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3" Axel back exhaust availability

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Old Jan 15, 2009 | 09:08 AM
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Default 3" Axel back exhaust availability

I know LG has the big 3 but I'd prefer and axel back that doesn't have dozens of slip fit joints. Is there any out there or will it have to be something custom?
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Old Jan 15, 2009 | 09:46 AM
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I may be wrong, but there are not many true 3" cat back systems out there. I have the BB Bullets, but they aren't comletely 3 " all the way. You might consider, installing the LG system, and then have the clamp areas welded up. I would make sure this system would be able to be pulled and installed in it's clamped up configuration, before commtting to weld unit as a whole. Good luck.
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Old Jan 15, 2009 | 10:02 AM
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Originally Posted by bumble-z
I may be wrong, but there are not many true 3" cat back systems out there. I have the BB Bullets, but they aren't comletely 3 " all the way. You might consider, installing the LG system, and then have the clamp areas welded up. I would make sure this system would be able to be pulled and installed in it's clamped up configuration, before commtting to weld unit as a whole. Good luck.
This is what I did with my LG Big 3" setup.

Yes, it can be removed and reinstalled without any issues, even with the DTE brace installed on the car.
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Old Jan 15, 2009 | 10:10 AM
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Originally Posted by vrybad
This is what I did with my LG Big 3" setup.

Yes, it can be removed and reinstalled without any issues, even with the DTE brace installed on the car.
Do you have any pics? Im just concerned about the flow from having so many welded joints in such a short axel back system. Makes no sense to me why they made it so many joints except to save money on there end.
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Old Jan 15, 2009 | 10:27 AM
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Originally Posted by Blu
Do you have any pics? Im just concerned about the flow from having so many welded joints in such a short axel back system. Makes no sense to me why they made it so many joints except to save money on there end.
The main reason for several pieces is to allow adjustment during fitting to the car, since there are always small variations between vehicles that need to be corrected for, to get all the pipes and tips straight.

Welding the joints has no negative effect on flow.
With 3" exhaust, you have very little to worry about in that regard.
All the joints are still 3" all the way thru.



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Old Jan 15, 2009 | 10:30 AM
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It is a nice looking system, I might get it once they run a special again, right now its just well out of the budget.
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Old Jan 15, 2009 | 11:29 AM
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How much additonal rwhp can be seen with the 3" setup over the 2.5" setup on a 346ci?
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Old Jan 15, 2009 | 11:31 AM
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We carry the Stainless Works 3" Axle Back. This system is made from 304 stainless steel and has dual 4" slash cut tips. Here's a video clip http://www.youtube.com/watch?v=8ts6aM5lL8c

Let me know if you're interested. I can get you a great deal on this axle back. I have it in stock and with free shipping.

Seth
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Old Jan 15, 2009 | 11:59 AM
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I HAVE THE COMPLETE 3" Stainlessworks system on my 02 ZO6. I really like it Its 3" alllll the way. I have the Two Tip system. It was fairly tame at idle and rips at WOT. Since my heads/cam/FAST 90/90 install, WOW! It's nice and LOUD and has a bit more resonance than it did without the additional cam lift and duration!

Ill send pics of the system installed when I get home.

Bill

Last edited by Bill Curlee; Jan 15, 2009 at 12:01 PM.
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Old Jan 15, 2009 | 12:05 PM
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Originally Posted by 11sec_C5Z51
How much additonal rwhp can be seen with the 3" setup over the 2.5" setup on a 346ci?
On a N/A car, there may be a small improvement, but it really benefits a turbo car like mine.
(I think LG picked up 17-20 rwhp or so.)
I'd have to look at their site to check it again.
From what I've seen, exhaust is a bigger factor on turbo setups than on N/A or SC setups.
I don't think there have been any specific tests done to determine the actual outcomes.
I was told by someone on this forum(can't remember who) that they picked up 40-50rwhp going from 2.5" to 3" on their turbo car.
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Old Jan 15, 2009 | 12:46 PM
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Originally Posted by Bill Curlee
I HAVE THE COMPLETE 3" Stainlessworks system on my 02 ZO6. I really like it Its 3" alllll the way. I have the Two Tip system. It was fairly tame at idle and rips at WOT. Since my heads/cam/FAST 90/90 install, WOW! It's nice and LOUD and has a bit more resonance than it did without the additional cam lift and duration!

Ill send pics of the system installed when I get home.

Bill
How loud is loud? I don't mind a little noise but I dont want an annoying drone or ear piercing loud at WOT/redline. It will be going on a H/C not catted exhaust so Im a little worried about the noise factor. Planning the upgrade bc of the future 416 build.

Matt
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Old Jan 15, 2009 | 06:26 PM
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We have the four tip and two tip systems in stock.

Give one of us a call here and I'm sure we can get a set going to you.

Once everything is tightened down the slip fits do not pose any concern.
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Old Jan 15, 2009 | 09:03 PM
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Originally Posted by Blu
How loud is loud? I don't mind a little noise but I dont want an annoying drone or ear piercing loud at WOT/redline. It will be going on a H/C not catted exhaust so Im a little worried about the noise factor. Planning the upgrade bc of the future 416 build.

Matt

When I had JUST a Header/randomtech high flow cat's/VARARAM install, there was almost ZERO Drone and the Bb level was very livable at idle and WOT. It sounds very good at WOT. I got LOTS of complements. My wife liked it.

CAR on dyno with Vararam and Stainless Works system.



After the HEADS/CAM/FAST90/90 install, allthat changed. The idle Bb is higher (nothing extreme) and mid throttle/cruise has some drone. NOTHING THAT EXTREME!) WOT hammering the throttle will grab attention! Its much louder than before. Nothing annoying but its a lot louder.

Its a very well designed system and it fits the car VERY WELL!











C5 Z on dyno after heads cam fast install:



Results = 450 RWHP 400++ Tq My clutch slips BAD! Im estamating 420-440 Tq. Re Dyno after new Spec duel disk clutch install.
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Old Jan 16, 2009 | 06:41 AM
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Originally Posted by Anthony @ LGMotorsports
We have the four tip and two tip systems in stock.

Give one of us a call here and I'm sure we can get a set going to you.

Once everything is tightened down the slip fits do not pose any concern.
your system is nice but its just way out of budget right now for an exhaust especially the way the stock market is treating me right now.

The SW system is somewhat affordable from the price quote I got but Im afraid its just going to be way to loud with the rest of my setup and without cats.
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Old Jan 16, 2009 | 07:36 AM
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Originally Posted by 11sec_C5Z51
How much additonal rwhp can be seen with the 3" setup over the 2.5" setup on a 346ci?
Unless your running LT Headers, may not be that much. However, that said the larger exhaust diameter does provided LESS back pressure, especially if your running straight pipes, or some straight though type muffler system, ie no bends in the pipe.

It will also be LOUDER guys. So if your into soft jazz or quite time with the significant other on a nice pieceful drive, for get it.
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Old Jan 16, 2009 | 09:22 AM
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Originally Posted by AU N EGL
Unless your running LT Headers, may not be that much. However, that said the larger exhaust diameter does provided LESS back pressure, especially if your running straight pipes, or some straight though type muffler system, ie no bends in the pipe.

It will also be LOUDER guys. So if your into soft jazz or quite time with the significant other on a nice pieceful drive, for get it.
On an NA setup, I agree it will be louder.
Unfortunately, there haven't been enough examples used to really tell.
Noise level is so subjective.

I will say on my TT, the noise level with the LG 3" and full 3" exhaust(with cats) is VERY pleasant, never an issue, but I do think it has a lot to do with the turbos, and cats, that lessen the noise level.
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Old Jan 17, 2009 | 08:43 AM
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Lets see on my TPIS LTs, Random Tech high flow cats then 3" the remainder with straight pipes no mufflers at full WOT the car is at 105 dbs from 50 feet.



little bit above most city noise ordinances. heck when I start the car in the garage, the dog gets scared and the hose shakes.

and I have not put on my LG Pros YET
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Old Jan 17, 2009 | 08:55 AM
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105 db!!!
That's a bit loud!
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Old Jan 17, 2009 | 12:26 PM
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OK well the SW 3" is definitely out after reading that and seeing the cutout of the muffler haha.
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Old Jan 17, 2009 | 12:35 PM
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blu got a link?
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