guessing Toyota themselves couldn't have known the relatively short plugs life for these engines so could only put an arbitrary figure on milage, it's up to us as long time users to fine tune a realistic change schedule
Personally I’d go with 0.7 gap, gives a slightly smaller but more powerful spark against a bigger but weaker one. At full throttle when load of fuels pouring into cylinder a stronger spark gives a more consistent burn
it's pad build up, almost impossible to warp disc, they're designed to glow red hot without issue, it'll pass with hard braking although might worse before disappearing
after fitting the air Tec red twin scoop have noticed centre console from just behind the gear lever back to behind the cup holders gets quite warm to touch so guessing good amount of air is reaching transfer box
inc height adjuster mounts, threads in perfect condition, kit as supplied by String Theory
https://tinyurl.com/ay2dph9u
North London - collect or add extra delivery
£200
you're still going to kill the inside tread first on either of the front unloaded tyres as it 'scrapes' round tight corners, only way is to increase caster
having a good understanding how caster works, how it induces dynamic camber and stands the wheel more upright the more you turn it then...
why would they, they maybe service 3 or 4 GR's a year so not inclined to buy and stock an expensive unique oil when they can get away with using the oil from the other 500 regular Yaris's they service
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