Thinking fitting a panel filter onto my Tdi VRS, possibly the Piper cross or VW racing ones they have on the Awesome website, anyone done it and can say if it's worth it or are there any other types that are better suited?

You tend to find that unless you're running a high stage of tune on a diesel that the standard filter is more than up to the task.

As above, TDI's standard airboxes have excess air flow anyway, if your going on to fit turbo back exhaust, intercooler and custom map then yes go for it, if not, its a waste of £50. 

Cool thanks, possibly looking at stage 1 at some point so will probably wait until then.

I have a Pipercross panel filter fitted. The only noticeable difference over stock is that it revs a little more smoothly. No noticeable performance or induction noise difference over stock.

Thinking fitting a panel filter onto my Tdi VRS, possibly the Piper cross or VW racing ones they have on the Awesome website, anyone done it and can say if it's worth it or are there any other types that are better suited?

Will have no effect.

You need to understand the principle difference between diesel and petrol....

When you step on the throttle in a petrol you basically open the throttle body to allow in more air, the computer measures the throttle position for demand and air quantity then fuels accordingly (obviously on a modern car there's lots of other sensors!) but it basically adds fuel to the air. Better airflow more power.

On a diesel when you hit the throttle again it measures demand via the throttle position, but this time it adds fuel and then adds air either via egr or by opening the throttle valve or abit of both....so it adds air to the fuel....when you fit a tuning box it connects to the injectors and basically just tells the injectors to add more fuel giving more power.

At idle most modern diesels run nearly 100% egr for emissions so it's burning its own waste gasses not air, if you did that to a petrol it would stall.

Intercooler upgrade, dpf delete and performance exhaust (if you want the most power you can get) and a good custom remap which runs smokeless but exploits the most it can from your set up (and a panel filter upgrade if you like)

Your looking at £1500-2000 for that set up if it's the way you want to take the car, you'd get around 260-280bhp and 580Nm (standard clutch dependant), maybe a little more.

Or you could leave all that alone and just get a stage one map, Shark Performance spent a lot of time developing the Octy III VRS tdi and there Stage 1 map will give you 235bhp and 500Nm for £499. Almost as much power, save yourself £1-1500, plus get the STS Sytem and you can switch between tuned and standard if you need any warranty work done

http://www.sharkperformance.co.uk/index.php?route=product/category&path=496_513_536_538

I have a Pipercross panel filter fitted. The only noticeable difference over stock is that it revs a little more smoothly. No noticeable performance or induction noise difference over stock.

 

I had a pipercross panel on my MkII TDI VRS. I found neither particular benefit nor drawback, but perhaps a subtle contribution to reactiveness and smoothness.

On a diesel when you hit the throttle again it measures demand via the throttle position, but this time it adds fuel and then adds air either via egr or by opening the throttle valve or abit of both....so it adds air to the fuel....when you fit a tuning box it connects to the injectors and basically just tells the injectors to add more fuel giving more power.

At idle most modern diesels run nearly 100% egr for emissions so it's burning its own waste gasses not air, if you did that to a petrol it would stall.

Not strictly true. As far as I'm aware diesels do not have a throttle butterfly as such, the only butterfly valve that is in the system pulls in to restrict the air flow before the EGR thus creating a vacuum which helps draw more exhaust gasses from the EGR. Earlier PD engines and ones with injection pumps did not have this feature at all.