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  1. #1

    Hoppen Stage 3, 1998 Audi A4

    There is a 1998 Audi A4 for sale locally and the owner tells me it has a Hoppen stage 3 chip and a S4 turbo and an aftermarket exhaust. It has 50,000 miles on it and the owner tells me he was told it has 225 hp. He has owned it for 2 years. The work was done by a dealer when new and was used as a show car. Any advice or thoughts would be appreciated.


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  3. #2
    dummi's Avatar
    smoking a6

    Join Date
    Mar 2004

    Re: Hoppen Stage 3, 1998 Audi A4

    i don't know much about this topic, or hoppen,

    but an s4 turbo is just a k03s i think which is possibly the stock turbo if the a4 is a 1.8 turbo engined, and the s4 has two of them bolted to a 30valve v6 2.7liter

    if he meant rs4 turbo then thats a k04 (though manifolds are completely different that is probably irrelevant if he is just describing the car)

    the k04 would be reasonable for a 225hp i think

    stage 3, i'm not sure about.

    if i were you i would have an independent tech have a look at it if you are seriously going to go for it, not just because the description is a bit unclear, but because it is a modified motor period.

  4. #3

    Re: Hoppen Stage 3, 1998 Audi A4

    This is from the Hoppen motorsports site. I am assuming all this has been done to the car.

    "Stage 3 consists of MTM software with a KKK K04 turbo, Bosch 5 bar fuel pressure regulator, Bosch performance spark plugs, MTM 70mm stainless steel exhaust, MTM stainless high flow downpipe with flex coupling, modified catalytic converter (exchange) and ported exhaust manifold (exchange)."



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