Thanks for the update John, I'm dying ot see the pic of the drivers side proto-type!!!!

 

Just send me the prototype and I will tell you how it fits .
Thanks for the update and for all the efforts.
HI98GS

 

jbrady,

If the demand is high, do you have have any plans to get subsequent headers fabricated in a timely fashion?

 

Here is the stock drivers side manifold. No pictures of the prototype but this is a reminder. Ports 1 and 2 are ok but ports 3 and 4 are terrible. All in all the stock manifolds make for 3 decent ports/runners and 5 bad pipes. The shorty upgrades will give all 8 cylinders breathing room!

At this point I can't comment on subsequent production but I am sure if the demand is good enough (20 or more for second run) he will make them.

 

angle two ....

 

Here is a close up of ports 3 and 4. Notice that 3 is 90 degrees and virtually no length. 4 is actually worse as it points in the WRONG direction.

 

Here is a reminder on construction. The short runners, all 5 of them, have this same construction. The primary pipe fits OVER the secondary pipe and there is a sharp lip inside the runner... this is TERRIBLE for flow. Remember, these are the 1998-2000 manifolds which are the BEST of all the years. The 1990-1997 and the 2001+ manifolds are WORSE.

 

I know you are close to the completion of the prototype phase, but people need to realize that once the prototypes are made, it will still take time for subsequent headers to be made.

I am going to assume that each header is going to be hand crafted. I highly doubt you are going to go into mass production with molds etc. Hand building these things takes time. I know it won't take another year for the headers to be made, but the initial demand so far may result in at least a month (possibly 3) wait for some before receiving the final product.

I don't want to rain on your parade, but I wanted to inject some reality into this thread.

jbrady, you have my sympathies for going through with this project. There have been a lot of negative detractors who simply don't understand the design and production process of such a project. Congratulations on a job well done.

 

Well, while there is some truth to your point it is also true that the fabricator is actually a production header facility. They mandrell bend pipe on a production basis. They will make jigs from the prototypes and bend all the pipes necessary. Each part will be finished and then the entire header will be assembled. This is a production process and is not just one individual building headers from scratch one by one. So, yes, they will not be made all in one day but they will not take that long once productiion is ready.

 

jbrady....

PM sent.

 

any ETA on when these will be available. if you think its longer than about 3-4 months, sign me up. i have a major project and this will help.

edit: yes i do mean longer than 3-4 months. the piggy bank is being stocked now to be blown all at once later.

 

my palms are starting to sweat w/ excitement!!!!!!!!!!!!!! so since i live in the middle of nowhere (des moines, ia)... who should i try to have install this? an exhaust shop? a transmission place since the engine has to be moved slightly? anybody have any ideas?

also NoRyceGS4: u have to pm jbrady to get on the wait list. he said it might be as soon as 1 month...but that is NOT guaranteed

 

nice pics John!

 

Exactly what I am now looking for. Could not find headers for the GS 400 (except custom costing a few grand each) Please contact with info:
robansel , bansel124@msn.com, Bob Anselmo, 124 Saddle Lane, Levittown, N.Y 11756
(516)579-4767 2000 GS 400
Thanks
Bob A

 

i am too iching. I was at the drags last night, and I said to myself before I would anly start doing drag runs that I need get a set of headers and full exhaust. But it's tough watching your friends race and not you.