?I had no idea Ford even put a dual in on some of the SOHCs.
In terms of performance, is it better to have a dual in? Or does it not really make any difference? My guess is its better, because you have more airflow, but I could be wrong?!
:
 

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You may be right but that wouldn't make any sense because the exhaust is the same and it can only move so much air out of the engine. I don't think there is a benefit to the dual in IMO.
 

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Rob,



Just to clarify; you have a dual out from your Cat into your muffler? If so, is it a dual in to the cat or dual cats? This could still be a possibility for you, it just may be about 40 bucks more. to make it work. I'm sending you a PM as well...
 

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Discussion Starter · #10 ·
Here's a picture I took of the piping going into my muffler....no clue if it will help:







I can take better pictures and also pictures of the cat going backwards (towards the rear end) tomorrow...
 

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When Gibson lists the compatible Explorers, does 2dr and 4dr matter? All I see for a 95-96 4.0 is 4dr.
 

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Discussion Starter · #12 ·
Yes it does because the piping will be longer for 4-doors...



I already checked out Gibsons site, they don't make them for my Explorer. Also I have a '99 Explorer, not a 95-96.
 

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Yes it does because the piping will be longer for 4-doors...



I already checked out Gibsons site, they don't make them for my Explorer. Also I have a '99 Explorer, not a 95-96.
I know, I was just wondering for my x. I guess they dont make it for mine either
 

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Rob - the muffler will not be your problem. You should have basically 4 cats. 2 on each side. One is the pre-cat (first next to manifolds) then the cat itself. Then they will both come together into the muffler. Doesn't matter if they have a single in muffler or a dual in muffler - both sides will combine somewhere before the muffler or into the muffler.



The best way to do your exhaust is find a local shop that will do your exhaust from the manifolds back. Either do 1) a 2-in-2-out cat with a 2-in-2-out muffler and run duals, 2) a 2-in-2-out cat with a 2-in-1-out muffler and run a single exit, 3) run 2 cats (one for each side) into a 2-in-1-out muffler and a single exit, or 4) 2 cats and 2 mufflers with duals. Do this with either 2.25" or 2.5" pipe. The 4.0 does not push airflow enough to warrant 3" pipe - you will lose some that way.
 

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Discussion Starter · #15 ·
Whoa Cobra that is way, way WAY too much work just for an exhaust. I don't want or need all that stuff done, all I want is a simple bolt on kit like the Gibson. I don't even want to have to worry about the catalyctic converters whatsoever.



BTW right now I do have a Flowmaster 50 series on with a 3" exit pipe + cold air intake. I don't know if I'm technically losing torque but I do know that i have a hell of a lot better acceleration then my crappy stock setup.



BTW If I can't get a Gibson kit to work, then I am just going to say the hell with it and just buy a Gibson stainless steel tip and get that welded on. I don't really hate the Flowmaster, I just wanted a stainless steel catback exhaust.
 

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I looked on Truck Performance for the prices. Looks like $255 for aluminized or $345 for stainless. Not trying to talk you into more than you want, but I had a 2-in-2-out hi flow Catco cat put on with a 2-in1-out Flowmaster 40 series and 3" stainless pipe all the way through done for $350 by a custom shop...



I doubt you are losing anything with the 3" pipe now - just because you still have basically the same setup as a stock exhaust - just a different muffler and exit pipe. The real restriction comes from around the cats.



For the money, I would have it done custom - but thats me. I have never liked the catback systems because they are really nothing more than a muffler and pipe. They don't do anything that a regular shop could do for half the money. JMO of course....



Just trying to help brother....
 

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Discussion Starter · #17 ·
Well, you might be onto something...
 

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Rob,



Have you talked to any one at Gibson? I know they don't list a kit that works with your dual-in configuration, but they make just about every conceivable muffler configuration. Maybe it would be just a matter of swapping a different muffler into the standard kit to make it work for you.



Just a thought. I could be full of crap (again), but it would be worth a phone call if its something you really want to get done.
 
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