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Cheap exhaust options

MikeCrum1996 Mar 6, 2018

  1. MikeCrum1996

    MikeCrum1996 Member

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    so I’m going stage 2 finally in the next week or so.. my only problem is my exhaust is so quiet and I don’t know if it will limit my potential for stage 2..
    I have a 3Inch decat downpipe.. on the standard mid section and back box.. I think the standard exhaust diameter is 2.25.. would It limit me? Or is it okay for stage 2 ? I was thinking of just getting a aftermarket back box to give it more tone.

    Any suggestions?

    1.8t Aum
     
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  3. desertstorm

    desertstorm Moderator Staff Member Moderator VCDS Map User Audi A4 Audi Avant Owner Group quattro TDi

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    My TT still runs the standard rear box and resonator. Made 275bhp and 300Lb/ft with a welly cooler , decat, 3 inch DP, Badger V2.2 TIP,
    4 bar FPR and Ramair filter. The standard engine is out of fuel around 280bhp and the standard exhaust system isn't that much of a restriction at that power level, I think it's a 2.5 inch system on the TT.
     
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  4. Tj 0785

    Tj 0785 Well-Known Member VCDS Map User Bronze Supporter Audi S3

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    You think it’s restrictive because it’s quiet?
    Stage 2 only requires a 3” downpipe not a full exhaust plenty of people see good numbers with a standard exhaust and 3” dp on a stage 2 map
     
  5. hendo#1

    hendo#1 Active Member

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    Saw 282BHP with my BAM with 3" DP & de-cat mated to a standard catback system.
     
  6. Stuart B

    Stuart B Well-Known Member

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    An AUM is K03s so the exhaust is the least of your worries for "power"
     
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  7. MikeCrum1996

    MikeCrum1996 Member

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    You’re right but I’m not after huge power just the most out of what I got lol.. my main goal is torque not bhp id hope for 270-280 ft lbs of torque is this realistic?
    Would I see any gains from swapping inlet manifold with something like a bam inlet?
     
  8. Tj 0785

    Tj 0785 Well-Known Member VCDS Map User Bronze Supporter Audi S3

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    Bam inlet is on the opposite side so would have to change intercooler pipework and throttle body don’t think you will gain anything by doing this
     
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  9. Stuart B

    Stuart B Well-Known Member

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  10. MikeCrum1996

    MikeCrum1996 Member

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    Yeah I see your point but that’s also a lot more money.. but surely stage 2 is worth it with like 70 ft lbs increase with bolt on mods,, also id need to change my rods for a ko4 update?
     
  11. Stuart B

    Stuart B Well-Known Member

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    dont know about the rods (AUM versus BAM), I believe the AMK BAM APX engines have something slightly different "wrist pins" but not an expert sorry. Prawn's thread might help, although I am not sure he ever went for minor mods.
     
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  13. Rainbird

    Rainbird Active Member

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    Typically a standard k04 at st2 levels isn't going to be announce the 300lbft ballpark for rods. Can't guarantee they'd be fine of course, but the same can be said for any standard 1.8t engine at this point.

    Have a read of the RTech running pages and Jardo's "must do mods" thread on here. Once you know what it is you are aiming for, it'll be fairly simple to figure out what drops suits
     
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