Mercedes AMG M156 6.2L Performance Underdrive Crank Pulley (2007 - 2012) Downpipes

Mercedes AMG M156 6.2L Performance Underdrive Crank Pulley (2007 - 2012) DownpipesFits E63, C63, CLS63, CL63, S63, SLS63 The Ultimate Performance and Design (UPD) M156 Underdrive, lightweight and strengthened crank pulley is designed to increase power and torque by slowing down the rotation of all the engines accessories. By providing a much lighter crank pulley made of billet aluminum steel verses low cost cast iron used on the stock crank pulley: Your throttle response, engine performance and MPG will be improved and turbo will

All cold air induction kits come in black

77 mm in size up to 3+ psi increase with tune (as compared to a stock supercharger pulley)

Kit comes with instructions

meticulously crafted from high-performance 7075 super strong aluminum alloy

🔧 Easy Installation: Designed with a hassle-free installation process in mind

NOTE: ** If you have a NPP equipped corvettes

no modifications required

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High quality 304 stainless steel and OEM style heat shields

Plus we use 12

This combo is equal to more than a 185mm crank pulley in HP/TQ but much easier to install and less stress on the crank key way

this is the custom tune you need for your added boost and other mods you may have