Anybody identify this header? no obvious markings. flange to cylinder head appears to be half inch. welds look very clean.

 

close up of welds wouldnt load, il try to get it up later

 

looks like my gmg headers

 

looks like my old headers .....the welds doesnt withstand heat

 

Not sure who's they are. I'm sure if they were good, someone would be proud to put their name on them. If they're heavy wall tubing, they're probably OK...if they are fairly thin skinned...they are junk and will crack. The heavy walled ones may crack eventually too, but long after the thin ones...

 

Evoms GT headers. i have 2 sets of them

 

these headers was around $2700 when new

 

Yeah, look like Evo Gen 1

 

any particular markings they put on them? it looks pretty well made. probably be in for sale section soon unless i slip and it lands attached to my engine.

 

no, i think the tubings are 1 3/4 size. they make good power.

 

Yep...these measure 1.75".

 

I don't believe there was any good data on increased performance from header change only. I had a beautiful pair of Switzer headers on my old 996TT and 6 different exhaust systems that I tried.

 

yeh, think headers are likely over rated in this case.

 

there are alot of talks with headers making power. maybe not for stock k16 turbos but if they dont make power why are guys using tial turbos change their headers. im sure not for looks cause you cant see anything down there. headers alone doesnt give u power. better design headers will help the turbos