I sent in my Hilux 2.0 Vvti for service. Got a call from Toyota saying that my front disc pads need to be replaced. Total cost close to R2000 inc vat. I find this totally a rip off. I phoned around for other quotes. And a friend of a friend, who is a qualified mechanic with his own workshop, said he could change it for R50 per side. He can get a good pair of brake pads for around R300-R350. Would changing it other than using Toyota have any effect on my service plan?