Any off the shelf, recommended exhaust headers for the 308 available?

I didn't know there were any

tubi probably makes something. The stock headers are 400 series SS and I've never heard of them failing, but I guess they could.

New car?

 

Failures were very rare and were always caused by a severe running problem that went unaddressed. Have never seen aftermarket headers.

 

Ebay is your friend, I believe Stebro & someone else makes em $$$$$

 

Tubi makes them, but are special order.

 

You might try this company:
http://www.pdgough.com/default.asp?d=1
They are in the U.K., but they might be able to supply really quality stuff.

Of course being in Tempe/Phoenix, you can try G.T. parts. If you go in, they may have a supplier for you.

 

That's what happened with mine as well (Euro GTSi) when still with the PO. New headers fabbed locally, in Africa we have exhaust places that will make anything, in stainless. Very talented guys.

 

http://www.superformance.co.uk/a-308/exhausts.htm

 

I had the same problem with my sample ports removed them and pluged them.

 

I bought a front header from Superformance UK years ago. It was an exact fit, even the heat shield bosses lined up. Just be sure that the header will fit your car. Mak some measurements and have those cmpared before committing to purchase. There are not so obvious differences in lengths of the pipes where they join to the muffler. I think there is also a difference between GT4 and GTB/GTS exhausts.

Gerrit
http://dino308gt4.com

 

I didnt know that the stock headers were stainless.The headers on the GT4 were mild steel.Important also if ordering from superformance id to make sure you let them know if there headers suit a cat car as euro exhaust and us exhaust may be different
Question though,,,are the headers in the 328 stainless?The headers on my car are stainless but dont know if they are original even though the car only has 17000miles on it

 

How different is this exhaust manifold for the 308QV from the stock one?

 

Stebro Headers.
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That price on the UK ones is actually not too bad....

I had a lot of ignition problems on #22127 (MSDs by previous owner) and before I got it all sorted blew up BOTH units front and rear.

The cracks at the collector went un-noticed beneath the aluminum cladding then a backfire blew it all to bits!
But as Brian said under nomal operation they should last a lifetime.

A common fix to the sample ports leaking is to remove the plugs and weld them closed, maybe that would reapir your set with the broken bung?

 

I got a quote from PD Gough on stainless muffler & headers for my Euro QV. It's in this thread:

http://ferrarichat.com/forum/showthread.php?t=244914

However, I concurr, a good TIG welding shop (think aircraft shop) should be able to restore your OEM SS headers.

BTW, My '82 QV's Euro headers were not SS, altho the intermediate pipes appear to be SS!

 

Tubi headers, available from Carobu
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stock (euro)328 headers are stainless

 

A very easy way to test for stainless steel is a simple magnet, stainless steel due to it's nickel and chromium content is non-magnetic.....Mark.

 

What about Fabspeed?

 

The 300 series is better and that is what most of the aftermarket stuff is made from if it says SS The 400 is cheaper and still lasts a long time so a lot of OEM stuff is 400.

 

On a Lamborghini forum a shop named exoticparts offers to build headers and complete exhaust systems made of Ti. I never heard of them before.


You can email them at: [email protected]



About the Stebro and Tubi headers we can see differences in design: on is a 4 into 1 and the other is a 4 into 2 into 1 ( triple y configuration ). Snj5 wrote the latter design offers more driveability in normal road applications ...

Could anybody tells us more about differences between these two designs?


Technical question: How important is to predetermine the primary length? To be more precise, is there an unavoidable way to set ( calculate ) this length and varying even slightly from it will it cause the entire headers system to be a failure ? So this is far from being only a matter building equal length pipes? I know that final design will also be determined by what kind of performance the owner is looking for ... ( immediate torque, lots of power in the high revs ... )


I ask because I want to know if it is possible to build headers simply by extrapolating design specifications numbers with say pictures of real engines and headerrs systems?


I apologize for my ignorance!

 

Not only primary length but also pipe diameter. In the past, collector design was given short shrift. Take a look at http://www.burnsstainless.com/ They manufacture very up to date collectors and offer a design service. There is on f-chat a Daytona that had a Burns system put on it. Also Larry Meaux offers http://www.maxracesoftware.com/pipemax36xp2.htm for header design measurements.

The 4-2-1 is the superior design in a road car. But you do not want a 1960s style Tri-Y like this. Primaries that merge too soon and crappy collectors. You'll notice the Tubi shown earlier didn't do this.
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