This is complete list of mods made to my 2016 M3W with brief comments. All well before warranty ran out and seemingly not affecting it.

Fairbourne screen replaces originals - less bufetting, improves driving experience
Two eared front wheel spinners replace hex ones - cosmetic improvement and easy to use
25mm steering wheel spacer - greater leg clearance, easier steering, wheel now Q/R
Springs and proper E clips fitted to bonnet fixings - a little easier to remove/replace bonnet now
280mm fuel sender swapped in, later resistor mod. - each gave improvement but still not perfect
Track rod ends painted matt black to match rest of suspension - made a note to do this after seeing rusty ones on relatively new car
Black thumbscrews replace allen head on rear tray - much easier and quicker to remove tray without tools
Panels behind seats sealed, draught excluder and pipe insulation added - noticeable reduction in transmission noise
Sound deadening rubber added under seats and footwell - no noticeable improvement
NGK Iridium spark plug swap - perceived better starting
Xenon headlamp bulbs replace QH originals - huge improvement in night time use, white light with good dip cut-off
LED bulbs replace side lights - much lower power consumption and whiter light, use them all the time
Reversing light fitted on top of rear light cluster - wiring and switch already there so why not
Steering coupling adjusted to place wheel spokes normally at 8, 12 and 4 o/c - can now easily see tacho with probable safety gains
Rubber plug fitted in redundant bellhousing access hole - keeps the crud out
M3W lapel badge cut down and glued to steering wheel centre - neat, discreet cosmetic mod.
Rear view wing mirrors replaced with Lucas type - no blurring due to vibration but drivers side view limited
Small central rear view mirror fixed to Fairbourne screen - to correct above and give overall improvement on original
Large metal washer on oil tank cap seal - to stop rubber deteriorating (now OE)
Small stick-on elasticated side pockets added to footwell sides - useful but wish I'd fitted slightly larger
Rocker and timing covers powder coated gloss black - personal cosmetic improvement, S & S logo picked out in red
Front wheels and air cleaner cover powder coated metallic silver - wire wheels can be seen now
Excelsior Comp H front tyres fitted at same time - first impression, quicker, lighter steering
Front mudguards have yellow spats painted on leading/trailing edges - can be seen more easily, quite like the splash of colour
Fixings for above and elsewhere replaced with stainless - ongoing cosmetic no brainer given the opportunity
Passenger footwell locker - handy Christmas prezzy
Rear mudguard kit - long overdue and very necessary IMO
Nautilus twin tone air horn - much improved warning
AR stage 1 air cleaner/exhaust kit - better engine breathing and power delivery, great sound
Magnecor KV85 competition plug leads - easier starting from cold

The AR stage 1 kit (exhausts + S&S air cleaner ) came out around £980 inc. VAT which seems good value for money given current prices from other sources.


Richard

2018 Roadster 3.7
1966 Land Rover S2a 88
2024 Royal Enfield Guerrilla 450
1945 Guzzi Airone