I want to post up to see if there would be interest in a set of long tube headers for the 5.7L motor 4x4 and 4x2 and all cab configurations.
A header manufacturer will be willing to design and make up a set of Tuned Long tube headers.
some of the specs thus far are:
3/8" exhaust flange
1 3/4" primaries
try-y design
stainless steel
3" cats moved back
removal of the 2nd set of cats, provided no issues with the O2 sensors or anything.
will be able to bolt up to aftermarket "cat-back" systems and oem exhaust.
2.5" after collector tubes.
Likely will be 28-34" in length
May or may not be coated.
They want to guage interest before commiting to making them up and what to see how many would be willing to order.
This is a header maker with a long history making Import and Domestic headers, they have been around since the late 60s and have built headers for many early and late model toyota and lexus vehicles.
The price has of course not been set because they are not done, but would range between $800 and $1100 depending on steel costs and design. I will also set up a group buy for the cheapest possible price when that time comes and will be in the group buy forum and per T/S guidelines.
This again is just to guage interest and determine whether or not the company will actually make them.
I might be interested depending on gains, over-all cost and how well the engine reacts to long-tubes.
__________________ My baby: 08 rc/sb TRD 4x4 SR5 Tundra with the 5.7 in pull me over red still can't get the stupid grin off my face Previous trucks:
81 1-ton Chevy 7.4
89 Full size Blazer 5.7
00 1500 Sierra 5.3
00 1500 Silverado 6.0
01 2500 Silverado D-max LB7
02 2500 Sierra D-max LB7
05 1500 Silverado 5.3
07 2500 Sierra D-max LMM- traded for the Tundra
The gains are guessed to be 40 - 50hp. This is based on a 10 - 15% increase in horsepower. This is what they have seen in the passed with long tubes on toyota v8 engines.
This company does not do dyno testing like most companies. Real world environment isn't in a dyno test booth, it's out on the road.
What I have done in the passed is used a G-Tech Pro which is an in vehicle dynamometer which results with real world dynos. I will also be going to the track with another T/S member and can test there with some before and after time slips as well.
I however will not be able to provide this until after they are made and they won't make them until there are enough people that want them.
The cats may be bolt on, this has not been decided. They will supply them and if you want to fab your self then it's all you. They won't be supplying everything to eliminate the cats all together though.
What you been smoken ?
40-50hp gains ?
Longtubes with Cats ?
Building LT's based on consumer feedback/interest ?
The quote below is quite amusing as well .....
If your building LT's for this or any other vehicle
and you say you wont "supply" everything needed to eliminate the cats, YOUR NOT BUILDING LONGTUBE HEADERS !
People best be fore warned ! this gig has stank all over it.
Quote:
Originally Posted by Imdone
The cats may be bolt on, this has not been decided. They will supply them and if you want to fab your self then it's all you. They won't be supplying everything to eliminate the cats all together though.
__________________
I care not who defended our freedom in the past, who defends it tommorrow is who means the world today.
The trouble with the world is not that people know too little, but that they know so many things that ain't so
- Mark Twain
Ummmm you can get longtube headers with one set of cats, my lightning had 4 cats originally, switched to longtube setup with 2 downstream hi-flow cats. Honestly you wont want to go catless, cuz 3 inch hi flows are loud! Id be in for this setup as long as its a complete kit, gaskets, hardware, cats etc. The difficulty is going to come in the fact there is no tuner avalible yet for the truck.
Yes, I would be interested in another choice to the DT/JBA offerings. Nothing wrong with those, but what you are describing is what I have been waiting for, and would not mind paying a premium for it.
40-50 hp is extremely optimistic; there is not that much room for improvement. After a supercharger and tune, then yes. Those with blower experience know great headers really open things up. On a NA vehicle half of that gain would be great.
What you been smoken ?
40-50hp gains ?
Longtubes with Cats ?
Building LT's based on consumer feedback/interest ?
The quote below is quite amusing as well .....
If your building LT's for this or any other vehicle
and you say you wont "supply" everything needed to eliminate the cats, YOUR NOT BUILDING LONGTUBE HEADERS !
People best be fore warned ! this gig has stank all over it.
40 -50 based on crank hp #s, not rear wheel #s, I don't have a dyno and don't do the dyno thing so I can only go by crank #s.
Yes with Cats, the company can't legally build something for on-road sale and delete emmision parts.
The cats will be provided with the kit, if you install them or not that is up to the end user but the company has to provide all parts to be smog legal.
The company will supply the cats, it isn't going to supply resisters or relays or in some way to "ILLEGALLY" bypass the emmisions equipment.
So yes they aren't providing something so for you to break the law, they are providing everything you need to still be legal.
This doen't have any stank on it, you just didn't read it right or I didn't explain it well enough for you to get it. Either way, everything is on the up and up.
They will however not waste their time if there is no interest in the end product, if you were a business owner designing and fabing a new product would you???
The company just wants to make sure that there will be enough of them sold to actually get into doing the design and fabing and building of them. They have to build so many at one time and if there isn't enough interest then it won't be profitable, they can't make them for free and the more they sell the cheaper they can set the price. I will get a certain # of people that want these headers and provide it to them, I will not take any money from anyone and no one will have to put any money down for this to happen, they just want to make sure that there is enough interest to make it worth their time. This will be a completely bolt on set up, the only thing the end user may want to get is a set of OEM exhaust manifold gaskets, Usually Toyota's OEM gaskets are better than the aftermarket stuff.
It is set to come with, headers, 1 pair of cats either welded up or flange bolt-ons, gaskets for exhaust manifold and 2 bolt flange to meet up with the muffler pipes, hardware for installation, and extensions for O2 sensors. They will likely provide hardware for the install of the headers to the manifold but depending if they are like the gen 1s with the studs and compression nuts it may be best to use the OEM equipment on this as well since they are aluminum heads and a stainless bolt could strip the thread right out if they are tightend too tight.
They have concerns though being stainless steel by itself isn't cheap and the tooling it requires to make headers and collectors wears out faster than if doing mild steel so there is a higher expense for stainless.
Basically they just want to make sure it is worth it.
They have built headers for the Gen 1 Tundra and it wasn't Kook's Headers.
They will not be CARB legal. They won't do the CARB testing.
If they wont do the CARB testing thats pretty well PROOF Enough.
Quote:
Originally Posted by Imdone
The company just wants to make sure that there will be enough of them sold to actually get into doing the design and fabing and building of them. They have to build so many at one time and if there isn't enough interest then it won't be profitable, they can't make them for free and the more they sell the cheaper they can set the price. I will get a certain # of people that want these headers and provide it to them, I will not take any money from anyone and no one will have to put any money down for this to happen, they just want to make sure that there is enough interest to make it worth their time. This will be a completely bolt on set up, the only thing the end user may want to get is a set of OEM exhaust manifold gaskets, Usually Toyota's OEM gaskets are better than the aftermarket stuff.
It is set to come with, headers, 1 pair of cats either welded up or flange bolt-ons, gaskets for exhaust manifold and 2 bolt flange to meet up with the muffler pipes, hardware for installation, and extensions for O2 sensors. They will likely provide hardware for the install of the headers to the manifold but depending if they are like the gen 1s with the studs and compression nuts it may be best to use the OEM equipment on this as well since they are aluminum heads and a stainless bolt could strip the thread right out if they are tightend too tight.
They have concerns though being stainless steel by itself isn't cheap and the tooling it requires to make headers and collectors wears out faster than if doing mild steel so there is a higher expense for stainless.
Basically they just want to make sure it is worth it.
They have built headers for the Gen 1 Tundra and it wasn't Kook's Headers.
They will not be CARB legal. They won't do the CARB testing.
Thanks
__________________
I care not who defended our freedom in the past, who defends it tommorrow is who means the world today.
The trouble with the world is not that people know too little, but that they know so many things that ain't so
- Mark Twain
Long Tube header interest
still can't get the stupid grin off my face
2008 Toyota Tundra DC 2WD 5.7L V8 X-SP, Silver Sky Metallic. 
YOUR NOT BUILDING LONGTUBE HEADERS !
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