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A4 1.8T
Good evening,
I want to do some upgrades to a A4 1.8T from TAP. They have a tubular header
and a down pipe with a hi-flow cat. This will be added to an ABT exhaust
back. We will also be doing the K04 turbo with ECU upgrade from Neuspeed. My
question is the Neuspeed can come with an exhaust manifold that has been
Extrude honed as an extra. Which one of these manifolds will work best? The
Extrude honed one or the tubular header one and why?
Thanks for your response.
Al Swackhammer