I've finally nailed down the last few pieces to put the compete 90mm adapter kits together. The pricing breakdown is listed below. I'm going to try to get this info updated on our website pretty quick as well. The pricing on the throttle bodies won't last too long, but I'll sell them for this price as long as I can get ahold of them.
Our flanges are machined from 6061-T6 billet aluminum and can accomodate the addition of spray bars for NOS or Meth systems or both. The finished J-tubes are re powdercoated to match the original color and finish. I'm still trying to nail down the specific year applications as there were several changes made by GM on the early DBW systems.

WCCH J-tube parts and cost:

Converted J-tube__________________________________$345.00
90mm Throttle body (GM #12570790)_________________$200.00
TAC Module (GM #12574221)________________________$152.66
Wiring harness adapter_____________________________$ 57.36
“O” ring seal ______________________________________$ 24.66
Stainless mounting bolts ____________________________$13.34
Anerobic sealer____________________________________$ 6.49

Total____________________________________________$ 799.51

J-tube core charge_________________________________$260.00

Flanges only______________________________________$175.00

I have only a few core J-tubes to use for exchange purposes. We have a growing list of guys wanting to exchange their J-tube so that means it will take some time to meet the demand. Exchanges are done on a first come first serve basis.
For those not wanting to wait for the exchange program, I can modify your supplied J-tube with each batch run we do. There's usually a 3-4 week wait between batch runs. I realize it's short notice, but we'll be starting a run of tubes late this week. Anyone who would like to get their J-tube converted should PM or call us at the shop and we can discuss the details. We'll also have some machined flanges for anyone who would like to do their own work on their J-tubes themselves.

Happy Hot Rodding.

Richard

 

I got a j-tube coming to ya straight from Magnuson I'll take the deluxe package (all parts necessary). It will save me from having to order from each vendor. Richard, thanks for making it so easy...

Let the modding begin
Bill

 

Bill,
I see your coming straight out of the box with the 90mm conversion, Congrats Bro!

Richard,
Outstanding work, another job well done

 

Richard,
Have your recieved my core back yet?
Mark

 

Yes Mark. Thank you. I issued a credit for the core last friday or saturday. Unfortunately I ran out of stamps to mail the reciept to you. My secretary (wife) hasen't been in to the office yet this week. I'll see about getting it mailed in the next day or so.

Richard

 

Very nice package and a good price as well! Nice job.

 

Thanks man... will probably do headers and a catback first. The 90mm setup will go on shortly after. I'll PM ya later on questions regarding feedback on the stock Maggie tune as bolt-on's are added.

Bill

 

standing by

 

Do you have any pictures of the finished j-tube to post? Thanks.

 

On a truck or just the J-tube?