Just received my retro kit today! Scheduled for install in about a week. Doing the switch. Took the plunge based on this excellent thread, so thanks to the OP! Can’t wait to hear it!

You are very welcome! You will love your PSE. Just a friendly reminder that the PSE may alter your driving habit. After I got my PSE, I started staying at a lower gear longer and accelerate harder to enjoy the intoxicating exhaust note. As the result, my MPG is suffering. 😁

Yes, I’ve had that problem since acquiring the 981. Just plain drive it too much and too far just to listen to it sing. I used to have a 930 and loved the sound of that, but have to say I’m enjoying the 981 even more. No doubt the PSE add-on will make it even more addictive! Had wished the car came with that option but it didn’t, so was glad to see how a retrofit would work.

Just got it back from the dealer install. Wow! Very pleased. A couple observations:

1) It is definitely louder than the stock system (2013 Base) even at idle.

2) It does have a drone at about 2-2300 rpm in 6th or 7th, but not too bad. Hopefully won’t be annoying on long trips. And it doesn’t appear to go away by switching the PSE off.

3) Really pops with shifts in lower gears (PDK).

Now I need to plan a trip! It is already addictive!

PS - For reference, I also reused my black twin tailpipe.

I kept the button kit just in case I ever might need a spare part. But I have absolutely no space to store the actual mufflers for selling on eBay etc, so left those. Not sure how easily they might sell but not even an option for me.

i know there are different sensitivity levels to what people define as “drone” but I have read elsewhere on here that the effect is more pronounced on PDKs for whatever reason. I have a manual and have noted 0 drone (but I may be less observant of it?). PSE is a “must-have” for me (have it on both our P-cars)..

Yes, that might be possible. While driving or accelerating,it is overall quieter with the switch off. That said, at idle the low end rumble stays about the same, while the overall volume is louder. In this first day, it seems the different exhaust/mufflers simply have more low frequency whether the switch is on or off. Lots of difference on volume, pops, gurgling, etc. And much stronger under throttle. Overall, love the improvement.

I guess it is possible the pdk makes some difference. At 2-2300 rpm, that’s right around “normal” freeway speed with the pdk, so that’s where I could hear the low end drone. That said, couldn’t really hear it with the radio on or the windows down, so not anticipated to make any real issue for me. It’s minor enough that it can be masked pretty easily.

Did my first tunnels today post PSE upgrade. WOW!!!