I need help...i hear a wierd knocking noise underneath my car

[951evo]

Hello fellow evotuners...I hear a strange knocking noise underneath my car. I hear it everytime i take off, going from first gear and everytime i hit like a dip or a bump at low speeds...i really don't think it's my shocks or springs as i just recently got new bilstein and Tein springs...so i'm pretty much clueless of what it could be...Any suggestions?

[SicLanEvo]

I think the rear diff makes some noise on take off. mine does it sometimes. Maybe your exhaust is hitting your driveshaft. Is your car stock?

[tribalwithstyle]

check your sway bar endlinks 2 but if not iv had problams with rear diff bushing if u like to launch it hard alot