Thats sounds awesome, I have a s2000 air filter, standard DV and standard TIP, and my APY doesn't whoosh like yours
But im glad lad to say, I have a badger 5 v3 tip in the post
Anyone have any advice on the v3 installation??
You should've just put a 007p DV on it for bling factor, it's also been proven to fail a lot more than the standard one and only £20-30 more to get those extra scene points. You may even find one on eBay for cheaper than that, which will probably have the old piston design that will leak over time - which is why Forge have re-designed it and they will be happy to sell you a valve service kit to replace the old design at more cost