2011 - 2016 GM 6.6L LML Duramax | Engine Tuning by PPEI
18 promo codes
CARB EO Pending PPEI's LML tuning provides 150+ HP gains over stock, towing effortlessly, and increases acceleration drastically. Tuning engineered for optimal efficiency. Level 1: +30 HP Level 2: +60 HP Level 3: +100 HP Level 4: +120 HP Level 5: +150 HP
Save on 2011 - 2016 GM 6.6L LML Duramax | Engine Tuning by PPEI with a PPEI Tuning promo code
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20% OFF ALL PPEI ENGINE & TRANSMISSION CALIBRATIONS
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