Can someone who may have already done this, advise if there is any difference to the sound when changing from comfort/sport/cupra mode on the
Cupra 300.
I suspect because you are taking out the resonator, this will just be loud all the time?
Can anyone confirm this as I'm interested but don't want to wake the neighbours every morning if it is constantly loud.
I had the delete done on my 5dr
290 DSG last week and it's brilliant. There isn't much of a difference between modes on a cold start up(i.e in the morning when your neighbors are sleeping), the car is definitely louder when starting than stock and mine even pops sometimes which it never did before. There is a noticeable difference between comfort and Cupra mode though at idle once its warmed up. Cupra mode make the car idle faster so the exhaust becomes noticeably louder.
When you are driving there is also a difference in sound. In comfort mode with the gearbox in D, you'd genuinely struggle to notice any exhaust work was done at all.
Only when you drive it hard in D mode, you start to get the exhaust note into the cabin and my car now "farts" in D mode when shifting which my car didn't do often when stock. When its in Cupra mode its a completely different car, the car revs harder and longer which gives a great sound but not annoying in the cabin with the windows closed, the DSG farts are much louder, they are a proper "crack" noise now instead of the "fart" the DSG is famous for. The biggest difference I feel though is the backfire when you are coasting off the throttle.
My car
NEVER did the pops and bangs when coasting back down through the revs. This seems to vary from car to car though as I test drove a different stock
290 from a dealer before I bought my own and it did pop and bang. There's a thread here on the forum where multiple people state their car does backfire and others not. Seems to be pot luck. Now, in Cupra mode, my car backfires constantly which I absolutely love, its the main reason I wanted to get the delete done and I'm delighted with it. But put the car back into Comfort and this stops and the car goes back to being quiet again.
At motorway speeds of 120kmh, there is almost no drone in the cabin, again you'd hardly notice anything was done, the radio basically covers any trace of exhaust noise. Up around 140kmh it does start to get a bit noisier and you will have to turn the radio up a small bit more to drown it out. Nothing I couldn't comfortably live with for years and I like my cars loud anyway so quietness is not my goal with the car. I am 25 though so your milage may vary with age
I will try and make a small video comparing modes on my car and show what it sounds like now. I have no "stock" video for comparison though so I cant show the difference from before. As a side note, I don't have the VAGSport kit, I just got a local exhaust company to make up the delete for me from 70mm SS that then mandrel bent on site. It cost €125 fitted. Video of the cold start up is below.