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Thread: astra gsi turbo stage 1???

  
  1. #1
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    sidds GSi's Avatar
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    astra gsi turbo stage 1???

    Im getting a stage 1 map from mpg on my astra 2004 gsi z20let. woundered what sort of power im looking at. mods i have are:

    ram air induction system
    large intake pipe
    iridum spark plugs
    exhaust system scorpion pre cat removed centre silencer removed

    thanks

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    MrStush's Avatar
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    On a standard Turbo, anything upto 250bhp is deemed safe... All of this will depend on Turbo and Engine condition mind.. But as a safe bet around 230-245bhp...
    Star Silver SRI Turbo..'Red.Dot Reloaded'..Cybox Precat, Cybox Catback SS Exhaust..K&N Panel Filtered...9Ltr EDS SMIC!!.....

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    gsi_10's Avatar
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    I have a stage 1 MPG map, cat back stainless, uprated panel filter, cossie plugs, hard boost pipe and looking at circa 235bhp, will be slightly down on that now as i need a service

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