My mobile Porsche tech made the mistake of popping in to have a coffee with me and I persuaded him to fit this for me as it had just arrived.
With the gen1 I had always been an advocate of staying with the OE airbox and fitting a sports filter and res plug hose kit , as after much research I found the OE airbox was the only true cold air induction available .
But after getting my gen2 and upon investigating finding huge envelope sized vents in the bottom of the airbox with just a mesh cover to allow rain water to drain away I came to the conclution that the gen2 OE airbox cannot be true cold air intake as was the gen1 ,So an option to mod reared its head :grin: after reading that Fabspeed had carried out temp comparisons between the air in an OE gen2 airbox and their duel cone competition kit and found it to be the same (this did not surprise me given the huge water drains in the OE one) I decided that it might be time to see what this type of mod would do if anything .as I was considering this as luck would have it a used gen2 one was listed on here (thanks Carl) well that must be fate and I am supposed to try it I thought
so I grabbed it. even more fate the member selling was due to do a job several days later only a mile or so from where I live. So we arranged to meet .
Anyway its now fitted and this is my initial thoughts .
Its very well made and very light the duel cone carbon twin feed is a piece of art , the Carbon heat shield is a bit flimzy and could have been better made but with some tweaking I am confident it will be good , the reason I say this is when the engine twists at speed I can hear a little rattle what I plan to do is to remove the heat shield add a layer of some form of padding between where it sits and the chassis it sits on ,also it fixes in place using two of the bolts for the engine mounts again a couple of rubber washers will be put between it and the mount , I also plan to fit something like the plastic rim protectors across the top and cut them down to fit this should stop any contact between the engine bay lid and the carbon heat shield .
the duel cone section as I said is very well made and is held in place by several jubilee clips holding it to the throttle body so it is free to move with the engine the gen2 duel intake ducts sit nicely above the cone filters, as I have forward facing intake scoops I antisipate a ram air effect will happen .
So I took it for a good run today and found a couple of sections of private road where I was able to test it up to 130mph . these are my thoughts the car feels more freely reving than the oe airbox with a BMC filter which was already far better than with a stock filter. it feels quicker in the low power band and feels like it gets there with much less effort. It seems that the increase in airflow must be increasing gas exit as the exhaust note has changed slightly even without the extra induction howl when you boot it, Another observation which I have yet to fathom out (ideas welcome) my cargraphic full valved exhaust the valved set up was connected by a small tube to the gen2 resinator box which is under the airbox this has now been blanked off with the new set up . So was my valved set up working like PSE and opening and closing slightly with the revs as well as full open and close on the key fob , is it now always open like the carnwal bypass and does this account for the slightly different exhaust note , there always were lots of crackles and pops with this exhaust but there seem to be even more now :grin: :thumb: over all it has exceeded my personal expectations as I genuinly was expecting more sound but not a noticable improvement in performance.
But I must note that I have a full cargraphic sports exhaust with 200 cell cats and an IPD plennum set up ,so it may or may not be the same for others :dont know: this was the last thing on my list to do before my final modification of my remap in my chase for more BHP than a stock GTS and hopefully a better power curve :grin: :grin:
With the gen1 I had always been an advocate of staying with the OE airbox and fitting a sports filter and res plug hose kit , as after much research I found the OE airbox was the only true cold air induction available .
But after getting my gen2 and upon investigating finding huge envelope sized vents in the bottom of the airbox with just a mesh cover to allow rain water to drain away I came to the conclution that the gen2 OE airbox cannot be true cold air intake as was the gen1 ,So an option to mod reared its head :grin: after reading that Fabspeed had carried out temp comparisons between the air in an OE gen2 airbox and their duel cone competition kit and found it to be the same (this did not surprise me given the huge water drains in the OE one) I decided that it might be time to see what this type of mod would do if anything .as I was considering this as luck would have it a used gen2 one was listed on here (thanks Carl) well that must be fate and I am supposed to try it I thought
so I grabbed it. even more fate the member selling was due to do a job several days later only a mile or so from where I live. So we arranged to meet .
Anyway its now fitted and this is my initial thoughts .
Its very well made and very light the duel cone carbon twin feed is a piece of art , the Carbon heat shield is a bit flimzy and could have been better made but with some tweaking I am confident it will be good , the reason I say this is when the engine twists at speed I can hear a little rattle what I plan to do is to remove the heat shield add a layer of some form of padding between where it sits and the chassis it sits on ,also it fixes in place using two of the bolts for the engine mounts again a couple of rubber washers will be put between it and the mount , I also plan to fit something like the plastic rim protectors across the top and cut them down to fit this should stop any contact between the engine bay lid and the carbon heat shield .
the duel cone section as I said is very well made and is held in place by several jubilee clips holding it to the throttle body so it is free to move with the engine the gen2 duel intake ducts sit nicely above the cone filters, as I have forward facing intake scoops I antisipate a ram air effect will happen .
So I took it for a good run today and found a couple of sections of private road where I was able to test it up to 130mph . these are my thoughts the car feels more freely reving than the oe airbox with a BMC filter which was already far better than with a stock filter. it feels quicker in the low power band and feels like it gets there with much less effort. It seems that the increase in airflow must be increasing gas exit as the exhaust note has changed slightly even without the extra induction howl when you boot it, Another observation which I have yet to fathom out (ideas welcome) my cargraphic full valved exhaust the valved set up was connected by a small tube to the gen2 resinator box which is under the airbox this has now been blanked off with the new set up . So was my valved set up working like PSE and opening and closing slightly with the revs as well as full open and close on the key fob , is it now always open like the carnwal bypass and does this account for the slightly different exhaust note , there always were lots of crackles and pops with this exhaust but there seem to be even more now :grin: :thumb: over all it has exceeded my personal expectations as I genuinly was expecting more sound but not a noticable improvement in performance.
But I must note that I have a full cargraphic sports exhaust with 200 cell cats and an IPD plennum set up ,so it may or may not be the same for others :dont know: this was the last thing on my list to do before my final modification of my remap in my chase for more BHP than a stock GTS and hopefully a better power curve :grin: :grin: