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Thread: Giac ecu/tcu

  1. #1
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    Giac ecu/tcu

    Hi folks,
    My first post. I have a new to me 2004 RS6. In order not to void warranty, my dealer offers the GIAC ECU/TCU chips. Does anyone have any negative comments about this product? All responses welcome.
    Thank you in advance.

  2. #2
    Registered User V8weight's Avatar
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    This is a loaded question. The best way I can say this without opening a can of worms is to recommend steering clear of GIAC, and leave it at that. If you're worried about warranty issues, find a tune that offers a flash loader to allow you to flash back to the stock map when you go in for warranty service. Search Viper and Eurocharged, there's plenty of info here. Welcome aboard by the way.
    Pat - Eisenmann race exhaust, Catless downpipes, KW V3's, H-Sport sways, 034 Control arms, Apikol diff mount, Sterns motor mounts, Forge dv's, Stainless brake lines, Venair hoses, Sportec vent mod, Euro tails, Viper Tuned ecu/tcu, DPE S20's 19x9.5, 275/30/19's

  3. #3
    Registered User 4everRS's Avatar
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    2004? outisde the US? or imported from Canada
    Avus Silver RS6 - Viper Stage 2 ECU/TCU - Water/Meth Injection - Frozen Rotors - Hbars - clear corners - Hella smoked tails - gutted precats

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    Uhhhh,

    Welcome aboard and search is your friend.

    The better tunes

    Eurocharge
    Viper
    APR
    OCT
    MTM

    Eurocharge, Viper, APR offer the option of flashing back to stock.

    I will leave it at that.

    Quote Originally Posted by drabe View Post
    Hi folks,
    My first post. I have a new to me 2004 RS6. In order not to void warranty, my dealer offers the GIAC ECU/TCU chips. Does anyone have any negative comments about this product? All responses welcome.
    Thank you in advance.

  5. #5
    Registered User PALETTE's Avatar
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    EPL tune, I wont say more then that because i have no experience with the others but can vouch for the EPL one and the services that goes with it. You will find that everyone has there own opinions so be prepared for everyone to respond in different ways.

    Now you say 2004??? where are you from?

    Oh and the Giac tune is being done by the dealer for you?? Oh you must be from Toronto and have gone to Pfaff tuning LOL you may want to PM me so we can talk and FAST!
    2004 Black/Black,EPL Tune *** 0-60 in 3.5 seconds SOLD :( - - 2002 TT Porsche 724WHP 10.43@139mph/ Motor build in progress. looking for 9's

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    Sorry, my response has much more than opinion to back it up. I can drag out the data logs all over again if needed. In addition, I dont really wish to drag out the GIAC data logs and play the dead horse beating again. The guys have all seen the footage.

    Please post up your EPL tune data logs for others to inspect. Should be fun to see some concrete data.

    Quote Originally Posted by DHall1 View Post
    Uhhhh,

    Welcome aboard and search is your friend.

    The better tunes

    Eurocharge-Data log proven
    Viper-Data log proven
    APR-Data log proven
    OCT-Data log proven
    MTM-Data log proven

    Eurocharge, Viper, APR offer the option of flashing back to stock.

    I will leave it at that.

  7. #7
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    still have warranty??!??! extended or something? btw/... for North America! 04 = Canada! haha

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    or we can group buy from Canada! LOL

    wait a minute.... GIAC is also datalog proven... isn't it?


    but..... it was proven..*blank*..........

  9. #9
    Registered User marklar182's Avatar
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    As for the TCU, it is a no brainer. Go with MTM from Hoppen. Price is reason enough, but the Giac TCU chip is barely better than stock.
    2008 A4 2.0TQ Quartz Grey Metallic S-Line/Titanium Package
    2017 A4 2.0TQ Glacier White Metallic Prestige Sport
    2003 RS6 TOTALED.-----Searching for a replacement

  10. #10
    Registered User PALETTE's Avatar
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    Here you go, but i am sure most have seen this already,

    Blue is Stock, Green is with the tune, Red is with Custom Turbos.

    Click image for larger version. 

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    Last edited by PALETTE; December 13th, 2010 at 16:44.
    2004 Black/Black,EPL Tune *** 0-60 in 3.5 seconds SOLD :( - - 2002 TT Porsche 724WHP 10.43@139mph/ Motor build in progress. looking for 9's

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    Quote Originally Posted by DHall1 View Post
    In addition, I dont really wish to drag out the GIAC data logs and play the dead horse beating again.
    DHall: The GIAC logs aren't only from my car only, correct?

    If so: A = Bad Torque converter, B = Tune was probably the first revision that GIAC ever sold.

    Next logs will probably be done in the spring with new/latest GIAC revision as well as a 6 speed, so no longer an apples to apples comparison.
    2012 Q7 TDI S-Line - 2010 GTI - 2007 A3 3.2 S-Line - 2003 RS6
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  12. #12
    Registered User ttboost's Avatar
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    Quote Originally Posted by palette View Post
    here you go, but i am sure most have seen this already,

    blue is stock, green is with the tune, red is with turbos.

    Click image for larger version. 

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    corrected...
    2013 Audi S8

  13. #13
    Registered User PALETTE's Avatar
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    Quote Originally Posted by ttboost View Post
    corrected...

    Sorry got excited again! LOL, Mike how is the beast?
    2004 Black/Black,EPL Tune *** 0-60 in 3.5 seconds SOLD :( - - 2002 TT Porsche 724WHP 10.43@139mph/ Motor build in progress. looking for 9's

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    Correct. Your logs were not complete nor had enough data.

    Latest GIAC revisions are nothing to write home about. imho

    Crayon drawings from retailers mean very little. We need to see the car and verify data logs. 30-60 and 30-90 would be nice too.

    Quote Originally Posted by SteveKen View Post
    DHall: The GIAC logs aren't only from my car only, correct?

    If so: A = Bad Torque converter, B = Tune was probably the first revision that GIAC ever sold.

    Next logs will probably be done in the spring with new/latest GIAC revision as well as a 6 speed, so no longer an apples to apples comparison.

  15. #15
    Registered User PALETTE's Avatar
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    Quote Originally Posted by DHall1 View Post
    Crayon drawings from retailers mean very little. We need to see the car and verify data logs. 30-60 and 30-90 would be nice too.
    So dyno sheets mean nothing... and my Vbox is "not the approved RS6 tool to measure" looks like your S.O.L but if for some reason someone has a "better idea" i'm all ears, Unfortunetly its snowing here today so i'm not going to go out and try to run any numbers and with the salt all over the place it looks like its going to be aWhile till you see numbers from my car.
    2004 Black/Black,EPL Tune *** 0-60 in 3.5 seconds SOLD :( - - 2002 TT Porsche 724WHP 10.43@139mph/ Motor build in progress. looking for 9's

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    I have no idea where you pulled that dyno sheet from.

    Dyno sheets from retailers dont hold much water for me.

    I dont think anyone here is challenging your pbox. But, if you have some data to add via Vagcom, what tune you have and the gains....that would be helpful. The last time I checked your car was stock.

    I'm done with this thread. You all can have the epenis sandbox.

  17. #17
    Registered User ttboost's Avatar
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    Quote Originally Posted by DHall1 View Post
    I have no idea where you pulled that dyno sheet from.

    Dyno sheets from retailers dont hold much water for me.

    I dont think anyone here is challenging your pbox. But, if you have some data to add via Vagcom, what tune you have and the gains....that would be helpful. The last time I checked your car was stock.

    I'm done with this thread. You all can have the epenis sandbox.
    Hmm testy...(no pun intended)...

    While I agree that dyno sheets are not a reason to buy something, I think the graphs show the potential and the delta between the before and after, forgetting about the hp/tq numbers. Coincidently, my stock curve looks very much like the stock one in the post above.
    Last edited by ttboost; December 13th, 2010 at 20:30.
    2013 Audi S8

  18. #18
    Registered User DonS's Avatar
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    DHall1 needs all the data in one format to effectively compare tunes. If one of use uses Dynolicious, another Mustang another... we cannot compare HP and torque without knowing the differences between the measuring devices. The same with VAGCOM, VBox verus other data loggers. Let's all get on the same tuning, dyno, datalogging page!

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