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Thread: astra mk4 1.7tdi faster

  
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    arron2211's Avatar
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    astra mk4 1.7tdi faster

    hi everyone new to the forum and in need of your advice
    i have a 2000 mk4 1.7dti and want to make it a little faster and would like to know how
    my friend said to change the exhaust from the cat back as this should improve the hp but do i need a special exhaust with it being diesel or will any aftermarket exhaust for a mk4 astra work

    any help would be great as i love my car just wish it was a little faster

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    redror's Avatar
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    i dont think a exhaust would make much difference really, id suggest remapping it got mine done for £150 and it takes it up to approx 110bhp and a load more torque, fuel economy goes down slightly and itll smike a bit more but its well worth it, ull be amazed at the improvement

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    danyellowastravan's Avatar
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    u not worried about the smoke tho? im thinking of remapping but dont want to ask too much of my turbo and it go.... that could be where smoke is from?

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    Billy Dean's Avatar
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    If the remap is from a reputable and established firm then there should be no smoking exhausts and there should be an increase in mpg, not a decrease. Plus you'll get the usual greater bhp and torque.
    Expect to pay around £250 for a decent remap.
    They will remap the ECU so that it uses fuel efficiently and therefore doesn't smoke.

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    redror's Avatar
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    i think my fuel economy has gone down because im now driving it a bit harder, i agree on a run it is better on mpg, i wasnt worried about the smoke no as im going forward, it might be worrying for the person behind me tho haha

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    stevierob's Avatar
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    Hi mate,
    A decat and a decent system will improve response and add a few bhp, but will work better with a remap to take all mods into account, just dont have a cheap map...

    steve
    power corrutps!!

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