looks true to me, check out this post:
https://www.clublexus.com/forums/sho...threadid=43635

sad huh?

 

yup its real sad that you didnt read the entire thread

 

actually i did..
you can see it in his subject of the thread
"+5-15hp coolant line bypass LEXUS SC 300 400 "
he was wondering if it really does gain that much.
their were some post in that thread saying that the gain is not noticeable.
he said he saw this in ebay, and we all know how ebay is.. putting hp numbers in bold just to catch the eyes of people that dont know much