Well it's been fitted.... My impressions are fairly insignificant compared to Kevin (the owners) but I'm sure he'll chime in soon. - Silencer is F**KING small -looks lost in the engine bay - reasonable weight loss over standard... (muffler weighs 8kg). - it does away with the fixing bracket behind the rear bumper and bolts to the gearbox! (so more weight loss) - It looks like a race item.. not pretty. Sounds: Interesting.... not as immensely loud as we had expected but then the CS runs a muffler bypass valve so the stock benchmark is VERY loud anyway. At low rpm, it's lovely - the stock CS is still a little bit "sewing-machiney" before the valves open and little agriculural. Well with the NGT Tubi its a LOT more racy and deeper - more aggressive - almost as if race mode and valves are always open....and yet strangley NOT too loud either... nice. At WOT There are two *KEY* differences IMO with the regular CS system - The NGT system does away with the silly non-linearity of noise the stock CS muffler gives. There are no valves on the Tubi so the sound builds and builds to a pleasing crescendo from idle to the redline instead of getting the explosion of noise when the valves would open as per the stock system and getting NOTHING when they're closed. At WOT it is every bit as loud as the muffler bypass channel operated on the stock system.... despite having exhaust flow channelled through a muffler... The second KEY difference is that the system has one extra layer of noise over the stock system.... a slight but discernible howl... it's like the stock exhaust note has been "cleaned" up and made ever so slightly more musical.. WITHOUT losing it's rawness (especially evident on low rpm downshifts - a little howly woofle type noise (my God - how sad am I ) ) When we recorded it, the system was brand new but this "howl" was definitely there and getting more distinct with every mile All in all, I think it's a good product (yes I know I sell them but I'm not a bullsh!tter...) The stock system is tough to improve on and the differences between it and the Tubi NGT are all reasonably small....but in terms of small size, lower weight, much nicer low rpm noise and a slightly *sweeter* WOT noise, the Tubi NGT has the CS muffler beaten... A nice way of adding a little bit more to what is pretty much a perfect car. Power increase?? - Can't tell - didn't drive it (owner asked but I'd rather not)- Kev will have to tell you if the car felt any different from the butt-dyno. Videos are going to be on our website in a few days. Kevin - what do you think?