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  1. #1
    VXRacing ahead Giancarl03's Avatar
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    18th February 2014
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    Default Power gained from full decat

    Hi All,

    What would be the typical power gains resulting from removing the both cats?

    Being a turbo aspirated engine one would expect a quicker turbo spool but would there be a power gain? Any comments?
    -=2014 Astra OPC=-
    Summit White|Aero Pack|206kW|400Nm|1530kg

  2. #2
    VXRed blooded Klystron's Avatar
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    2nd June 2015
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    From the WG website, removing the first cat 8 - 10BHP improvement removing the second cat another 5BHP. This does not include the remap gains.
    Having a sports cat fitted and no first cat, mine is limited on power output due to the amount of gas that can flow through the sports cat.

  3. #3
    VXR enough
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    Default

    I had both cats replaced with decats, added an RSS intake and after map made 336bhp 402lbft (251kW 545nm)
    Last edited by StuW; 21st February 2017 at 12:46 PM.
    Summit White GTC - GONE
    Replaced by Mk7 5dr Golf R
    My Progress Thread

  4. #4
    VXRed blooded
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    10th January 2015
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    445

    Default decat

    both cats removed 325bhp after map could have gone more on bhp but wanted a safe mapp rather than chasing bhp

  5. #5
    VXRed
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    25th November 2015
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    Default

    Quote Originally Posted by StuW View Post
    I had both cats replaced with decats, added an RSS intake and after map made 336bhp 402lbft (251kW 545nm)
    Can you add a video of this, as i want to see if mine sounds the same ... im running the exact same specs except im not sure if mines double decat as cobra doesnt state this on there systems.

    i have a turbo back non res system and had the cat replaced with a decat. so not sure if its double or not :') not too technical with all this stuff

  6. #6
    VXR enough
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    https://www.instagram.com/p/7lgmQaucWR/ thats with a Remus non res cat back aswell.
    Summit White GTC - GONE
    Replaced by Mk7 5dr Golf R
    My Progress Thread

  7. #7
    VXR enough Cal93's Avatar
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    14th August 2011
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    Default

    Good gains there Stu!

  8. #8
    VXR enough
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    Quote Originally Posted by Cal93 View Post
    Good gains there Stu!
    Would have squeezed a wee bit more out if I got the map tweaked with the cat back. All back to standard and sold now
    Summit White GTC - GONE
    Replaced by Mk7 5dr Golf R
    My Progress Thread

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