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Thread: Air Box Mods...... little question for you all

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    Regular Member Coastie's Avatar
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    confused Air Box Mods...... little question for you all

    I have the K&N filter ...... but Im unsure as to what to do as far as the airbox mods go..... seen the how 2's and there are obviously 2 bits you can do...

    The bit at the bottom and the the bit at the top of the airbox...... which one should I do ? or should I do both

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    Regular Member vectra 120's Avatar
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    I would just do the bottom one just unclip it then reset your ECU

    Steve

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    Regular Member Coastie's Avatar
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    Quote Originally Posted by vectra 120 View Post
    I would just do the bottom one just unclip it then reset your ECU

    Steve
    Reset my ecu ??? explain please

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    Regular Member rushy's Avatar
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    Vehicle : SRi


    Engine : Z22SE (2.2 Petrol)

    Year : 2004

    Mileage : 137000

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    Just disconnect the battery for about 15 mins. The ECU will then learn the new characteristics of the air filter.

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    Regular Member Coastie's Avatar
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    hurrah for you !! thanks peeps, so none of you advise doing the adjustment to the top part of the airbox then ?

  6. #6
    Regular Member rushy's Avatar
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    Vehicle : SRi


    Engine : Z22SE (2.2 Petrol)

    Year : 2004

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    I'd leave that on mate, the "trumpet" is tuned by length and actually affects torque I am led to believe.

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    Regular Member lee_eardley's Avatar
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    do you need to reset the ecu??? noticed on my 1.9cdti 150 there was a slight differance....without reset

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    Regular Member rushy's Avatar
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    Vehicle : SRi


    Engine : Z22SE (2.2 Petrol)

    Year : 2004

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    It was a tip a from a company that remaped a few members cars. It gave Big Phil's GSI and extra 15bhp straight of the bat. He had fitted a free flowing Zorst and filter, but they only started to perform after the reset.

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    Regular Member Coastie's Avatar
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    Thanks for that peeps, any more comments would be appreciated

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    i tried all the stages of this mod ! just panel filter then cut off bottom inlet and finally removed the trumpet ! which gave me better throttle response and brought the fuel economy up above 28 mpg which was a first for my alcoholic 2.2 SRI !! it may effect other models differently ? but mines definately better with the full mod done !

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