[TimeWarp]

Its time to move some of the parts that have accumulated. Listing 2 brand new sets of Tri-Y headers, one is O port, the other D port. They fit 2nd generation firebird and gto. Send me a message. I know it seems like the messages don't go through, but they apparently do. Its a glitch. The picture is of the D ports. I didn't take the other set out of the box. $550 plus ship

[Bnick166]

The round ports are for 68-72 GTO?

[mklinger]

Pm sent

[TimeWarp]

bnick, correct. mklinger I am going to check the box size when I get home and pm you back.

[dirtbkr89]

Pm sent

[machota154]

Hello,

Any pics of the round ports ??

[TimeWarp]

picture of the o-ports

[S/st 54]

Will the round port headers fit a 68-72 GTO?
What size primary tube? What size tube does the Y go into and what size collector?

[TimeWarp]

Yes, they fit 68-73 A body. They have 1 3/4" primaries, 2" secondaries and 3" collectors. My son told me to mention that they are not restrictive up to about 600-650 hp. They were dyno tested on several combos a while back side by side with 4 tube headers on mid to high 500 hp combos.

[TimeWarp]

available

[machota154]

I so want these !!!!!!

[Half-Inch Stud]

Originally Posted by machota154

I so want these !!!!!!

yea me too. to replace my O-port 4-tube headers.

[TimeWarp]

step right up gentlemen. They are in the box ready to go. I'll go so far as to take deposits and hold up to 2 weeks for final payment.

Something I forgot to mention. I have either 2.5 inch or 3 inch reducers, your choice with each set depending on what size exhaust you have.

[76 poncho]

Tw. Are these tribal tubes

[TimeWarp]

yes, they were made by tribal tubes. My son bought quite a few sets, but now its time to move some.

[1967SC]

D ports fit 68-72 ?

Thanks

[Ben]

PM sent

[TimeWarp]

Originally Posted by 1967SC

D ports fit 68-72 ?

Thanks

That's correct

Ben, will check on shipping

[ed boersma]

Also interested. Are dyno sheets available showing their performance vs 4 tube? Thanks!

[TimeWarp]

My son will look tomorrow for the info. I'm copying here what he wrote me. There was one test from KRE back in 05' that showed matching Hooker Super Comps on I think a 590ish hp motor & there is one from SD that the motor was tuned to the 4-tubes over 3-4 pulls then only one pull on the tri-y's. In that one the Tri-y's showed just a few hp under but the motor was never retuned for the Tri-y's because they werent the owner of that engine and couldnt make as many pulls as he wanted.

He also mentioned that a standard set of Tri-y's were on Roger Bolliger's 700 hp road racing trans am in Europe for years until he had him build a custom set of Tri-y's with bigger tubes a couple of years ago.

That was before all the stuff blew up with the owner of tribal tubes.