CLS 450
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RENNtech ECU+ Upgrade | C257 | CLS 450 EQ Boost | 452HP / 475LB-FT | 3.0L I6 Turbo EQ Boost | M256 | MY2018+
ECU+ Upgrade | Up to 452 HP / 475 LB-FT | Gains: +60 HP & +76 LB-FT