Welp it seems my tranny has gone out on my WRX. I notice a high pitch winding noise a weeks ago while I was driving. I took it in and the whining is coming from the transmission and there seems to be metal shaving too. So it was suggest to replace the transmission . Total cost was $4,000, extra $500 for clutch and machining the fly wheel. Tranny is used 40k for $2,400 . Just wondering if this a average cost? Also any suggest for upgrades?