Well i just had to show off my new SDJ Headers ... let me know what you all think!

 

damn

 

ya that was prob one of the first words that came out of my mouth when i saw it

 

What are the specs that they made it to?

 

i looooooove SDJ!!!!!! soooo much better than RB

 

equal lenght primary and secondary ... collector of 2.5" ... O2 sensor spot

 

did i mention is stainless steel ... lol

 

Did I mention $$$$$$$!!!

 

how the hell is that better than RB? the RB header has equal length tubes and looks a whole lot better. let me know if there's any clearance issues with the idler arm.

 

SDJ from what i've read has a better flowing header then RB ... all the guys that are running up front in stock 7 are running SDJ

 

Are you retarded. ever look at a RB header? the collector is garbage it might as well be a pacesetter collector.

 

lol...speaking of pacesetter......i really freakin hate to do it, but im toying with the idea of temporarily using one on my rex if its smog legal here until i can take the car out of CA. stupid smog year freeze......i would be soooo close right now....stupid C.A.R.B.

what kind of problems would i run in to if i did this....besides not being as good as an RB or SDJ?

 

Not saying the RB header is better but this is a very ignorant comment.

 

I was just messing with him, but the collector on the RB header sucks when compaired to the SDJ header!

 

whats the diff between the rb and sdj where is the hp gain

 

congratulations. what do you plan on doing with the rest of your exhaust system?

 

that kinda looks like somthing I could make in my shop...

 

sdj headers are proven to gain much power over RB's. one of the differences is the length of which they extend from the block. the farther out you go the better.

 

Does anyone have any idea about the engineering "rational" for these header designs?

Tuned length at what frequency at what EGT? etc. . Are they working as extractors? or as tuned resonators.

Do the two rotors "Talk to each other". The RB twin pipe would suggest only extractors. That is dump the spent gasses independently with the least amount of resistance.

Wondering

CalG

 

I will be having a 2.5" SS straight pipe to a magnaflow also all SS muffler. The muffler has a 2.5"inlet and dual outlets so will look very similar to stock design but with alot less restriction. I'm hoping to have the exhaust system done by monday as I have an appointment then with my exhaust guy. I'll be taking pictures of the whole thing then.

Just a question to someone that already has an SDJ ... when they shipped it one of the pipes wasn't welded i emailed him about it and he said

Quote:

That joint is left unwelded intentionally. The pipe is
a "swage" fit (ie: Press fit) it is designed like that to
allow for expansion of the header without cracking.


Does that sound right? Or is he telling me this just for his reputation not to go bad. Cause if he did forget to weld it i will get it done on monday with the rest of the system

 

That sounds right, my SDJ header has a small pipe connecting both tubes, looks like your's is a different design.

 

i would leave it as he says.

 

how much?

 

so these headers r for a 12a or 13b

 

They are available for 12A and 13B. I have a special on them for the month of JAN on the Rotary X Auctions

http://www.rotaryx.com/?a=1002&b=245