Hi guys I haven't posted anything in a while since I sold my last 2000 e39 m5. I recently bought an 03 m5 with 84k miles good maintenance all service receipts and I'm the third owner. Ok down to business I recently did a complete exhaust system free flow cats, resonators, xpipe and 2 1/2 inch piping, homemade intakes, and reflash with shark injector. Took it to a dyno yesterday and got max 329whp and 334 torque. Is this normal? I've seen bone stock m5's put down that amount. Please tell me what are your opinions sorry if I'm asking a question someone else has already posted but i really need to know thanks in advance 😊
E39 m5 whp?
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