Before i start congrats on reaching the knock out rounds of the world cup

I am running 560 hp at the hubs from my APS TT set up and have got through two sets of exhaust valve stem seals due to the extra boost and heat so am looking for a set that would hold up better. I came accross these and noticed some of you are using them over there, do you think they would hold up under the extra power or would you suggest another brand, thanks.

http://www.conceptzperformance.com/C...481.178.225.18



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