hello peoples
took some time to do this for all those who dont know
im sure all of you know what an mp9 airbox looks like - if not here is a hijacked pic cos i forgot to take one (sorry bofar )
now if u open the airbox and remove the airfilter, this is what you will see
the pipe you see is your bottom trumpet, connected to the bottom of the airbox by a small clip
what you need to do is disconnect the trumpet from the box by either using a screw driver or sharp object to bend away the plastic part where it clips in
the way i did it - honestly - was to actually bang the airbox with trumpet facing downwards till it broke off
once off, this is what you will see
notice the clip inside the airbox and on the pipe(right side)
once it is out, the front of the airbox will look like this
now for the top trumpet
if you have a look in the top half of the airbox, you will see this
you can either just pull it out as it is or you can disconnect the pipe below connecting to the throttle body
and it will then leave you with this
congrats you now have a detrumpeted airbox
DIY - HOW TO DETRUMPET AN MP9 AIRBOX WITH PICS`
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Re: DIY - HOW TO DETRUMPET AN MP9 AIRBOX WITH PICS`
nice naseem , sticky this in the FAQ section for sure.
BTW on 1.4's it's recomended to leave the top trumpet in as it increases air speed velocity
BTW on 1.4's it's recomended to leave the top trumpet in as it increases air speed velocity
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Re: DIY - HOW TO DETRUMPET AN MP9 AIRBOX WITH PICS`
I have a golf 4, opened my airbox b4 doesnt look any similar
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Re: DIY - HOW TO DETRUMPET AN MP9 AIRBOX WITH PICS`
U might want to re-install the top cone...I tested with removing each and then both the cones(on a loading dyno) and got the best results with lower cone removed and top cone left in(extra 3nm torque). (running a modified ABF with cams - 153hp and 176nm). the cones are there to tune the length of the induction system and reflect pressure waves up and down the inlet tract(engines do not flow, they start and stop due to valves opening and closing) and the correct length(and diameter) reflects the pressure waves(at a certain rpm) and the pressure wave then coincides with the next valve opening - a tuned length header does a similar thing on the exhaust side hence 4-2-1 or 4-1