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LIMITED TIME: Take 15% Off Site-Wide with Code: TRUCK15
LIMITED TIME: Take 15% Off Site-Wide with Code: TRUCK15

Duramax Performance Parts — 6.6L LB7-L5P Chevy/GMC HD

Seguler Duramax parts for 2001–2025 Chevy Silverado and GMC Sierra 2500HD/3500HD with the 6.6L LB7, LLY, LBZ, LMM, LML, and L5P engines. EGR deletes, DPF delete pipes, performance tuners, cold air intakes, and turbo-back exhausts. The LML and L5P CP4.2 pump is the weak link — our delete kits reduce backpressure and EGTs before the pump gets stressed. Every kit includes gaskets, block-off plates, and installation instructions. US warehouse stock.

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from 108 reviews

For 2010-Present Stage 2 ISX 15 CM2250 CM2350 EGR Delete Kit

Javier Murillo
For 2010-Present Stage 2 ISX 15 CM2250 CM2350 EGR Delete Kit
Satisfied

Very nice quality

Billy Kinsey
Seguler 2" Adjustable Trailer Hitch 6" Drop/Rise 12,000 lbs GTW with Double Anti-Theft Locking Pins
Seguler 1986-1995 Ford F 150,250&350 truck EGR Simulator/ Block off plate kit

Great product easily to install great quality of finish on block off plate.

Richard LeivasJr Customer
Seguler 1986-1995 Ford F150 F250 F350 Mustang Trucks EGR Simulator Eliminator / Block Off Plate Kit
Easy instal, made a big difference in sound.

Was able to install it pretty quick, looks and feels like good quality, it made a noticeable difference in noise, i bought my ram 2500 with a 5 inch straight pipe. This made it possible to quite the truck down alot without having to buy a whole new exhaust.

Jake Moody
Seguler 5" Muffler 30" Overall Length for Diesel Exhaust Generic
Ecco delete

Everything fit great!

Timothy Green
Seguler For 2014-2019 3.0L Dodge Ram 1500 EcoDiesel EGR Valve & Cooler Delete Kit

Everything fit great!

Timothy Green
Seguler 3" Ecodiesel DPF Delete Pipe & EGR Delete kit for 2014-2018 3.0L Ram
egr delete

Very happy with procuct ( received as described) Delivery time and sales were excellent.

Barney Chappell
Seguler 2011-2023 6.7L Ford Powerstroke Diesel EGR Delete Kit

Fit perfect no more vacuum leaks

Wayne Julien
For 4.8L 5.3L 6.0L LSX Silverado EGR Delete Plug Intake Exhaust Block Off Plate

Works like it should

Roger Rochester
Seguler 2010-Present Stage 2 ISX 15 CM2250 CM2350 EGR Delete Block Off Plate
2001 5.3

Worked great! Fit my 5.3 LS perfectly

Jonathan Barcus
For 5.3L 6.0L LS EGR+EVAP Valve Block Off Plates Kit Purge Solenoid Plug Intake/Exhaust LM7 Generic
Egr

Parts were a perfect fit

Victor Stylc
For 2003-2007 6.0L Ford Powerstroke Diesel EGR Bypass Delete Kit w/Intake Elbow
Excellent

Fit perfect no problems

Bill Millikin
For 4.8L 5.3L 6.0L LSX Silverado EGR Delete Plug Intake Exhaust Block Off Plate
Great product.

Great product, service, and price. I would highly recommend them.

Edward Atkins Jr
Seguler 2007.5-2012 6.7L Dodge Ram Cummins Diesel Products 4" Stainless Steel Exhaust DPF Race Pipe Generic

My Seguler Folding tire step

Delbert Davis
Seguler Folding Heavy Duty Tire Step Adjustable Step
Egr delete kit

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!

Kenny Gregory
For 2010-Present Stage 2 ISX 15 CM2250 CM2350 EGR Delete Kit