Menu
Your Cart

2004.5-2006 LLY Duramax Exhaust Systems

Exhaust Systems for the 2004.5-2005+ LLY Duramax

*Please note: Some 5 inch and dual exhaust systems DO NOT work with a factory spare tire installed. Please contact the exhaust manufacturer before purchasing to verify fitment.

Brand: AP Exhaust Technologies Part Number: 2548
Keep your 2001-2007 GM 6.6L Duramax as quiet as it came from the factory with the AP Exhaust 2548 Challenge Series Replacement Muffler. This muffler features a patented Single Cartridge Muffler design along with a 100% aluminized steel construction for minimal back-pressure and maximum sound control..
$128.89

Brand: AP Exhaust Technologies Part Number: 38960
The AP Exhaust 38960 Replacement Intermediate Pipe is a quality 100% aluminized replacement exhaust pipe for your 2001-2007 GM 6.6L Duramax (133" Wheelbase) truck. AP Exhaust makes sure all brackets, flanges, and shielding are in their original locations.Note: The OE exhaust system was a welded asse..
$67.74

Brand: AP Exhaust Technologies Part Number: 48681
If you're looking for a quality replacement intermediate pipe with OE fit for your 2001-2007 GM 6.6L Duramax (143.5" Wheelbase), turn to the AP Exhaust 48681 Replacement Intermediate Pipe. AP Exhaust makes sure all brackets, flanges, and shielding are in their original locations and constructs their..
$150.07

Brand: AP Exhaust Technologies Part Number: 48682
Get excellent corrosion resistance and an OE fit for the exhaust on your 2001-2007 GM 6.6L Duramax (153" Wheelbase) with the AP Exhaust 48682 Replacement Intermediate Pipe. AP Exhaust constructs their pipes from 100% aluminized steel and make sure all brackets, flanges, and shielding are in their or..
$140.02

Brand: AP Exhaust Technologies Part Number: 58527
When it comes time to replace the intermediate pipe on your 2001-2007 GM 6.6L Duramax (157.5" Wheelbase), use high-quality components like the AP Exhaust 48668 Replacement Intermediate Pipe. AP Exhaust constructs their pipes from 100% aluminized steel and make sure all brackets, flanges, and shieldi..
$127.31

Brand: AP Exhaust Technologies Part Number: 64824
The AP Exhaust 64824 Replacement Tail pipe is modeled after the stock pipe on your 2001-2007 GM 6.6L Duramax, featuring the necessary brackets, flanges, and shielding for an OE fit and appearance. AP Exhaust uses 100% aluminized heavy 14 and 16-gauge steel piping to construct their tail pipes, then ..
$140.05

Brand: Pacific Performance Engineering Part Number: 116110505
If you have original GM Manifolds and PPE Up-Pipes, this bracket (stay) secures your PPE Down-Pipe and prevents movement. An unsecured Down-Pipe that moves can come in contact and damage the Up-Pipe bellow even under normal driving conditions. This movement can also contribute to metal fatigue and c..
$31.49

Brand: Pacific Performance Engineering Part Number: 116111100
PPE’s Manifold and Up-Pipes are designed to maximize power and flow characteristics. The Up-Pipe bellows are high-flow, internally sleeved, and aircraft-grade 304 stainless steel with an increased inner diameter.The entire Manifold and Up-Pipe exhaust system are designed to lower exhaust gas tempera..
$899.99

Brand: Pacific Performance Engineering Part Number: 116111400
50 States Emissions Legal (E.O. D-701-34)PPE High-Flow Manifolds are made from cast, high-sil moly. The PPE Up-Pipe bellows are internally-sleeved, made from aircraft-grade 304 stainless steel, and designed with increased inner diameter for higher flow. The entire Manifold and Up-Pipe exhaust system..
$1,121.39

Brand: AFE Part Number: 49-04034
The aFe ATLAS turbo down-pipe is engineered to outflow and outperform the restrictive, OE down-pipe on your 2004-2010 Chevy Silverado or GMC Sierra 2500HD/3500HD with the Duramax V8 6.6L turbo diesel. The 3" mandrel-bent steel tubing offers smoother transition bends for increased airflow, delivering..
$172.70

Brand: MBRP Part Number: GMCA424
This MBRP downpipe eliminates restriction compared to the factory downpipe. This downpipe is made of mandrel bent aluminized steel construction which provides a smoother flow from the turbo which results in lower EGT's, increased performance, throatier sound and faster turbo spool-up. Downpipe ..
$189.99

Brand: Pacific Performance Engineering Part Number: 116120005
PPE has taken OEM replacement to a new level. All PPE OEM Up-Pipes allow 53% greater flow than stock. PPE OEM Up-Pipes are a direct bolt-on to your factory manifolds. Unlike factory parts, PPE OEM Up-Pipe are manufactured from 11-gauge 304 stainless steel and includes our superior PPE 304 stainless ..
Starting From $149.99

Brand: Pacific Performance Engineering Part Number: 116120010
Part 116120918 for year range 2011-2016 on Backorder with No ETA  **Updated on 10/28/2022**All PPE OEM Up-Pipes create a 53% greater flow than stock. The PPE OEM Up-Pipes are a direct bolt-on to your factory manifolds. Unlike factory parts, PPE OEM Up-Pipes are manufactured from 11-gauge 304 s..
Starting From $149.99

Brand: Dirty Hooker Diesel Part Number: 300-120
DHD's high flow manifold bundle increases exhaust air flow over 55% without any port modifications. Additional gains can be found in port matching and port blending. Our manifolds are cast from the same high Silca Iron that's become standard in the high flow manifold market. Included in the high flo..
$795.00

Brand: Expandit Part Number: DUR350MRP
01-07 Chevy/GM 6.6L Duramax Diesel Stock Muffler Delete Pipe Does not fit 08+ LMM Duramax equipped trucks.Quickly and easily straight-pipe your Chevy Duramax to allow your engine to breathe!Simply cut the exhaust as close to your muffler as possible on both sides of the stock muffler, then install t..
$85.25

Brand: AFE Part Number: 49-91002
The aFe Universal fit 409 Stainless Steel Performance Muffler is designed to provide a deep, throaty, powerful sound on acceleration but maintain a smooth sound at idle. This muffler is constructed of brushed finished 409 stainless steel and uses a straight through perforated core with heat resistan..
$156.20

Brand: Diamond Eye Part Number: 341007
Diamond Eye Aluminized 5" Tailpipe. This is the piece that exits from the vehicle. If you need the 1st tailpipe piece, see below. Fits 2001 - 2007 GM 6.6L Duramax Diesel Diamond Eye part number: 341007IMPORTANT NOTE: Due to varying laws and regulations, most Diamond Eye exhaust systems & component..
$74.84

01-07 GM 6.6L Duramax Magnaflow 5" Downpipe Back Aluminized Exhaust
Backordered
Brand: Magnaflow Part Number: 18982
Backordered til January 25th   **Updated on 11/18/2022**V8 6.6L (DIESEL); Silverado 2500HD/3500 5.0in. Turbo-Back; SINGLE PASSENGER SIDE REAR EXIT; NO MUFFLER, NO TIPMaterial: Aluminized SteelTubing O.D. Size: 5in.System Type: Turbo-BackTIP O.D. Size:TIP Quantity:Single/Dual: SingleE..
$667.00

Brand: Pacific Performance Engineering Part Number: 117000500
RThe PPE 117000500 3" Stainless Steel Downpipe for your 2004.5-2010 GM 6.6L Duramax allows you to removed your crushed oval stock downpipe and replace it with a smooth round, long lasting 304 stainless steel down pipe. Spiral wrapped with titanium woven thread for superior heat that's held in place ..
$149.99

Brand: MBRP Part Number: GM8424
3" Down Pipe Chevy/ GMC 2004.5-2010 (LLY/ LBZ/ LMM) While the search for more power for your LLY, LBZ or LMM Duramax powered vehicle usually leads you down the path of exhaust, intake and tuner, one item that is often overlooked is the factory restrictive turbo direct pipe. MBRP has addressed this ..
$189.99

Brand: MBRP Part Number: MDA30
Muffler Delete Pipe 4" Inlet /Outlet 30" OverallUniversal There are always those purists who push the envelope in their pursuit of maximum performance. It is for these true enthusiasts that we build what is one of the most extensive line-ups of muffler deletes in the industry. Extreme performance an..
$64.99

Brand: MBRP Part Number: S60200AL
How easy is it to install the industries only “true” 5 inch performance exhaust system? Thanks to the design crew at MBRPinc, whether you go with the Down Pipe Back Off Road (which ships complete with a front pipe) or you go with a Cat Back, it will always be bolt on easy. With every MBRPinc exhaust..
$629.99

Brand: Diamond Eye Part Number: 341006
Diamond Eye Aluminized 5" Tailpipe. This is the piece that connects to the last tailpipe piece. If you need the 2nd tailpipe piece (exiting piece), see below. Fits 2001 - 2007 GM 6.6L Duramax Diesel Diamond Eye part number: 341006IMPORTANT NOTE: Due to varying laws and regulations, most Diamond Ey..
$93.08

Brand: Grand Rock Part Number: VB-384G
The Grand Rock V-Band Clamp VB-384G is a replacement for the factory clamp your 2001-2015 GM 6.6L Duramax. This clamp joins the bottom of your downpipe, to the front-pipe in your exhaust system. The factory clamp is exposed to extreme conditions from constant heat cycles, and being exposed to t..
$22.20

Part Number: NIC 16219
2 13/16" - Length 7/8" - Height 5/16" - Hanger Holes 1 1/2" - Spacing between holes Part number: 16219 (16219-1, 16219-10, BR560-001)..
$6.49

Brand: MBRP Part Number: GMS9401
Stainless Steel 4 Inch Front Pipe with Flange for 2001-2004 Chevy/GM 6.6L Duramax DieselMBRP: GMS9401..
$209.99

Brand: MBRP Part Number: S60200SLM
4-6 Week Lead Time! Contact to Confirm!2001-2007 Chevy/GMC Duramax 2500/35005" Down Pipe Back, Off Road - no muffler, Single Side, T409 Fits all bed & cab configurations. Features 409SS construction. MBRP: S60200SLM Picture for representation only. *NOTE: If installing on regular cab truck ..
$629.99

Brand: BD Power Part Number: 1041460
BD “Full Bore” 01-07 Chevy/GM Duramax LB7,LLY, & LBZ Exhaust Manifold Improve exhaust flow, reduce exhaust gas temperature (EGT) and realize greater power gains with the new “Full Bore” driver’s side exhaust manifold for the ’01-’07 GM Duramax.You may not know it, but the factory driver’s side mani..
$184.95

Brand: Diamond Eye Part Number: 361045
361045 - FOR 2001, 2002, 2003, 2004, 2005, 2006 & EARLY 2007 - CHEVY/GMC 6.6L DURAMAX DIESEL 2500/3500 - 4" T409 STEEL - PERFORMANCE DIESEL EXHAUST - 4 BOLT ADAPTER PLATE This adapter plate has a 4-bolt welded flange on one side and a 4 inch diameter slip-fit connection on the opposite side. It is ..
$67.48

Brand: Pypes Exhaust Part Number: DTD4507
04.5-07 DURAMAX TURBO DIRECT For 2004, this is a mid year motor change.FITS 2004-1/2 to 2010BOTH ENDS OF PIPE ARE ROUND Pypes part #DTD4507..
$146.41

Brand: Diamond Eye Part Number: 321052
Replacement section for second section of tailpipe only on 01-07 6.6L Duramax. The first section is part # 321051 Image for Representation only, may not be actual part. IMPORTANT NOTE: Due to varying laws and regulations, most Diamond Eye exhaust systems & components cannot ship to California. Ta..
$65.64

Brand: MBRP Part Number: GMAL401
Aluminized Steel 4 Inch Front Pipe with Flange for 2001-2004 Chevy/GM 6.6L Duramax DieselTHIS PRODUCT CANNOT SHIP TO CALIFORNIA MBRP: GMAL401..
$184.99

Brand: Diamond Eye Part Number: 321056
Diamond Eye Performance has developed a Turbo Direct pipe for the ’04- '010 Chevy/GM LLY, LBZ, & LMM Diesel Exhaust systems.   It features CNC machined end-forms for precise fit, mandrel bent tubing for smoother flow from the turbo and is covered with special thermal resistant wrapping to help reduc..
$208.21

Brand: Pacific Performance Engineering Part Number: 116111xxx
**Discontinued** Please see below links for updated product pages01-16 Duramax Compound Turbos01-04 LB7 Duramax02-04 LB7 Duramax - California Emissions04.5-05 LLY Duramax06-07 LBZ Duramax07.5-10 LMM Duramax11-16 LML Duramax17-21 L5P Duramax..
$0.00

Brand: FloPro Part Number: 10100
2004.5-2010, 6.6L, 2500/3500, 3" Turbo Direct Pipe. Competition Exhaust PipesSimple bolt on installation for competition use Built using heavy duty steel in 3” diameter Utilizes OE style connections to ensure a proper fitment Flo Pro part number:  10100..
$182.16

Brand: Diamond Eye Part Number: 4001
4001 - FOR 2001, 2002, 2003, 2004, 2005, 2006 & EARLY 2007 - CHEVY/GMC 6.6L DURAMAX DIESEL 2500/3500 - PERFORMANCE DIESEL EXHAUST - HIGH-TEMPERATURE 4 BOLT GASKET - USED FOR 321045 OR 361045IMPORTANT NOTE: Due to varying laws and regulations, most Diamond Eye exhaust systems & components cannot ship..
$10.93

Brand: Diamond Eye Part Number: 321051
Replacement section for first section of tailpipe only on 01-07 6.6L Duramax. The Second section is part # 321052 Image for Representation only, may not be actual part. IMPORTANT NOTE: Due to varying laws and regulations, most Diamond Eye exhaust systems & components cannot ship to California. Ta..
$63.70

Brand: Diamond Eye Part Number: 321046
This is the pipe that is between the downpipe and muffler. 4" Aluminized Diamond Eye part number: 321046IMPORTANT NOTE: Due to varying laws and regulations, most Diamond Eye exhaust systems & components cannot ship to California. Take a look at our product selection for alternatives from other..
$80.19

Brand: Diamond Eye Part Number: 361001
DISCONTINUED    361001 - FOR 2001, 2002, 2003, 2004, 2005, 2006 & EARLY 2007 - CHEVY/GMC 6.6L DURAMAX DIESEL 2500/3500 - 4" T409 STAINLESS STEEL FRONT PIPEIMPORTANT NOTE: Due to varying laws and regulations, most Diamond Eye exhaust systems..
$0.00

Brand: MBRP Part Number: S6004AL
DISCONTINUEDMBRP 2001+ Chevy/GMC  Duramax Aluminized 4" Exhaust System Aluminized Installer Series, Turbo Back with front pipe and cat-delete pipe. Includes 304 stainless polished exhaust tip! The Duramax has a refined toughness to it. MBRP Inc. Has left the refined part to General Motors, ..
$0.00

<