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  1. #1
    Veteran Member Three Rings RS.Fez's Avatar
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    Oct 24 2006
    AZ Member #
    12826
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    2007 A4 Quattro Sline
    Location
    Toronto

    APR HFC = TestPipe?

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    is APR's highflow cat basically the same thing than a Testpipe? or am i still getting restriction from the HFC?

    I just had my full APR system put on, so was wondering if i should look into getting a testpipe or stick to the HFC.

    I know i've heard a lot of ppl complain about the sound level in the cabin - which doenst bug me too much, more interested in the performance.
    Mod List: APR Oct 91, Oct 93, Oct 100. // CF Interior Trim by Carbon Copy Designs // STaSiS Street-Sport// APR Full Exhaust // RS4 Sway bar // 19' BBS CH

  2. #2
    Active Member Four Rings marty was here's Avatar
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    Nov 10 2006
    AZ Member #
    13270
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    992TTS 992GT3 RS7
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    nnj

    Re: APR HFC = TestPipe?

    APR makes a high flow cat?

    THEY ARE NOT THE SAME

    ones a cat, the other is a straight pipe

    PS USE THE MOTHERF***ING SEARCH BUTTON NEXT TIME
    We have a black president... Racism is dead.
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    I have a real sore throat...feels like I've been deepthroating gorillas.
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    Hey, I just read this (and this is crazy), but take your two cents, and fuck off maybe?.
    audia

  3. #3
    Veteran Member Three Rings RS.Fez's Avatar
    Join Date
    Oct 24 2006
    AZ Member #
    12826
    My Garage
    2007 A4 Quattro Sline
    Location
    Toronto

    Re: APR HFC = TestPipe?

    Quote Originally Posted by marty From Dvag View Post
    APR makes a high flow cat?

    THEY ARE NOT THE SAME

    ones a cat, the other is a straight pipe

    PS USE THE MOTHERF***ING SEARCH BUTTON NEXT TIME
    Another sandy vagina on Audizine......


    ...wow, its like this board is PMSing.
    Mod List: APR Oct 91, Oct 93, Oct 100. // CF Interior Trim by Carbon Copy Designs // STaSiS Street-Sport// APR Full Exhaust // RS4 Sway bar // 19' BBS CH

  4. #4
    Veteran Member Four Rings AudiWxGuy's Avatar
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    Nov 12 2007
    AZ Member #
    22523
    Location
    Grand Junction, CO

    Re: APR HFC = TestPipe?

    How do you like your APR exhaust? Did you notice and differences between chipped w/ exhaust and chipped w/out exhaust?
    2013 A4 2.0T Quattro -- Phantom Black Pearl -- Tiptronic
    Premium Plus -- Walnut Trim -- Nav -- B&O -- Keyless Entry -- Sport Package -- Chrome Tips

  5. #5
    Veteran Member Three Rings RS.Fez's Avatar
    Join Date
    Oct 24 2006
    AZ Member #
    12826
    My Garage
    2007 A4 Quattro Sline
    Location
    Toronto

    Re: APR HFC = TestPipe?

    Quote Originally Posted by AudiWxGuy View Post
    How do you like your APR exhaust? Did you notice and differences between chipped w/ exhaust and chipped w/out exhaust?
    i've only been driving for 24hrs, and so far i must say i am pretty happy.

    I had to deal with a 2month back order from APR, but now that i actually got it i must say its an awesome product. In terms of noticing the difference between chipped power and exhaust + chip; you can tell. The speed limit comes at you a bit faster, but you dont really notice too much of a noise. Its got a subtle grunt down low, and a nice understated scream at top.

    There is a bit of drone around 2k or under RPM's when cruising in 2nd gear.....but this is only for a bit, and then it settles down. I havent really been able to hammer it down since it started snowing around here lately, and ppl drive like they are blind.

    Im sure the ECU needs a settle period before it learns the right mixtures and exhaust pressures, so hopefully it gets better from here.

    I will post some pics this weekend......now that i finally got rid of the SUV look.
    Mod List: APR Oct 91, Oct 93, Oct 100. // CF Interior Trim by Carbon Copy Designs // STaSiS Street-Sport// APR Full Exhaust // RS4 Sway bar // 19' BBS CH

  6. #6
    Veteran Member Four Rings AudiWxGuy's Avatar
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    Nov 12 2007
    AZ Member #
    22523
    Location
    Grand Junction, CO

    Re: APR HFC = TestPipe?

    Sounds great. Thanks!
    2013 A4 2.0T Quattro -- Phantom Black Pearl -- Tiptronic
    Premium Plus -- Walnut Trim -- Nav -- B&O -- Keyless Entry -- Sport Package -- Chrome Tips

  7. #7
    Veteran Member Four Rings viperdsa's Avatar
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    Aug 28 2007
    AZ Member #
    20633
    My Garage
    Angry Gerbils
    Location
    west of the equator

    Re: APR HFC = TestPipe?

    Wait APR makes a HFC??
    '06 Dolphin Gray A4 2.0T
    Motoza Tuned EFR

  8. #8
    Registered User Four Rings Mike@PureMS's Avatar
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    Jul 19 2007
    AZ Member #
    19663
    Location
    San Diego, CA

    Re: APR HFC = TestPipe?

    APR doesn't make a HFC for the B7, they only make a testpipe.
    Their exhausts are cat-back systems.

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