Landseer

32V Porsche pipes on 16V engines is what makes sense to me.

32V? Greg's are a work of art.

j.kenzie@sbcglobal.net

I agree, Chris, but 85-86 manifolds cost slightly more and require adapter to mate with exhaust. Are these mods worth the effort and cost?
Thanks,
Dave

Landseer

I thought it was less?

Those SS 85/6 pipes cost me $185 and I thought I overpaid.

Exhaust shop adapted the cats by lopping off the flange on the short side, then inserting a piece of tube and stitching it all back together. Total cost was $315 including pipes.

Threw the MSDS in the trash.

Ad0911

What kind of adapter is needed? Just an extension tube that can be mated to the original exhaust or is there any tube bending needed?

85euro928

Don't buy the prefab'ed adapter, it doesn't work (at least it didn't on my car). I adapted mine by cutting the flange off the one side, installing both the flange and the Y pipe, and then fitting in a piece between the two. Pretty easy.

Landseer

Same here, no way adapter was going to work.

You want the downpipes to align with the ends of the 85/6 manifold pipes without having to put them in a stress mode due to construction of the manifold pipes (dual wall, metal bellows for expansion)

Maybe earliest cars are different, I don't know.

Ad0911

The asking price here is EUR 360 for the pair. That is approx US$ 450

Landseer

How much shipping / customs fees / tax to import a set if $185?

Carl Fausett

The new design from MSDS with merged collectors has arrived here for our testing.

We will be installing them on an engine soon, and testing fitment and compatibility with our Header-X pipe. Then dyno.

It's hard to get a picture of the inside of the collector, but there is a proper 4-sided cone in the center.

Note the tack-welds. This is a prototype set, here for fitment tests. The tack welds allow us to cut the weld and reposition the pipe before we send them back.

Think before you order up the OBX headers with straight collectors. These headers with merged collectors will out-perform them!

SeanR

Will your Header X bolt right up to these?

Lizard928

You should convince then to make these with a V-band flange instead.

Carl Fausett

That is the plan. That is one of the things they are here to confirm. I have to mount them to an engine of course, then we will know.

U-928

Better. Are they doing the same to the 16V versions too?

1989porsche928

I skimmed through all the post, did anyone actually install these headers on their vehicle? Also did someone mention they where made in China? I am kind of curious on how these headers would perform in the long run / high use. Due to the lack of knowledge on metallurgy, under trained / under paid employees, and low resources in China I believe this product contains contaminants in the metal that can cause it to rust or crack. I could also be completely wrong.

SMTCapeCod

Wow, that is one short/shallow 'collector'!

Is the collector 3"? And then is the x-pipe 2.5"?