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  • Flowmaster American Thunder Cat-back Exhaust System fits 2001-2006 Chevrolet Avalanche 1500 / Suburban 1500 / GMC Yukon XL 1500
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Flowmaster American Thunder Cat-back Exhaust System fits 2001-2006 Chevrolet Avalanche 1500 / Suburban 1500 / GMC Yukon XL...
Flowmaster American Thunder Cat-back Exhaust System fits 2001-2006 Chevrolet Avalanche 1500 / Suburban 1500 / GMC Yukon XL...
Flowmaster American Thunder Cat-back Exhaust System fits 2001-2006 Chevrolet Avalanche 1500 / Suburban 1500 / GMC Yukon XL...
Flowmaster American Thunder Cat-back Exhaust System fits 2001-2006 Chevrolet Avalanche 1500 / Suburban 1500 / GMC Yukon XL...
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Load image into Gallery viewer, Flowmaster American Thunder Cat-back Exhaust System fits 2001-2006 Chevrolet Avalanche 1500 / Suburban 1500 / GMC Yukon XL...
Load image into Gallery viewer, Flowmaster American Thunder Cat-back Exhaust System fits 2001-2006 Chevrolet Avalanche 1500 / Suburban 1500 / GMC Yukon XL...
Load image into Gallery viewer, Flowmaster American Thunder Cat-back Exhaust System fits 2001-2006 Chevrolet Avalanche 1500 / Suburban 1500 / GMC Yukon XL...

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Flowmaster American Thunder Cat-back Exhaust System fits 2001-2006 Chevrolet Avalanche 1500 / Suburban 1500 / GMC Yukon XL 1500

⚠️ Please verify fitment before purchasing. Check the fitment chart below or use the Year/Make/Model tool to confirm this part fits your vehicle.

⚠️ Verify fitment before purchasing. Check the fitment chart below or click the 3 lines in the top left menu, select Home, then use the Year/Make/Model guide.

Flowmaster
817342
In stock
$1,237.95 USD $1,144.99 USD
$1,144.99 USD
Flowmaster American Thunder Cat-back Exhaust System fits 2001-2006 Chevrolet Avalanche 1500 / Suburban 1500 / GMC Yukon XL 1500
Description
This American Thunder system fits 2001-2006 GM Suburban, Avalanche and Yukon XL 1500 SUV's and increases the horsepower, torque and mileage of these popular trucks. The exhaust system is constructed from 16-gauge mandrel-bent stainless steel and has a flanged resonator assembly flowing into a specially tuned resonator and a Super 50 Series performance muffler producing a mild to moderate interior tone and a deep exterior sound. The dual 2.50-inch tailpipes exit out the side of the vehicle behind the rear tires and are finished off with large pair of 4.00-inch polished 304 stainless tips. All necessary parts and hardware are included for a great fitting installation and is covered by Limited Lifetime Warranty.


Specifications:

Brand Flowmaster
California Proposition 65 Yes
California Proposition 65 Chemical Name Nickel (Metallic)
California Proposition 65 Chemical Name Chromium (hexavalent compounds)
CARB (California) Compliant Yes
Catalytic Converter Included No
2874 0
Category Exhaust
3728 Flat Band
1882 Yes
Emission Code 5
Exhaust Series American Thunder
11205 Silver
9874 Clamp-On
9876 Angled
1162 4.00
9877 Angle Cut
1163 Polished
9881 No
10104 7.5
1164 304 Stainless Steel
1161 2
9878 No
10980 Round
9875 Double Wall
9870 Dual Out Side
200 Natural
353 No
3390 Performance
4364 Yes
Heat Shield Included No
Inlet Diameter 3.00
596 Flanged
9871 2.50
92 Yes
9884 5.00
1892 17.25
4372 409 Stainless Steel
4373 Oval
9882 Black High-Temperature Paint Finish
4367 No
4368 No
Muffler Included Yes
9962 Slip-Fit
4365 3.00
4366 3.13
9963 Slip-Fit
4375 2
Muffler Part Number Kit Only
4374 1
Muffler Series Super 50 Series
1174 Chambered
part type Exhaust System
3530 409 Stainless Steel
Product Type Exhaust System
Resonator (Front) Body Height 4.00
Resonator (Front) Body Length 12.25
Resonator (Front) Body Width 8.00
Resonator (Front) Type Chambered
Resonator (Rear) Body Height 8.00
Resonator (Rear) Body Length 12.25
Resonator (Rear) Body Width 4.00
Resonator (Rear) Type Chambered
Sound Level Aggressive / Moderate
4377 No
Sub Category Exhaust and Tail Pipes
4369 2.50
4376 2
Tail Pipe Quantity Dual
4370 No
26 Cat-Back
6014 No
2126 Not Applicable
Warning California Proposition 65
Pipe Color Silver
Drive 2WD
Drive 4WD
9885 10.00
Brand Flowmaster
California Proposition 65 Yes
California Proposition 65 Chemical Name Nickel (Metallic)
California Proposition 65 Chemical Name Chromium (hexavalent compounds)
CARB (California) Compliant Yes
Catalytic Converter Included No
2874 0
Category Exhaust
3728 Flat Band
1882 Yes
Emission Code 5
Exhaust Series American Thunder
11205 Silver
9874 Clamp-On
9876 Angled
1162 4.00
9877 Angle Cut
1163 Polished
9881 No
10104 7.5
1164 304 Stainless Steel
1161 2
9878 No
10980 Round
9875 Double Wall
9870 Dual Out Side
200 Natural
353 No
3390 Performance
4364 Yes
Heat Shield Included No
Inlet Diameter 3.00
596 Flanged
9871 2.50
92 Yes
9884 5.00
1892 17.25
4372 409 Stainless Steel
4373 Oval
9882 Black High-Temperature Paint Finish
4367 No
4368 No
Muffler Included Yes
9962 Slip-Fit
4365 3.00
4366 3.13
9963 Slip-Fit
4375 2
Muffler Part Number Kit Only
4374 1
Muffler Series Super 50 Series
1174 Chambered
part type Exhaust System
3530 409 Stainless Steel
Product Type Exhaust System
Resonator (Front) Body Height 4.00
Resonator (Front) Body Length 12.25
Resonator (Front) Body Width 8.00
Resonator (Front) Type Chambered
Resonator (Rear) Body Height 8.00
Resonator (Rear) Body Length 12.25
Resonator (Rear) Body Width 4.00
Resonator (Rear) Type Chambered
Sound Level Aggressive / Moderate
4377 No
Sub Category Exhaust and Tail Pipes
4369 2.50
4376 2
Tail Pipe Quantity Dual
4370 No
26 Cat-Back
6014 No
2126 Not Applicable
Warning California Proposition 65
Pipe Color Silver
Drive 2WD
Drive 4WD
9885 10.00
Description_ABR SYS 01-06 SU
Description_SHO SYS 01-06 SUB/AVAL/Y
Description_INV 01-06 SUB/AVAL/YKN XL AMT DOS 409S
Description_ASC Does Not Fit with Auto-Leveling Option.
Description_DES Flowmaster American Thunder Cat-back Exhaust System
Description_EXT 2001-2006 Chevrolet Suburban, Avalanche and GMC Yukon XL 1500 with 5.3L engine. Stainless Steel - Aggressive to moderate sound
Description_MKT This American Thunder system fits 2001-2006 GM Suburban, Avalanche and Yukon XL 1500 SUV's and increases the horsepower, torque and mileage of these popular trucks. The exhaust system is constructed from 16-gauge mandrel-bent stainless steel and has a flanged resonator assembly flowing into a specially tuned resonator and a Super 50 Series performance muffler producing a mild to moderate interior tone and a deep exterior sound. The dual 2.50-inch tailpipes exit out the side of the vehicle behind the rear tires and are finished off with large pair of 4.00-inch polished 304 stainless tips. All necessary parts and hardware are included for a great fitting installation and is covered by Limited Lifetime Warranty.
Description_FAB Includes Hangers and Hardware for an Easy Installation
Description_FAB Moderate Exterior Exhaust Note with Mild Interior Tone
Description_FAB Dual 4.00-inch Polished 304 Stainless Steel Tips
Description_FAB Mandrel-bent 16-gauge Stainless Steel Tubing
Description_FAB Connects After Factory Catalytic Converter
Description_FAB Super 50 Series Performance Muffler
Description_FAB Includes Specially Tuned Resonator
Description_FAB Uses the Factory Hanger Locations
Description_FAB Performance Look of Duals
Description_FAB Lifetime Limited Warranty
Description_ABR SYS 01-06 SU
Description_SHO SYS 01-06 SUB/AVAL/Y
Description_INV 01-06 SUB/AVAL/YKN XL AMT DOS 409S
Description_ASC Does Not Fit with Auto-Leveling Option.
Description_DES Flowmaster American Thunder Cat-back Exhaust System
Description_EXT 2001-2006 Chevrolet Suburban, Avalanche and GMC Yukon XL 1500 with 5.3L engine. Stainless Steel - Aggressive to moderate sound
Description_MKT This American Thunder system fits 2001-2006 GM Suburban, Avalanche and Yukon XL 1500 SUV's and increases the horsepower, torque and mileage of these popular trucks. The exhaust system is constructed from 16-gauge mandrel-bent stainless steel and has a flanged resonator assembly flowing into a specially tuned resonator and a Super 50 Series performance muffler producing a mild to moderate interior tone and a deep exterior sound. The dual 2.50-inch tailpipes exit out the side of the vehicle behind the rear tires and are finished off with large pair of 4.00-inch polished 304 stainless tips. All necessary parts and hardware are included for a great fitting installation and is covered by Limited Lifetime Warranty.
Description_FAB Includes Hangers and Hardware for an Easy Installation
Description_FAB Moderate Exterior Exhaust Note with Mild Interior Tone
Description_FAB Dual 4.00-inch Polished 304 Stainless Steel Tips
Description_FAB Mandrel-bent 16-gauge Stainless Steel Tubing
Description_FAB Connects After Factory Catalytic Converter
Description_FAB Super 50 Series Performance Muffler
Description_FAB Includes Specially Tuned Resonator
Description_FAB Uses the Factory Hanger Locations
Description_FAB Performance Look of Duals
Description_FAB Lifetime Limited Warranty


This Part Fits:

Year Make Model Submodel Notes
2002 Chevrolet Avalanche 1500 Base Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound
2003 Chevrolet Avalanche 1500 Base Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound
2004 Chevrolet Avalanche 1500 Base Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound
2005 Chevrolet Avalanche 1500 Base Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound
2002 Chevrolet Avalanche 1500 North Face Aggressive to moderate sound,Aggressive to moderate sound
2003 Chevrolet Avalanche 1500 North Face Aggressive to moderate sound,Aggressive to moderate sound
2002 Chevrolet Avalanche 1500 On Road Edition Aggressive to moderate sound,Aggressive to moderate sound
2003 Chevrolet Avalanche 1500 On Road Edition Aggressive to moderate sound,Aggressive to moderate sound
2003 Chevrolet Avalanche 1500 WBH Aggressive to moderate sound
2004 Chevrolet Avalanche 1500 Z66 Aggressive to moderate sound,Aggressive to moderate sound
2005 Chevrolet Avalanche 1500 Z66 Aggressive to moderate sound,Aggressive to moderate sound
2002 Chevrolet Avalanche 1500 Z71 Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound
2003 Chevrolet Avalanche 1500 Z71 Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound
2004 Chevrolet Avalanche 1500 Z71 Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound
2005 Chevrolet Avalanche 1500 Z71 Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound
2001 Chevrolet Suburban 1500 LS Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound
2002 Chevrolet Suburban 1500 LS Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound
2003 Chevrolet Suburban 1500 LS Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound
2004 Chevrolet Suburban 1500 LS Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound
2005 Chevrolet Suburban 1500 LS Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound
2006 Chevrolet Suburban 1500 LS Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound
2001 Chevrolet Suburban 1500 LT Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound
2002 Chevrolet Suburban 1500 LT Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound
2003 Chevrolet Suburban 1500 LT Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound
2004 Chevrolet Suburban 1500 LT Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound
2005 Chevrolet Suburban 1500 LT Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound
2006 Chevrolet Suburban 1500 LT Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound
2002 Chevrolet Suburban 1500 Z71 Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound
2003 Chevrolet Suburban 1500 Z71 Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound
2004 Chevrolet Suburban 1500 Z71 Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound
2005 Chevrolet Suburban 1500 Z71 Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound
2006 GMC Yukon XL 1500 SL Aggressive to moderate sound
2001 GMC Yukon XL 1500 SLE Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound
2002 GMC Yukon XL 1500 SLE Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound
2003 GMC Yukon XL 1500 SLE Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound
2004 GMC Yukon XL 1500 SLE Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound
2005 GMC Yukon XL 1500 SLE Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound
2006 GMC Yukon XL 1500 SLE Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound
2001 GMC Yukon XL 1500 SLT Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound
2002 GMC Yukon XL 1500 SLT Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound
2003 GMC Yukon XL 1500 SLT Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound
2004 GMC Yukon XL 1500 SLT Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound
2005 GMC Yukon XL 1500 SLT Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound
2006 GMC Yukon XL 1500 SLT Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound,Aggressive to moderate sound
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