Downpipe choices AAZ in MK1

[Vincent Waldon]

The exhaust outlet side of the K03 turbo is a different shape (rectangular) than the other turbos VW used.. K14, T2, T3, which have a square outlet.

Based on the pictures that I saw the AAZ TT downpipe is expecting the K14 turbo with its square outlet.  Certainly worth confirming before you order.

This thread starts with a picture of the K03 rectangular outlet:

http://www.vwdiesel.net/forum/index.php?topic=25854.0

Whereas about 2/3 of the way down this thread you'll see a side view of the K14 square outlet:

http://forums.vwvortex.com/showthread.php?4726902

[erice1984]

ah, okay.  Damn.

That flange reminds me of the ones on Subaru turbos.

Is it as simple as grabbing up a different turbo?  or are the intake manifold and exhaust manifold diff as well?

[Vincent Waldon]

Intake's the same, but the K14 uses a different exhaust manifold (same one as the T2/T3/K24) and probably different oil lines as well...perhaps someone else will chime in. 

Unfortunately you really did get the odd ball turbo.

[erice1984]

Maybe I will work with it until it craps out on me or something.  It does have the down pipe with it.

[Vincent Waldon]

It does have the down pipe with it.

Sounds like a plan... lotta work to shift to a different turbo, and you should be able to find a muffler shop that can work with your existing downpipe?

[erice1984]

If the stock down pipe will fit in the rabbit (mk1) then the rest of the exhaust could be attached to it no problem.

[GEE-BEE]

Correct, just a rear muffler is needed

To change to a different turbo:

intake manifold will change
intake snorkel is different 1.85 KO3 , K14 is 2.33 I.d.
( I make both snorkel's and Turbo Duct's )
turbo to intake manifold  duct  is different
Downpipe is different

Good Luck