for lsx cars
http://www.ls1tech.com/forums/dynamometer-results-comparisons/1331073-speed-inc-tuned-h-c-i-a4-346-495rwhp-426rwtq.html
http://www.ls1tech.com/forums/attachments/dynamometer-results-comparisons/253996d1284674798-speed-inc-tuned-h-c-i-a4-346-495rwhp-426rwtq-arh-ewp-flowmaster-dyno.jpg