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Re: Audi on the way up 87 4KS
On Wed, 5 Jul 1995, Steven Buchholz wrote:
> Bentley. It sure looked like there were two pipes on the downpipe side of the
> connection to the exh man in that book. It looked like the mounting flange is
> different than that for the Fox ... mine has a rectangular mounting surface
> with six bolts (one on each corner and two in the middle of the long direction.
> >From this tiny bit of information I would imagine that you are going to need
Mine has only the meager single outlet, which is known in VW circles to
be not-so-good in performance, but also prone to crack. The '87 VW Fox
that provided some parts for the 4KS also had the single outlet manifold.
related Fox stuff,
The factory Fox exhaust system is terrible! It uses the same cat as a
4KS, but actually has a restrictor plate to lessen exhaust flow. That's
right folks, VW used a "donut" gasket that is the same diameter as mine
on the outside, yet the hole in the center is about 1.25". Coupled to
the puny (1.5"?) pipes from the cat back, and the torturous exhaust path,
the Fox exhaust is killing those poor little horsespowers. A good
exhaust system is said to be worth upward of 15hp, and looking at the
stock setup, it's not hard to believe.
The University of Akron Sociology Department-------Akron, Ohio
1987 Audi 4000S, 1.8L 4-cyl, FWD----------SOLO II H-Stock