MBRP S60360409 5" T409 Stainless Filter-Back | 2011-2019 LML/L5P

11-19 GM 6.6L Duramax 5" DPF Back MBRP Stainless Exhaust

MBRP S60360409 5-Inch T409 Stainless Filter-Back Exhaust - 2011-2019 LML/L5P Duramax

$614.99

Part Number: S60360409
Est. Ship Time: Usually Ships By Next Business Day

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The MBRP S60360409 is a 5-inch T409 stainless steel filter-back exhaust system for 2011-2019 Chevrolet Silverado and GMC Sierra 2500HD and 3500HD trucks with the 6.6L Duramax LML or L5P engine. Built from 16-gauge T409 stainless steel that handles repeated salt, moisture, and road grime exposure better than aluminized steel, this single side exit system starts at the DPF outlet and carries a lifetime warranty on the stainless components. A 6-inch OD tip is included. Factory DPF and all emissions equipment remain in place. Fits crew cab and extended cab pickups. Not designed for cab-and-chassis models.

Best Choice For
2011-2019 LML/L5P crew cab or extended cab pickup owners who want a 5-inch filter-back with a lifetime warranty, T409 stainless steel, and a 6-inch OD tip included - the stronger long-term fit for road salt and wet climate driving compared to the aluminized S60360AL.

Buy this if...

Your 2011-2019 LML or L5P crew cab or extended cab pickup needs a 5-inch filter-back with lifetime warranty and a tip included.
You drive in snow-belt, coastal, or road salt conditions where T409 stainless handles repeated moisture and road chemical exposure better than aluminized steel.

Do not choose this if...

You have a cab-and-chassis model - this system does not fit cab-and-chassis configurations.
You are in a dry climate where aluminized steel performs well and a budget-focused price is the priority - choose S60360AL.
You want a 4-inch system - see S6032304 (T304, lifetime, mirror tip) or S6032AL (aluminized, 3-year).

Verify before ordering...

Confirm your truck is a 2011-2019 LML or L5P crew cab or extended cab pickup - not a cab-and-chassis.

S60360409 vs S60360AL

Both are 5-inch single side filter-back systems for the same 2011-2019 LML/L5P trucks. The S60360409 uses T409 stainless, includes a 6-inch OD tip, and carries a lifetime warranty. The S60360AL uses aluminized steel, does not include a tip, and carries a 3-year warranty. T409 stainless is better suited to repeated salt, moisture, and road grime exposure compared to aluminized steel.

Choose S60360AL for a budget-focused price in dry or moderate climates when adding your own tip. Choose S60360409 for a lifetime warranty, included tip, and stronger corrosion resistance in wet or road salt conditions.

Spec	S60360409	S60360AL
Best for	Lifetime warranty, salt/wet climates, tip included	Budget-focused 5-inch, dry/moderate climates
Material	16-gauge T409 stainless steel	Aluminized steel
Tip included	Yes - 6-inch OD	No - sold separately
Warranty	Lifetime	3-year
Fitment	2011-2019 LML/L5P crew cab / ext cab	2011-2019 LML/L5P crew cab / ext cab

S60360409 Specs

Part Number	S60360409
Fitment	2011-2019 Silverado 2500HD/3500HD and Sierra 2500HD/3500HD - 6.6L Duramax LML/L5P - All Crew Cab and Extended Cab pickups
System type	Filter-back (DPF-back) - factory DPF and emissions equipment remain in place
Diameter	5-inch
Material	16-gauge T409 stainless steel
Exit	Single side exit
Tip included	Yes - 6-inch OD
Muffler included	Yes
Hardware included	Yes - all clamps and hardware
Series	XP Series / Armor Plus
Warranty	Lifetime on T409 stainless components
Tuner required	No
Cab restriction	Not designed for cab-and-chassis models

If these checks match, the S60360409 is the correct 5-inch T409 stainless filter-back for your 2011-2019 LML or L5P pickup, with a lifetime warranty and 6-inch OD tip included.

Have a 2007.5-2010 LMM Duramax instead? The MBRP S60300AL is the closest LMM option - 5-inch aluminized single side DPF-back. There is no LMM stainless 5-inch equivalent in this lineup. View the S60300AL for 2007.5-2010 LMM trucks.

Avoid These Common Mistakes

Ordering for a cab-and-chassis truck: Crew cab and extended cab pickups only.
Expecting T304 stainless appearance: The S60360409 uses T409 stainless, which has a different surface finish than T304. T409 does not have a mirror-polished look. T304 with a mirror tip is used on the S6032304 (4-inch). Both carry lifetime warranties - the distinction is finish, diameter, and material grade.
Expecting a 4-inch system: This is a 5-inch exhaust. For a 4-inch stainless lifetime warranty option, see S6032304.
Ordering for an LMM truck: The S60360409 fits 2011-2019 LML and L5P pickups. LMM trucks (2007.5-2010) use a different system.

Before You Order

2011-2019 LML or L5P confirmed
Crew cab or extended cab pickup confirmed - not cab-and-chassis
5-inch T409 stainless with lifetime warranty and included 6-inch tip is the right fit

If these checks match, the S60360409 is the correct 5-inch T409 stainless filter-back for your 2011-2019 LML or L5P pickup.

More MBRP Duramax Resources
Shop all 2011-2016 LML Duramax exhaust systems • Duramax exhaust systems - all generations • Full MBRP catalog at Pure Diesel Power
Performance and sound benefits of MBRP exhaust systems • How to choose the right MBRP exhaust • 4-inch vs 5-inch MBRP exhaust - which is right for your truck

Frequently Asked Questions

Click or tap any question below to open the answer.

What is the difference between S60360409 and S60360AL?

Both are 5-inch single side filter-back systems for the same 2011-2019 LML/L5P trucks. The S60360409 is 16-gauge T409 stainless steel with a lifetime warranty and includes a 6-inch OD tip. The S60360AL is aluminized steel with a 3-year warranty and does not include a tip. T409 stainless is better suited to repeated salt, moisture, and road grime exposure. Choose S60360AL for a budget-focused price in dry or moderate climates when adding your own tip. Choose S60360409 for a lifetime warranty, included tip, and stronger corrosion resistance.

Does the S60360409 fit 2017-2019 L5P Duramax trucks?

Yes. The S60360409 fits 2011-2019 6.6L Duramax Silverado and Sierra 2500HD/3500HD pickups, covering both LML (2011-2016) and L5P (2017-2019) generations in crew cab and extended cab configurations. Cab-and-chassis models are excluded.

What does the MBRP lifetime warranty cover on the S60360409?

MBRP's lifetime warranty on the XP Series T409 stainless covers defects in material and workmanship on the stainless components for the original purchaser when installed on the original vehicle. Surface rust on cut edges, heat discoloration, and damage from accidents, abuse, or misuse are not covered.

Does installing the S60360409 require a tuner?

No. The S60360409 is a filter-back system - it starts after the factory DPF and leaves all factory emissions equipment in place. No tuner or ECM calibration is required for this installation.

Is T409 stainless suitable for winter driving and road salt?

T409 is a ferritic stainless grade used in automotive exhaust systems specifically because it handles high exhaust temperatures and is better suited to repeated salt, moisture, and road grime exposure than aluminized steel. MBRP's lifetime warranty on the T409 XP Series reflects this.

MBRP S60360409 5-Inch T409 Stainless Filter-Back Exhaust - 2011-2019 LML/L5P Duramax

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