NXB

sound generator, or "sound tube" is that plastic contraption from side of intake, with resonator in mid, and passing to cabin for more noise inside w/o extra loudness outside.
If better or not with or without it, simplest to test with it plugged off or unplugged in cabin, as it is subjective thing (eg. with stock exhaust i prefer it still operating, as subjectively car/engine seems duller/more lifeless (even if i know it's placebo impression and engine operates 100% same)). For "free plug" for test purposes one can reuse plug of 2nd cig lighter port in glovebox. If one likes better it plugged off, one can consider of doing sound-tube delete, for very slight weight saving and some cleanup of underbonnet space, by plugging off where sound tube connects to intake and where it goes in cabin.

Hi guys,
I have just had a NA tune up done and CAT back exhaust fitted at Tuning Developments in Warrington and I just had to share how amazing it is.
Tuning Developments were great throughout.
What I have now is amazing. Horsepower is increased by about 20 with a more linear delivery. Feels great.
The best part about it is the noise from the exhaust. I am not a young hooligan so I didn't want something that was stupidly loud. What I have now is perfect. It has a lovely deep throaty growl at idle, louder that my stock exhaust and much deeper but not so loud that I will wake the neighbours when I head out in the mornings. Similar when driving with a steady throttle at a fixed speed, the noise is lovely but not massively loud.
The real joy comes when you put your foot down... it is just an absolutely perfect deep rumbling loud noise... amazing. I also get a bit of a burble when coming off the throttle. It makes me smile every time. I haven't had it noise tested so I don't know the numbers but someone I know had it done and they registered 95 dB on a track day.
I would seriously recommend getting this done.

Hi guys,
I have just had a NA tune up done and CAT back exhaust fitted at Tuning Developments in Warrington and I just had to share how amazing it is.
Tuning Developments were great throughout.
What I have now is amazing. Horsepower is increased by about 20 with a more linear delivery. Feels great.
The best part about it is the noise from the exhaust. I am not a young hooligan so I didn't want something that was stupidly loud. What I have now is perfect. It has a lovely deep throaty growl at idle, louder that my stock exhaust and much deeper but not so loud that I will wake the neighbours when I head out in the mornings. Similar when driving with a steady throttle at a fixed speed, the noise is lovely but not massively loud.
The real joy comes when you put your foot down... it is just an absolutely perfect deep rumbling loud noise... amazing. I also get a bit of a burble when coming off the throttle. It makes me smile every time. I haven't had it noise tested so I don't know the numbers but someone I know had it done and they registered 95 dB on a track day.
I would seriously recommend getting this done.

Hi guys,
I have just had a NA tune up done and CAT back exhaust fitted at Tuning Developments in Warrington and I just had to share how amazing it is.
Tuning Developments were great throughout.
What I have now is amazing. Horsepower is increased by about 20 with a more linear delivery. Feels great.
The best part about it is the noise from the exhaust. I am not a young hooligan so I didn't want something that was stupidly loud. What I have now is perfect. It has a lovely deep throaty growl at idle, louder that my stock exhaust and much deeper but not so loud that I will wake the neighbours when I head out in the mornings. Similar when driving with a steady throttle at a fixed speed, the noise is lovely but not massively loud.
The real joy comes when you put your foot down... it is just an absolutely perfect deep rumbling loud noise... amazing. I also get a bit of a burble when coming off the throttle. It makes me smile every time. I haven't had it noise tested so I don't know the numbers but someone I know had it done and they registered 95 dB on a track day.
I would seriously recommend getting this done.

Hi guys,
I have just had a NA tune up done and CAT back exhaust fitted at Tuning Developments in Warrington and I just had to share how amazing it is.
Tuning Developments were great throughout.
What I have now is amazing. Horsepower is increased by about 20 with a more linear delivery. Feels great.
The best part about it is the noise from the exhaust. I am not a young hooligan so I didn't want something that was stupidly loud. What I have now is perfect. It has a lovely deep throaty growl at idle, louder that my stock exhaust and much deeper but not so loud that I will wake the neighbours when I head out in the mornings. Similar when driving with a steady throttle at a fixed speed, the noise is lovely but not massively loud.
The real joy comes when you put your foot down... it is just an absolutely perfect deep rumbling loud noise... amazing. I also get a bit of a burble when coming off the throttle. It makes me smile every time. I haven't had it noise tested so I don't know the numbers but someone I know had it done and they registered 95 dB on a track day.
I would seriously recommend getting this done.

Hi guys,
I have just had a NA tune up done and CAT back exhaust fitted at Tuning Developments in Warrington and I just had to share how amazing it is.
Tuning Developments were great throughout.
What I have now is amazing. Horsepower is increased by about 20 with a more linear delivery. Feels great.
The best part about it is the noise from the exhaust. I am not a young hooligan so I didn't want something that was stupidly loud. What I have now is perfect. It has a lovely deep throaty growl at idle, louder that my stock exhaust and much deeper but not so loud that I will wake the neighbours when I head out in the mornings. Similar when driving with a steady throttle at a fixed speed, the noise is lovely but not massively loud.
The real joy comes when you put your foot down... it is just an absolutely perfect deep rumbling loud noise... amazing. I also get a bit of a burble when coming off the throttle. It makes me smile every time. I haven't had it noise tested so I don't know the numbers but someone I know had it done and they registered 95 dB on a track day.
I would seriously recommend getting this done.

Hi Lauren,
No plans for it as yet. I would like a bit more acceleration but will give it a couple of months before splashing out.