ARCHIVE 100 Series Cat-back Exhaust

[Brock]

you will just go limp

 

[lesgarten]

you will just go limp

Zactly!

 

[lexi4darin]

The newer 100 series mid-pipes should be ready to ship the week of Dec 17th.

Looks like we have 2 coming your way. One for one of your customer's rigs and one for your truck

We're happy to be able to offer performance parts to such a great community of owners. The donor vehicle is being dropped off around the new year for the header mockup and testing. I'll keep you guys updated on the progress as we get to the headers as it seems many people are excited to see how they turn out.

Guys and fellow Mudders lets pump the brakes. While I'm happy for another vendor's success in our lil community I'd like to see more credibility other than their marketing department claims.

As you can see from posts ~95-125 EMS made some pretty strong claims and have yet to substantiate them. In an effort to substantiate, and from a neutral 3rd party prospective, a Mudder volunteered to test these systems. Both EMS and DT responded with excitement and plans to ship their units in a head-to-head to be tested in an unbiased 3rd party scenario.

This was months ago and at this point in time all I've heard is... DT has stepped up to the plate with NO questions asked and no hesitations, yet this community is still waiting for EMS to answer the call.

I'm taking the wait and see approach with this one. And suggest we all wait to see if EMS has what it takes ...

Put up or up or else my money goes to the guys that put their out there on the chopping block. That's truly Made-In-America.

 

[lesgarten]

Nut up or up or else my money goes to the guys that put their out there on the chopping block. That's truly Made-In-America.

FIFY

Nut Up or Shut Up

 

[lesgarten]

I have a question about the "Mandrel Bent" exhaust which is where this system is supposed to end up.

I looked over the EMS website and none of the exhaust systems were mandrel bent as I think the term applies?? All the systems I looked at were welded up piecemeal.

Can you advise if this system will be mandrel bent and when?

 

[PoppaWheelie]

On the number of welds. This is how our production usually goes with most of our products:
1- prototype and r&d work done with pre-bent mandrel 180 sections of pipe that are cut and shaped to fit the way we want.
2- first few production runs are built using pre-bent mandrel bends that are hand cut and hand shaped to our precise jigs.
3- we have our pipes 3d scanned and each section of pipe is mandrel bent as one piece by a highly accurate computerized CNC bending machine. After this batch is ready then all assemblies going forward are built using the custom bent sections.

Either with the pre-bent mandrel sections or with the cnc mandrel bent sections the quality and fitment is 100% perfect, strength is the same, and longevity is the same. We TIG weld all of our assemblies with 308L, 100% pure argon shielding gas, and all piping and flanges used are true 304 stainless steel.

I have a question about the "Mandrel Bent" exhaust which is where this system is supposed to end up.

I looked over the EMS website and none of the exhaust systems were mandrel bent as I think the term applies?? All the systems I looked at were welded up piecemeal.

Can you advise if this system will be mandrel bent and when?

It was way back on page 2

I still haven't heard if the kits that are being shipped are "mandrel bent" yet?

 

[J-man]

I have a question about the "Mandrel Bent" exhaust which is where this system is supposed to end up.

I looked over the EMS website and none of the exhaust systems were mandrel bent as I think the term applies?? All the systems I looked at were welded up piecemeal.

Can you advise if this system will be mandrel bent and when?

if you look closely at the kit pics, you'll see that the sections of pipe that are tig'd together are cut sections of mandrel bent pipe and not crush-style bends that would restrict flow. They are some seriously free flowing pipes...and in my experience as long as the tig welds are all done with the same stainless rod...there's no worry of anything breaking.

 

[lesgarten]

if you look closely at the kit pics, you'll see that the sections of pipe that are tig'd together are cut sections of mandrel bent pipe and not crush-style bends that would restrict flow. They are some seriously free flowing pipes...and in my experience as long as the tig welds are all done with the same stainless rod...there's no worry of anything breaking.

Goes back to promises and claims.

The promise was that these were R&D pipes and going forward that production pipes would be nice smooth mandrel bent pieces, eventually.

Also, remember these are claims and promises meant to justify one products quality against the other companies product. They also are presumably to justify the much higher cost of the product.

Personally I would prefer one contiguous piece of SS pipe to one welded up from 4-5 separate pieces or so.

Then there's my other observation that I didn't see any of the CNC bent systems among any of the pipes they sell on their webpages.

 

[NKP Garage]

I have a question about the "Mandrel Bent" exhaust which is where this system is supposed to end up.

I looked over the EMS website and none of the exhaust systems were mandrel bent as I think the term applies?? All the systems I looked at were welded up piecemeal.

Can you advise if this system will be mandrel bent and when?

ALL of our exhaust, header, and intake systems are mandrel bent. Some items are built using mandrel bent sections that are welded together, and some items are one piece mandrel bent with fewer welds. All of our stainless steel piping is always going to be 304 stainless steel. Not cheap 409 stainless. All of our piping is always mandrel bent, we never use crush bends. All of our welds on 304 stainless are always precision TIG welded with 308L. Our welds are always stronger than the actual metal being welded. Our welds outlast and are stronger than the metal around them.

if you look closely at the kit pics, you'll see that the sections of pipe that are tig'd together are cut sections of mandrel bent pipe and not crush-style bends that would restrict flow. They are some seriously free flowing pipes...and in my experience as long as the tig welds are all done with the same stainless rod...there's no worry of anything breaking.

Correct!

 

[Layonnn]

Personally I would prefer one contiguous piece of SS pipe to one welded up from 4-5 separate pieces or so.

This would be extremely difficult to do, if not impossible.

 

[lesgarten]

This would be extremely difficult to do, if not impossible.

Then I must have misunderstood what this means??

3- we have our pipes 3d scanned and each section of pipe is mandrel bent as one piece by a highly accurate computerized CNC bending machine. After this batch is ready then all assemblies going forward are built using the custom bent sections.

Something like this Ithought:

 

[bamabrock]

Then I must have misunderstood what this means??


Something like this Ithought:

You did misunderstood what that meant. They stated and you quote:

each section of pipe is mandrel bent as one piece

 

[lesgarten]

You did misunderstood what that meant. They stated and you quote:

I would consider "a section of pipe" from Flange to Flange. There are numerous exhaust companies doing just that. It makes sense from a manufacturing POV. Bend of a piece instead of weld up a bunch of pieces. I thought that was what a CNC bender was meant to do??

There are much better examples than this out there, I just don't have them offhand.

http://www.andysautosport.com/chevrolet/1967_1969_camaro/performance/exhaust/exhaust_systems/stainless_works/eric00002683.html

 

[bamabrock]

We all realize what you meant the first time but you misunderstood what was stated.

 

[lesgarten]

We all realize what you meant the first time but you misunderstood what was stated.

Ok, I'm all for enlightenment.

Explain how this(below) is different from what is being done now?

3- we have our pipes 3d scanned and each section of pipe is mandrel bent as one piece by a highly accurate computerized CNC bending machine. After this batch is ready then all assemblies going forward are built using the custom bent sections.

 

[bamabrock]

You're repeating yourself now. If you dont like it, dont buy it. I'm not sure what your problem is but now you're just hijacking a thread.

 

[JDMGoodness]

Mine just shipped out. Looking forward to the hp gains.

 

[lesgarten]

First, Thread Hijacking means taking a thread off topic. I'm on Topic here. I am asking the Owner of the Company to explain, calrify, or update one of his posts that describe his production procedures and progression of production phases. I want to know what phase he is in now, and if his product has changed from the original pix, or current website pix, or is going to change. Very simple. I am interested in buying the product and want to know what is being sold now as well as in the near future.


Here is the Original Post #31, sorry for quoting the whole thing, but I want the context to be clear.

Quote:
Originally Posted by AimCOtaco

One quick difference I note is that the heavy flanges make the system long term serviceable. Most of what I have seen from exhaust shops have re-used rusty flanges and weld new tubing to them. Also, not all muffler shops use mandrel bent tubing and add some restriction as a result of kinked bends.

The EMS system looks well designed and I certainly appreciate the quality flanges and clamps, I would prefer fewer welds between sections however. It appers the EMS may be built from many off the shelf pre-bent parts (thats how I have home built in the past anyway).

One thing I have not seen presented is tubing wall thickness of the EMS and DT systems which could also impact long term durability especially for off road use.

On the other hand I had a local shop chop in a magnaflow to the oem piping and delete the resonator for <$200 so I'm pretty happy for awhile. The EMS looks like it would flow and last much better than what I have now however. I have not looked too hard at the DT system yet. /end ramble

Quote BaktashT:
On the number of welds. This is how our production usually goes with most of our products:
1- prototype and r&d work done with pre-bent mandrel 180 sections of pipe that are cut and shaped to fit the way we want.
2- first few production runs are built using pre-bent mandrel bends that are hand cut and hand shaped to our precise jigs.
3- we have our pipes 3d scanned and each section of pipe is mandrel bent as one piece by a highly accurate computerized CNC bending machine. After this batch is ready then all assemblies going forward are built using the custom bent sections.

Either with the pre-bent mandrel sections or with the cnc mandrel bent sections the quality and fitment is 100% perfect, strength is the same, and longevity is the same. We TIG weld all of our assemblies with 308L, 100% pure argon shielding gas, and all piping and flanges used are true 304 stainless steel.

So referring to the number of welds, BaktashT describes a 3 Phase course of production. He numbers them 1,2, and 3. I'm asking what phase is being shown on his webpage presently(where the product is being sold), and what Phase is being sold presently? Those could be two different answers. Maybe the photos have not been updated, maybe they have. I'm asking.

If he is not in Phase 3, when will that happen? And how will it change the product?

These seem like common sense questions for someone wanting to buy the system.

This is as straight forward a way I can come up with to ask the question.

 

[NKP Garage]

Just to share, Video of one of the dyno runs during testing that we were doing: http://youtu.be/7jt2egWPjVI

 

[NKP Garage]

lesgarten, a complete answer to your questions would be very long. If you'd like, give us a call at the shop anytime and I'd be happy to go over the details with you of how production works on mandrel bent systems