Aikido,

While it is impossible to say for certain without test fitting, my guess is that these should bolt on and work for you. Did Toyota change something preventing the use of the current aftermarket headers?

 

CONFIRMED INTEREST

When this project began a large number of people committed to buying a set of headers when available. Recently, I sent notices to everyone on my list to re-confirm their interest and intent. This commitment is to purchase a set of these headers when available at $400 for uncoated mild steel and $600 for Jet Hot ceramic coated mild steel. No up front deposit is required only an agreement to purchase a set. This information will allow the fabricator to plan how many sets he needs to build. Once the initial run is built it is hard to say when the next run will happen and/or at what price. If you have been following this thread and want to assure a set for your car just send me a PM with the following information:

Name:
Screen Name:
Email address:
Street/City/State/Zip:
Contact Phone Number:
Year and Make of Car:
Coated or Uncoated:

You can also PM me with any questions you may have or post them in this thread.

If you previously sent me a PM requesting to be added to this project and have NOT been receiving emails from me... please re-submit the above information and I will add you.

Thanks to everyone for your patience and support.

 

I have been following this thread since the beginning with varying degrees of interest, but it now is starting to sound very promising. It must be satisfying to see your hard work and persistence finally paying off!
I'm glad to hear that the stock heat shields will still work since here in So. Cal. the "stealth" factor is going to be important. It may have been mentioned before, but these headers will obviously NOT be CARB certified and will not pass a visual smog inspection. The "sniff" test should be fine though, and depending on where you get your check done and how diligent the technician is, it will probably pass OK.
Definitely do NOT want to have to return to stock just to get a smog certificate!
Sure would like to see a dyno with these installed but I realize that may not happen for some time...
PM on the way!

 

Question....(I'm raising my hand)

I have a 2001 LS430, so basically these headers are direct bolt-on right? I don't need to worry about EGR (even though I don't know what's that ) and other stuff besides to custom build a cat-exhaust rihgt? I'm planning to get BLITZ intake & exhausts....so I only need to the section that's behind the Y-pipe?

Thanks......this is a very exciting news

 

im always hearing about these CARB rules out in Cali

what are some of the restrictions you guys face

and what can you get away with ???

 

These will bolt to the engine. Your 430 has 3 catalysts and they are part of your Y pipe. I do not expect your Y pipe/catalysts to work with these headers. It is remotely possible and will need to be actually checked on a car. All 430 cars (GS, LS, SC) will probably need to build a new Y pipe.

Many have PM'd me asking what the ceramic coating is actually for. It protects the steel making the manifolds last a very long time. It reduces heat loss which increases velocity, performance and reduces underhood heat. It also makes the pipes quieter.

Noise wise these manifolds should be unnoticable at idle, light throttle and cruise (assuming stock exhaust). They will probably be slightly louder at full throttle.

CARB stands for California Air Resources Board and is the ruling party for emissions testing. Technically ALL engine parts that deviate from OEM must be CARB approved or they are illegal for installation on polution controlled cars in California. Since CARB is the strictest in the country any part that has a CARB E.O. number (Exemtion Order) can be legally installed on the specific application for which the E.O. was granted. Now, if the part goes unnoticed by the emission testing technician... you can get away with it. That is why Future is happy that the heat shields (1998-2000 only) fit on the passenger side and probably the drivers side. Now, in order to actually run the heat shields the headers will need bolt brackets for the shields. At this point we haven't crossed that bridge. Stay posted.

 

ok next question

what dont you know

great answer

im on the list

oh and im patient

when they get done is when they get done ....

 

Thanks John for covering that so well! Yes, a set of light blue headers peaking out at the smog technician would be difficult to "explain".
That is one reason I still have my K&N FIPK on the car instead of the SRT intake (no CARB cert. yet). They want to see the E.O. sticker on anything that is not stock. Unless of course-as John mentioned correctly- you can find a technician who "misses" something on the visual check (sorry, sir- did I forget to mention those headers? My bad... )

 

I don't know.

 

Mike, the current standard Jet Hot is actually a shiny nearly chrome look finish... VERY nice.

For ANYONE not convinced that they should get the JET HOT coated option please read the following link: http://www.jet-hot.com/pages/techinfo.html

The picture BELOW is NOT the project headers. They are for Corvette C5 and show the JET HOT sterling finish.

 

Wow! Looks great John! I need no convincing personally on the coating at all.

 

So with the Jet Hot coating there is no need for thermal wrap either is there?
Will

 

Thermal wrap would keep underhood temps lower and effectively replace the heat shields. That said thermal wrapping the pipes concentrates a tremendous amount of heat on the metal. It can also hold moisture when the vehicle is not running. Personally I will not be wrapping my exhaust.

REGARDING the heat shields. Yes, the passenger side shield fits BUT at this point no provision has been made for mounting brackets. The shields are attached to the stock manifolds by metal bracket welded to the stock headers. If you look at the stock manifold you can see 3 brackets, one on the 2nd pipe, one near the o2 sensor and one on the back pipe. In order to affix the heat shield we would need to design and locate and build these brackets. This is not an easy task and would increase the cost of the manifolds.

At this point I haven't even discussed this option with the fabricator. Honestly, I am more interested in getting manifolds built than any heat shield issues. The reason he made the header to fit inside the shield was to assure fitment in the vehicle. So, at this point do not expect to be able to use the heat shields. This may become an additional cost option but do not plan on it.

 

if anything just weld the suckers on, would that work? (for the heat shields i mean)

i cant honestly show full interest until i see some real life dyno results.

 

Heat wrap is a total pain in the *** too. Not to mention having to deal with fiberglass ich after, and gloves seem to break too when doing it. Another negative to point out is it's harder to tighten the manifold bolts in tight places with bunched up fabric in the way. Did it on my turbo manifold, and I'll never do it again.


Probly not. I can guess the heat shield are aluminum and the headers are mild steel. Even if they could be welded they might get noisy since they are touching the manifold directly.

There is an easy way to make the heat shields work. You could weld on 2 nuts on the manifold at the high points, drill 2 new holes in the heatshield and screw in 2 new bolts, that way the bolt holes cater to the manifold instead of the original holes on the stock heat shield.