Q40 MotorsportsEnter Garage
Log inMEMBER PRICING

Find parts for your vehicle

Start with what you know.All parts
Saved vehicles
Vehicle details

No additional reviewed details

Ready to see available parts

No additional reviewed details are available for this selection. Add make, model or year to refine the results. Check each product’s application before ordering.

Choose make

Choices use the other selected filters. You can also enter a value directly.

Home / Exhaust / Catback / Flowmaster 01-06 SUB/AVAL/Yukon XL American Thunder DOS SS Exhaust System
Flowmaster 01-06 SUB/AVAL/Yukon XL American Thunder DOS SS Exhaust SystemRepresentative image
Appearance and included parts may differ. Image availability does not confirm fitment or availability.
Flowmaster

Flowmaster 01-06 SUB/AVAL/Yukon XL American Thunder DOS SS Exhaust System

PART 817342CATEGORY Catback
$1,171.95
MSRP $1,318.95You save $147.00
$1,171.95
1

Product information

Manufacturer information. Check the part number and installation requirements for your vehicle.

Supplier details checked 2026-09-23 · Test catalog

Product description

2001-2006 Chevrolet Suburban, Avalanche and GMC Yukon XL 1500 with 5.3L engine. Stainless Steel - Aggressive to moderate sound

Flowmaster American Thunder Cat-back Exhaust System

Features

Includes Hangers and Hardware for an Easy Installation

Moderate Exterior Exhaust Note with Mild Interior Tone

Dual 4.00-inch Polished 304 Stainless Steel Tips

Mandrel-bent 16-gauge Stainless Steel Tubing

Connects After Factory Catalytic Converter

Super 50 Series Performance Muffler

Includes Specially Tuned Resonator

Uses the Factory Hanger Locations

Performance Look of Duals

Lifetime Limited Warranty

Manufacturer notes

Does Not Fit with Auto-Leveling Option.

Supplier category
Exhaust, Mufflers & Tips
Supplier subcategory
Catback
UPC / barcode
700042024896
Units per product
1
Supplier Proposition 65 status
Y
Supplier EPA status
N/A
Air freight prohibited
No
Not CARB approved
No
CARB acknowledgement required
Yes
Freight delivery required
No
Powersports product
No
More manufacturer information

Other product descriptions

Flowmaster 01-06 SUB/AVAL/Yukon XL American Thunder DOS SS Exhaust System

0106 SUBAVALYKN XL AMT DOS 409S

SYS 01-06 SUB/AVAL/Y

About the manufacturer

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.

Additional manufacturer information

SYS 01-06 SU

Explore the 3D garage

Chevrolet Corvette C8 · Subaru WRX VA · Mazda Miata NA · Ford Mustang S197 · BMW 3 Series E46 · Honda S2000 AP1 · BMW M3 E30 · Honda Civic 11th generation · Audi S4 B5 · Ford Mustang S550 · BMW M3 E46 · Chevrolet Corvette C6 · Chevrolet Camaro 5th generation · BMW M3 E36 · Chevrolet Corvette C7 · Integra 3rd gen · Integra 2nd gen · Illustrative previews

Enter Garage