BattleSnayke

My mate had a 2017, with a Roush stage 2+ kit... was mental. Over 400kw atw, covered by a factory warranty.

Nothing too wild, waxed the fk out of it and new tyres fitted. Michelin Pilot Sport 4, if anyone cared.

I've noticed in my 97 STI RA that when lightly pushing the gas over 100km/h in 5th the whole car starts shuddering (i.e. keeping the car cruising at 105km/h). When i put my foot down it seems to stop. Its unnoticeable at any other speeds, can't feel it specifically through the wheel etc. There is possible a low-pitch drone from the diff, but assumed that it's RA that i'd hear noises that you normally wouldnt in other models, but the shaking doesnt seem right. Any ideas? Sorry for the terrible explanation.