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Hmmmm. This talk about a cheap header for the 10v turbo sounds
interesting. Now I'm not saying this guy can't do what he says he can
[in fact I hope he CAN & DOES] however, when talking about "cheap
headers" I think caution is advised. Now, I'll admit to knowing
absolutely zero about construction of a header for an Audi, BUT, having
raced some killer Mopars years ago I can tell you that I paid something
like $1k for a stainless header to put on a way built 340-6 some 15 years
ago. Granted, technology has probably changed, but there is A LOT repeat
A F'in BUNCH more to designing the "right" header than merely knowing how
to weld, bend, shape, etc. Frankly, while I don't see the street
application [for me at least], read here "need" for the $2,200 German
product referenced in the earlier posts, I was not surprised at all by
the cost---if it does everything that a stainless 5 to 1 header should do.
Turbulence, or the lack thereof, is the key. Can be called many
things, but turbulence is one of the important things to eliminate in
designing a high performance header system. IT AIN'T easy to do, right.
No engineer talking here, but I travelled down many a dirt road
looking for REAL exhaust gains. I was [and am] convinced that the money
it takes to design and manufacture [and, that is what you are buying with
any performance upgrade] really potent exhausts does not translate into
cheap cost to the end user. Also, it was never the "first" money we
spent when we went looking for significant hp gains. That said, IF this
guy can create a manifold to cat system that has a real life and shows
significant gains over that life, I'll buy 2.
Just my opinion--probably 50 guys on this list that know more
than I do about this subject.