I was told by the previous owner that it is a world class t-5 all my mods are in my sig plus a 150 shot of nitrous. Now my question is 1-3 gear makes a whinning noise, 3rd gear being the loudest and first and second you have to listen to try to hear it. 4-5 I can hear any whinning at all. Now the trans shifts fine, doesnt pop out of gear or grind so is this something to worry about or take it easy on until I get the fund to get a new trans? With the mods in sig it should be somewhere in the 290-300 rwhp and with the 150 shot somewhere around 420+ rwhp, and from what I read the worldclass trans are supposed to be good to 550 hp and 450tq? Guessing thats at the flywheel? Thanks for the replys in advance.