i just had the 2nd gear syncro replaced at the dealer. now when i accelerating around 6000 - 6500rpm, right after vtec has engaged, i get a weird noise. i have never heard this before. it's a hard sound to explain, but kinda sounds like a low pitched grinding noise. the noise goes away after around 6500rpm OR if i let off the gas. this also happens in all the gears, 1-5, so i don't think it's the tranny anymore. could it be flywheel wasn't put on right or something? also checked my oil, it's full any help??
btw, car is a 2000 itr, 43km (aprox. 28k miles) fully stock
thanks!

 

my car sometimes has some weird noise too when vtec-ed. it comes and goes. so i dont' care about it too much. mine is almost 130k km's