Seller notes

Discounted price for listing : https://www.ebay.com/itm/393705290872 Complete set of 24 springsThe set prevents valve float under high boost pressures due to springs greater stiffness compared to the OEM springs ( +45% ) M57 has really weak springs from factory. This causes these engines to stop power production with higher boost pressures , issue gets worse with more boost and exhaust manifold pressure. If the valve springs are weak, the springs may not be able to push the valves all the way sh...

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