Just bought a cheap vRS SE as a project, and it is lacking a lot of power, previous owner had told me that it was mapped to Stage 1 running around 160-170bhp. However it doesn’t feel as though it is ‘pulling like a train’. There is an air leak in a pipe leading into the intercooler, I’m not the most advanced when it comes down to the mechanics of cars, but I’ll attach a photo of it. When putting my foot down, you can hear the sucking/whistling noise when around 3000-3500revs. The previous owner had told me that the leak could cause a cloud of black smoke from the exhaust, but I do not know if that’s because of the leak or just that’s its a diesel. Do you anyone know what pipe this is? And should I replace the whole Side mount intercooler or just the pipe? 
Thanks

Yeah your intercooler pipe has popped out there.

 

Firstly undo the screw that you can see and pull the pipe right out and check the end. You might need to release the retaining clip too. If the end is ok and not broken by being forced out while screwed in then just put it back in ensuring it's seated properly. Then snap in the clip then put the screw back in. You might need to put another in the top if it pops out again.

 

Hope that helps, let us know how you get on.

Thanks for the reply @HeavyMetalRich

I haven’t gotten around to check if the end of the pipe is damaged or not. However, I found a pipe on Facebook MarketPlace which looks very similar to my damaged one. I will attach it below, do you think once this is sealed I will regain back the power of the car. As I was told before the pipe burst, it was running supposedly 160ish bhp, now it feels as though its running around 90bhp. 
I did change the four glow plugs yesterday and it has definitely made the start up of the car better.

Does anyone have any ideas on how it has lost it’s power? As it is a high mileage Fabia vRS

Thanks

That pipe having popped out will be causing some of, if not all of, a power loss as you are losing boost. 

 

You can try putting your pipe back in properly, making sure the clip is secure, and see how long it lasts. But I think, before the previous owner has put a screw in to hold it, the pipe popping out has been an issue before.

 

The pipe in your pic looks right. There will be a way to check the part number is right on this forum.