Getting a group discount (labor charges) for seal replacement is quite difficult as the total work involved takes about 3 to 4 hours. Workshop must have the appropriate special tools and many workshop are NOT keen to just replace the vanos seals and charge you only for the labor charges. They rather do other higher value replacement parts. So far, workshops that fellow members had their vanos seals replaced are:- 1. Optimum at Kayu Ara 2. Naidu (air-con specialist) at under the tree, Jalan Gasing, PJ 3. WP Auto at Pandah Indah 4. Milan Motors, Sg Besi As to the labor charges, it varies from workshop to workshop so it is better to call them and ask for a quotation.