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damn, my second shaft also has a vibe problem so I'm sending it back to Powertrain. Although neither shaft from them has worked out for me, I have to say that their customer service has been nothing short of excellent. I am getting a full refund on the purchase price fully 10 months after initally ordering the product. The performance benefit was definitely felt with their product but I cannot live with the vibration/hum issue at highway speed. While I was out testing the shaft yesterday and playing around with my boost settings in the awesome cool weather we are having I got a chance to have a little acceleration contest against a nice new yellow Z06 from ~70 up to 120 or so. I am stunned by how fast my Z is, it was not even close...I didnt walk away, I RAN away like he was standing still w/boost at 20psi...it was amazing. I let him catch up and he went for it again and same results...I LOVE THIS CAR!
 1990 Twin Turbo 5spd Stillen Stage XI+ "No Show,All GO" 1999 Maxima SE 5spd ECZA member #0314 ..."If it doesnt make it faster, I dont care"...yellowZXTT |
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