Nissan Armada & Infiniti QX56 Forums banner

1 - 20 of 24 Posts

·
Banned
Joined
·
1,215 Posts
Discussion Starter #3
Bump, price reduction on all Gibsons! We were able to get better deal on our end and as passing on the savings :)
 

·
Premium Member
Joined
·
80 Posts
Does anyone have any pics of the Gibson installed on there ride??
 

·
Banned
Joined
·
1,215 Posts
Discussion Starter #5
Anyone wanting a gibson, I encourage you to order soon. After dec 31 2007, gibson is raising pricing about 5%. If you want an exhaust, order soon. I've sold just about EVERY exhaust and for the money, these system are a great deal.
 

·
Premium Member
Joined
·
403 Posts
Jason...

What's the diameter on the Gibson piping? After crawling under my 'mada I measured mine to be somewhere around 2"-2 1/2". I was curious as to how much of a size increase I'm looking at in regards to the piping diameter.

Thanks in advance!

~ Zire
 

·
Premium Member
Joined
·
5,215 Posts
2 1/2" Y pipes joining into a 3" into the muffler. The muffler is a 3" straight through with a 3" tail pipe and a 3 1/2" tip.
It is a nice system; I think you would be pleased with it.
 

·
Premium Member
Joined
·
403 Posts
scr38 said:
2 1/2" Y pipes joining into a 3" into the muffler. The muffler is a 3" straight through with a 3" tail pipe and a 3 1/2" tip.
It is a nice system; I think you would be pleased with it.
Thanks scr38... however I have one more question regarding the Gibson system, and I may be showing my complete inability to capture what it is I'm trying to say exactly, but I'll give it shot:

First, does the Armada come stock with a 2 1/2" pipe from the cat to the muffler? If so, then why replace that section of stock piping with the Gibson? Why not just purchase a new muffler and piping from the muffler to the tip? Does that make any sense?

Really, I'm just looking for the most cost effective way to up the hp, gain a little grumble, and not break the bank. I'm more than happy to pick up the Gibson system if it's worth it, but I surely don't want to 'waste' my money by replacing stock piping with the same diameter new piping.

Thanks!

~ Zire
 

·
Premium Member
Joined
·
5,215 Posts
Zire said:
Thanks scr38... however I have one more question regarding the Gibson system, and I may be showing my complete inability to capture what it is I'm trying to say exactly, but I'll give it shot:

First, does the Armada come stock with a 2 1/2" pipe from the cat to the muffler? If so, then why replace that section of stock piping with the Gibson? Why not just purchase a new muffler and piping from the muffler to the tip? Does that make any sense?

Thanks!

~ Zire
That makes sense. But there are reasons to go with the entire system.
The stock Y pipe is 2 1/4", which is fine.
But I like the Gibson better:
1. The Gibson Y pipe is a one piece assembly; the stock Y pipe is two pieces, and has a clamped joint under the transmission where the two connect.
2. On the 04-06 Armadas the stock Y pipe has a poor design where the two head pipes join into the single 3" pipe. The two pipes are flattened so they can be merged into the 3" pipe. See a cut away of this in the attached photo.
3. The Gibson head pipes merge smoothly into a true collector to the 3" pipe.

On the 07-08 Armadas the two head pipes run all the way to the muffler, so they don't have the problem where the pipes merge, but they still have the extra joint in the left head pipe.
 

Attachments

·
Premium Member
Joined
·
252 Posts
I've read quite a few postings saying that the fittings aren't the best and leak quite a bit. Has Gibson done anything to resolve this?
 

·
Premium Member
Joined
·
403 Posts
scr38 said:
That makes sense. But there are reasons to go with the entire system.
The stock Y pipe is 2 1/4", which is fine.
But I like the Gibson better:
1. The Gibson Y pipe is a one piece assembly; the stock Y pipe is two pieces, and has a clamped joint under the transmission where the two connect.
2. On the 04-06 Armadas the stock Y pipe has a poor design where the two head pipes join into the single 3" pipe. The two pipes are flattened so they can be merged into the 3" pipe. See a cut away of this in the attached photo.
3. The Gibson head pipes merge smoothly into a true collector to the 3" pipe.

On the 07-08 Armadas the two head pipes run all the way to the muffler, so they don't have the problem where the pipes merge, but they still have the extra joint in the left head pipe.
Thanks again!! I appreciate the info.

I'm going to give my exhaust/muffler guy a ring and see what we can work out.

~ Zire
 

·
Banned
Joined
·
1,215 Posts
Discussion Starter #12
scr38 said:
That makes sense. But there are reasons to go with the entire system.
The stock Y pipe is 2 1/4", which is fine.
But I like the Gibson better:
1. The Gibson Y pipe is a one piece assembly; the stock Y pipe is two pieces, and has a clamped joint under the transmission where the two connect.
2. On the 04-06 Armadas the stock Y pipe has a poor design where the two head pipes join into the single 3" pipe. The two pipes are flattened so they can be merged into the 3" pipe. See a cut away of this in the attached photo.
3. The Gibson head pipes merge smoothly into a true collector to the 3" pipe.

On the 07-08 Armadas the two head pipes run all the way to the muffler, so they don't have the problem where the pipes merge, but they still have the extra joint in the left head pipe.
Correct, you know your stuff :) And about a 20 HP gain to boot!
 

·
Premium Member
Joined
·
5,215 Posts
jakmobile said:
I've read quite a few postings saying that the fittings aren't the best and leak quite a bit. Has Gibson done anything to resolve this?
The fit is fine. I would like to see Gibson use better clamps, however I have had the Gibson installed for almost three years and have had no leaks.
 

·
Premium Member
Joined
·
49 Posts
Jason B, do you have any dyno charts that show a 20 horse increase with only a Gibson exhaust? I've had exhaust systems on every truck/suv I've ever owned; the last system being a Corsa cat back. For years I bought into the advertising regarding significant horsepower gains resulting from the addition of xyz exhaust system, and never saw such gains myself. In fact on a few trucks I owned years ago, I actually lost low end grunt by adding a cat back system, and compromised my off the line acceleration. I'll admit, I didn't know much about the importance of pipe diameter then and now realize that I had reduced my backpressure to much. However, even on my best applications, like my recent Corsa system, I only saw 2 more horses on the dyno which could have been attributable to a number of other factors.

I say, If you like the sound of an aftermarket system, then go for it, otherwise, your performance money is better spent elsewhere.
 

·
Banned
Joined
·
1,215 Posts
Discussion Starter #15
Yes, check the Titan forum. Also, remember, this is a V8 that just loves more air. More than just about any pick-up I've seen. Any mod to the intake or exhaust just reaps tons of power on THIS engine.
 

·
Banned
Joined
·
1,215 Posts
Discussion Starter #16
For those that don't know, Gibson had a price increase a while back and we still have not change/updated our prices on the website[/b], so anyone wanting a great system, you will be getting a great deal!

These prices will only be good until the end of this month! Those that want a great system at a great price, order soon!

http://www.burtmanindustries.com/zoomprod.php?id=arm_gib_exhst_04_up



Full description on link above!
 

·
Premium Member
Joined
·
40 Posts
I just ordered the system from Jason to replace a rusted out muffler/tail piece connection. I should see an improvement in overall performance with the Injen CAI and BDPP already on the truck.

I will post the results once installed.
 

·
Premium Member
Joined
·
359 Posts
Reaper - any results to post?
 
1 - 20 of 24 Posts
Top