2011-2016 GM 2500HD/3500HD 6.6L LM Duramax Exterior Upgrades

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AMP Research 19-04280-STA Replacement Controller Module | Universal
5.0
Quick shop
AMP Research 19-04280-STA Replacement Controller Module | Universal
AMP Research 19-04280-STA Replacement Controller Module | Universal

AMP Research 19-04280-STA Replacement Controller Module | Universal

Price
$99.99
AMP Research 75126-01A Power Step | 2007-2014 2500/3500
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AMP Research 75126-01A Power Step | 2007-2014 2500/3500
AMP Research 75126-01A Power Step | 2007-2014 2500/3500

AMP Research 75126-01A Power Step | 2007-2014 2500/3500

Price
$1,599.99
AMP Research 76404-01A OBD-II Splitter | Universal
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AMP Research 76404-01A OBD-II Splitter | Universal
AMP Research 76404-01A OBD-II Splitter | Universal

AMP Research 76404-01A OBD-II Splitter | Universal

Price
$119.99
AMP Research 76154-01A Power Step | 2014-2018 Silverado/Sierra 2500HD/3500HD
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AMP Research 76154-01A Power Step | 2014-2018 Silverado/Sierra 2500HD/3500HD
AMP Research 76154-01A Power Step | 2014-2018 Silverado/Sierra 2500HD/3500HD

AMP Research 76154-01A Power Step | 2014-2018 Silverado/Sierra 2500HD/3500HD

Price
$1,799.99
AMP Research 75407-01A Bed Step 2 | 2014-2019 Silverado/Sierra 2500HD/3500HD
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AMP Research 75407-01A Bed Step 2 | 2014-2019 Silverado/Sierra 2500HD/3500HD
AMP Research 75407-01A Bed Step 2 | 2014-2019 Silverado/Sierra 2500HD/3500HD

AMP Research 75407-01A Bed Step 2 | 2014-2019 Silverado/Sierra 2500HD/3500HD

Price
$329.99
S&B 84-1001 Mud Flaps for 2.5in Hitch Receivers | Universal
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S&B 84-1001 Mud Flaps for 2.5in Hitch Receivers | Universal
S&B 84-1001 Mud Flaps for 2.5in Hitch Receivers | Universal

S&B 84-1001 Mud Flaps for 2.5in Hitch Receivers | Universal

Price
$349
EGR BLF1009 Baseline Bolt-Style Fender Flares (Set of 4) | 2015-2019 Silverado 1500
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EGR BLF1009 Baseline Bolt-Style Fender Flares (Set of 4) | 2015-2019 Silverado 1500
EGR BLF1009 Baseline Bolt-Style Fender Flares (Set of 4) | 2015-2019 Silverado 1500

EGR BLF1009 Baseline Bolt-Style Fender Flares (Set of 4) | 2015-2019 Silverado 1500

Price
$299
AMP Research 75154-01A-B Power Step | 2014-2019 Silverado/Sierra 2500HD/3500HD
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AMP Research 75154-01A-B Power Step | 2014-2019 Silverado/Sierra 2500HD/3500HD
AMP Research 75154-01A-B Power Step | 2014-2019 Silverado/Sierra 2500HD/3500HD

AMP Research 75154-01A-B Power Step | 2014-2019 Silverado/Sierra 2500HD/3500HD

Price
$1,599.99
Rough Country PSR50718 Dual Electric Motor Power Running Board | 2007-2014 Chevrolet/GMC 1500/2500HD/3500HD
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Rough Country PSR50718 Dual Electric Motor Power Running Board | 2007-2014 Chevrolet/GMC 1500/2500HD/3500HD
Rough Country PSR50718 Dual Electric Motor Power Running Board | 2007-2014 Chevrolet/GMC 1500/2500HD/3500HD

Rough Country PSR50718 Dual Electric Motor Power Running Board | 2007-2014 Chevrolet/GMC 1500/2500HD/3500HD

Price
$1,099.95
AMP Research 76400-01A Plug-n-Play Conversion Kit for PowerSteps | 2014-2018 Silverado/Sierra 2500HD/3500HD
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AMP Research 76400-01A Plug-n-Play Conversion Kit for PowerSteps | 2014-2018 Silverado/Sierra 2500HD/3500HD

AMP Research 76400-01A Plug-n-Play Conversion Kit for PowerSteps | 2014-2018 Silverado/Sierra 2500HD/3500HD

Price
$219.99
Westin 28-33725 Outlaw Running Boards | 2014-2018 Silverado/Sierra 1500 & 15-19 2500HD/3500HD
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Westin 28-33725 Outlaw Running Boards | 2014-2018 Silverado/Sierra 1500 & 15-19 2500HD/3500HD
Westin 28-33725 Outlaw Running Boards | 2014-2018 Silverado/Sierra 1500 & 15-19 2500HD/3500HD

Westin 28-33725 Outlaw Running Boards | 2014-2018 Silverado/Sierra 1500 & 15-19 2500HD/3500HD

Price
$699.99
Rough Country 47119651B Hard Low Profile Bed Cover | 2014-2019 Silverado/Sierra 2500HD/3500HD 6.75ft Bed
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Rough Country 47119651B Hard Low Profile Bed Cover | 2014-2019 Silverado/Sierra 2500HD/3500HD 6.75ft Bed
Rough Country 47119651B Hard Low Profile Bed Cover | 2014-2019 Silverado/Sierra 2500HD/3500HD 6.75ft Bed

Rough Country 47119651B Hard Low Profile Bed Cover | 2014-2019 Silverado/Sierra 2500HD/3500HD 6.75ft Bed

Price
$649.95
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Once you've slapped on tons of power and performance to your 2011-2016 GM 6.6L Duramax LML, it's time to upgrade it's exterior to seriously set your truck apart from the rest. You can give your GM 2500/3500 it's own custom style and appeal with any of the premium exterior parts and upgrades offered here at Alligator Performance. We carry various accessories like aftermarket side steps, fender flares, grilles, mud flaps, roof racks and more so you can outfit your rig with some of the best looking and most aggressive upgrades on the market. You can shop and drive with confidence knowing we only work with the most trusted and reliable names in the business. Once you've finished outfitting your exterior, head over and check out our selection of GM 2500/3500 Wheels & Tires to complete your custom build! GM Duramax Fitments: 2011, 2012, 2013, 2014, 2015, 2016 GM 6.6L Duramax. Submodel Fitments: WT, Custom, LT, LTZ, High Country, 1LT, 2LT, Pro, SLE, SLT, AT4, Denali. Some exceptions apply, please see individual product pages for specific fitments.

GM Duramax>2011-2016 6.6L LML

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Welcome to The Garage – your one-stop shop for all your car care and maintenance needs. From premium oils and filters to top-notch car care products, we have everything you need to keep your vehicle running smoothly and looking its best. Whether you're a DIY enthusiast or a professional mechanic, our carefully curated selection of high-quality products will help you take care of your ride like never before.