Well guys I must say I am impressed. This is all you can see re this serious treatment to my S4. The pulley looks OEM but just measures smaller. The rest of it, IS IN THE COMPUTER so to speak. The car echos all that Warren says about his S5.
I am extremely happy that the SC sound is just a little more. Not much. This is due to the boxed construction of APRs design rather than the Ram Air design. Its a soft throaty sound which is kind of sexy, (in my mind anyway). Yeah, give it the full beans and there it is, along with an insane exhaust note, which took me by surprise, but the rest of the time you choose to bring it on, or not.
The tune. When you are just up at the shops there isn't really any noticeable difference until you want to go a bit quicker. The way way more extra power is always there. Throttle response is a lot more immediate when you ask it, but as an every dayer its no less civilized than before. The increased kWs makes it a lot quicker off the line and more Nms just keeps it going. It really is without a doubt a WISC now. Had to slot an acronym in for jdp.
Just got one more bit of bling to go. A mate is going to sell me an R8 coolant cap when he sells his car. He'll just put the original one back. I was gifted an oil cap and it'd be nice to match them up. All done under the bonnet.