GM/Chevy
Optimize your Duramax platform with Seguler Precision Chevy & GMC Solutions.
Engineered specifically to master the sophisticated electronic and thermal calibration of the 6.6L and 3.0L Duramax architectures (including LLY, LBZ, LML, and L5P platforms), Seguler systems deliver clinical hardware optimization without disrupting factory digital networks. Our Chevy/GMC series focuses on flawless integration with GM’s strict ECM monitoring, featuring micro-machined sensory interfaces and thermal-stable wiring overrides that eliminate factory restrictions while safeguarding digital signal continuity.
⚡ GM ECM Calibration Alignment | Advanced Thermal Harness Guard | Micro-Tolerance Engineering.
Do not trust your Duramax's sensitive digital architecture to generic, rough-cut hardware. Upgrade to Seguler calculated engineering for unmatched powertrain efficiency, zero dashboard error codes, and elite structural reliability.
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Seguler 2007.5-2010 6.6L Duramax LMM Passenger Up-Pipe & EGR Delete Kit w/intake
SEGULEROriginal price $226.15 - Original price $226.15Original price$226.15$226.15 - $226.15Current price $226.15| /Material: Aluminum alloy, Stainless steel. Installation Type : Bolt-On Pressure Tested TIG Welds Guaranteed not to Leak. High performance bellow...
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Seguler 5 Position Switch 2011-2016 Chevy Duramax LML
SEGULEROriginal price $64.26 - Original price $64.26Original price$64.26$64.26 - $64.26Current price $64.26| /Aluminum control knob with raised texture has a good grip and durability. 5-position selector switch designed to meet various driving requiremen...
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Seguler 5 Position Switch for 2006-2010 Chevy Duramax LBZ/LMM
SEGULEROriginal price $62.64 - Original price $62.64Original price$62.64$62.64 - $62.64Current price $62.64| /Aluminum control knob with raised texture has a good grip and durability. 5-position selector switch designed to meet various driving requirements...
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Seguler 4" DPF/EGR/CCV Delete All-in-One Kit for 2007.5-2010 6.6L Duramax LMM
SEGULEROriginal price $1,830.99 - Original price $1,830.99Original price$1,830.99$1,830.99 - $1,830.99Current price $1,830.99| /Exhaust material: T-409 stainless steel. Tuner: Mini Maxx V2 Delete Tuner. 4.0″ Downpipe-back DPF Delete Exhaust system. Eliminate soot from e...
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Seguler 2007.5-2010 6.6L Chevy GMC LMM Duramax Passenger Up Pipe & EGR Valve Cooler Delete Kit
SEGULEROriginal price $169.38 - Original price $169.38Original price$169.38$169.38 - $169.38Current price $169.38| /Material: Stainless steel,Aluminum alloy. Eliminates soot build-up and clogged EGR Valves. High performance bellow,Add horsepower. High performa...
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Seguler 2011-2015 6.6L Duramax LML 4" DPF & CAT Delete Pipe & EGR Cooler Delete Kit
SEGULEROriginal price $299.01 - Original price $299.01Original price$299.01$299.01 - $299.01Current price $299.01| /Material: T-409 stainless steel. 4" pipe for DPF and CAT removal. Eliminates soot build-up and clogged EGR Valves. This 4" race pipe allows for...
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Seguler 5" DPF Delete downpipe-back exhaust for 2007.5-2010 6.6L Duramax LMM
SEGULEROriginal price $649.00 - Original price $649.00Original price$649.00$649.00 - $649.00Current price $649.00| /Exhaust material: stainless steel T-409 5″ Downpipe-back DPF Delete pipe. Maximum flow for competition applications. No bungs for a more efficie...
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Seguler Up-Pipe & 3" Downpipe Exhaust & CCV Reroute Kit for 2004.5-2010 6.6L Duramax
SEGULEROriginal price $375.77 - Original price $375.77Original price$375.77$375.77 - $375.77Current price $375.77| /Material: Stainless Steel,Aluminum alloy. Downpipe:Inlet/Outlet Sizes: 3"OD / 3"OD,Up-Pipe Diameter: 3.0". Up-Pipes: 120-inch wall, 2-inch OD. F...
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Sehuler 4" Diesel LML DPF & CAT Delete Pipe & EGR Valve Cooler Delete Kit for 2015.5-2016 Chevy/GMC Duramax
SEGULEROriginal price $299.44 - Original price $299.44Original price$299.44$299.44 - $299.44Current price $299.44| /Material: stainless steel T-409 & billet aluminum DPF and CAT removal Thickness: 4" pipe Original style hangers for easy installation Maximu...
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For 2011-2015 6.6L Chevy Duramax Diesel 4inch DPF Delete Pipe Exhaust
SEGULEROriginal price $234.89 - Original price $234.89Original price$234.89$234.89 - $234.89Current price $234.89| /Exhaust material: stainless steel T-409. 4" pipe for DPF and CAT removal. Maximizing Smoothest High Exhaust Air Flow Rate This 4" race pipe...
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2001-2004 Chevy GMC Duramax LB7 5-Position SOTF Switch | Seguler
SEGULEROriginal price $65.00 - Original price $65.00Original price$65.00$65.00 - $65.00Current price $65.00| /High-quality components with crisp detents, built for rugged truck environments. No need to pull over, shut off the engine, or plug in a tuner to...
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Seguler 4" DPF Delete downpipe-back exhaust for 2007.5-2010 6.6L Duramax LMM
SEGULEROriginal price $599.00 - Original price $599.00Original price$599.00$599.00 - $599.00Current price $599.00| /Exhaust material: stainless steel T-409 4″ Downpipe-back DPF Delete pipe. Maximum flow for competition applications. No bungs for a more efficie...
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4" DPF/EGR/DEF/CCV Delete All-in-One Kit for 2011-2015 6.6L Duramax LML
SEGULEROriginal price $1,441.27 - Original price $1,441.27Original price$1,441.27$1,441.27 - $1,441.27Current price $1,441.27| /Exhaust material: T-409 stainless steel. Tuner: Mini Maxx V2 Delete Tuner. Helps eliminate oil smoke accumulation and blockage of the EGR valve....
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Seguler CCV ReRoute & EGR Cooler Delete Kit for 2011-2016 6.6L Chevy Duramax LML
SEGULEROriginal price $152.87 - Original price $152.87Original price$152.87$152.87 - $152.87Current price $152.87| /Material: Stainless steel & billet aluminum. Coolant temperatures run cooler. Pressure Tested TIG Welds Guaranteed not to Leak. Eliminates soo...
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Seguler 5" DPF/EGR/CCV Delete All-in-One Kit for 2007.5-2010 6.6L Duramax LMM
SEGULEROriginal price $1,880.99 - Original price $1,880.99Original price$1,880.99$1,880.99 - $1,880.99Current price $1,880.99| /Exhaust material: T-409 stainless steel. Tuner: Mini Maxx V2 Delete Tuner. 5.0″ Downpipe-back DPF Delete Exhaust system. Not running through E...
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4" DPF/DEF/EGR/CCV Delete All-in-One Kit for 2015.5-2016 Chevy/GMC
SEGULEROriginal price $1,473.26 - Original price $1,473.26Original price$1,473.26$1,473.26 - $1,473.26Current price $1,473.26| /Exhaust material: T-409 stainless steel. Tuner: Mini Maxx V2 Delete Tuner. Free-flowing exhaust system for more power and better fuel economy. ...
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Seguler 4" DPF & CAT DPF/CCV/EGR Delete Kit for 2011-2015 6.6L Chevy/GMC Duramax Diesel LML
SEGULEROriginal price $383.00 - Original price $383.00Original price$383.00$383.00 - $383.00Current price $383.00| /Exhaust material: stainless steel T-409 & billet aluminum 4" pipe for DPF and CAT removal Original style hangers for easy installation Cool...
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Seguler 4" DPF pipe & 3.5" Downpipe & EGR Cooler Delete kit for 2017-2022 6.6L Duramax
SEGULEROriginal price $701.22 - Original price $701.22Original price$701.22$701.22 - $701.22Current price $701.22| /Material: T409 Stainless steel,Aluminum Alloy. DPF Pipe: 4" inlet, Downpipe: 3.5" inlet. 20% better flow than the factory pipe. Improved combustio...
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Seguler 2011-2015 6.6L Chevy Silverado GMC Duramax 4" DPF Delete Pipe & EGR Delete Kit
SEGULEROriginal price $298.35 - Original price $298.35Original price$298.35$298.35 - $298.35Current price $298.35| /Material: Stainless steel & billet aluminum. 4" pipe for DPF and CAT removal. Original style hangers for easy installation. This 4" race ...
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Let customers speak for us
from 102 reviewsVery happy with procuct ( received as described) Delivery time and sales were excellent.
Fit perfect no more vacuum leaks
Works like it should
Worked great! Fit my 5.3 LS perfectly
Parts were a perfect fit
Fit perfect no problems
Great product, service, and price. I would highly recommend them.
My Seguler Folding tire step
Fast , dependable service. Only issue is it would be cool if you sent short bolts for block off plates. The factory bolts are way too long to reuse . But overall great products. Thanks again ! Kenny down in ga!
Seguler 2009-2019 6.7L Ram Cummins Coolant Bypass Hose Barb Adapter Leak Repair Kit
Usps lost 1st order. Segular resent a replacement. Appears to be a perfect fit for my 1985 small block GM. I wouldn't be afraid to order from SEGULAR again. Great customer service!
Seguler 2009-2019 6.7L Ram Cummins Coolant Bypass Barb Adapter Leak Repair Kit
Seguler 2010+ Cummins Stage 2 ISX 15 CM2250 CM2350 EGR Delete Kit
Worked as should
For 2014-2019 3.0L Dodge Ram 1500 EcoDiesel EGR Valve & Cooler Delete Kit