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2001 GMC Sierra 1500
1
0
Price Match Guarantee
60-Day Returns
Lifetime Replacement
Price Match Guarantee
60-Day Returns
Lifetime Replacement
Guaranteed to Fit2001 GMC Sierra 1500 Change Vehicle

Flowmaster®
2001 GMC Sierra 1500 - Exhaust System, 5.3/4.8L Engine

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$651.95
$805.00Save: $153.05(19%)
Manufacturer #17428
Guaranteed to Fit2001 GMC Sierra 1500 Change Vehicle
Qty:
1

Your Vehicle Fit Details

Vehicle Name
Submodel
Engine
Fitment Information
2001 GMC Sierra 1500
SLT
8 Cyl 4.8L
78.0 in. Bed, Fleetside, 4-Door, Extended Cab Pickup, Short Bed
2001 GMC Sierra 1500
SLE
8 Cyl 5.3L
78.0 in. Bed, Fleetside, 4-Door, Extended Cab Pickup, Short Bed
2001 GMC Sierra 1500
SL
8 Cyl 4.8L
78.0 in. Bed, Fleetside, 4-Door, Extended Cab Pickup, Short Bed
2001 GMC Sierra 1500
SLT
8 Cyl 5.3L
78.0 in. Bed, Stepside, 4-Door, Extended Cab Pickup, Short Bed
2001 GMC Sierra 1500
SLE
8 Cyl 4.8L
78.0 in. Bed, Stepside, 4-Door, Extended Cab Pickup, Short Bed
2001 GMC Sierra 1500
SL
8 Cyl 5.3L
78.0 in. Bed, Stepside, 4-Door, Extended Cab Pickup, Short Bed

Highlights

Part:
Exhaust System
Brand:
Flowmaster
Notes:
Includes Super 40 Series Muffler
Material:
Made of Aluminized Steel
Series:
American Thunder Series
System Type:
Cat-Back
Quantity Sold:
Kit
Warranty:
3-year Flowmaster limited warranty
Prop 65 Warning:

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Exit Location:
Exit: After Rear Tire (Split Rear or Split Side)
Main Piping Diameter:
2.5 in. Main Pipe
Product Fit:
Direct Fit
Recommended Use:
OE Upgrade
Why Buy:
Aggressive Tone Chambered Muffler
Fitnotes:
78.0 in. Bed, Fleetside, 4-Door, Extended Cab Pickup, Short Bed,78.0 in. Bed, Stepside, 4-Door, Extended Cab Pickup, Short Bed

Vehicle Fitment Information

Vehicle Name
Submodel
Engine
Fitment Information
1999-2003 Chevrolet Silverado 1500
Base
8 Cyl 5.3L
78.0 in. Bed, Stepside, 3-Door, Extended Cab Pickup, Short Bed
1999-2003 Chevrolet Silverado 1500
Base
8 Cyl 4.8L
78.0 in. Bed, Fleetside, 2-Door, Extended Cab Pickup, Short Bed
1999-2003 GMC Sierra 1500
SL
8 Cyl 5.3L
78.0 in. Bed, Stepside, 3-Door, Extended Cab Pickup, Short Bed
1999-2003 GMC Sierra 1500
SL
8 Cyl 4.8L
78.0 in. Bed, Fleetside, 2-Door, Extended Cab Pickup, Short Bed
1999-2003 GMC Sierra 1500
SLT
8 Cyl 4.8L
78.0 in. Bed, Stepside, 3-Door, Extended Cab Pickup, Short Bed
Page 1 of 6 | Showing 1 - 5 of 29 results

Product Information

FLOWMASTER AMERICAN THUNDER AGGRESSIVE TONE CHAMBERED MUFFLER EXHAUST SYSTEMS

Flowmaster’s American Thunder aggressive tone chambered muffler exhaust systems include mandrel-bent steel tubing and a chambered muffler that’s fine-tuned to deliver improved torque, horsepower and gas mileage, plus the moderately aggressive rumble you crave for your street machine. Flowmaster, known as ‘the exhaust technology company,’ is a leading manufacturer of performance exhaust systems, respected for their design, innovation and engineering.

  • MADE IN USA
  • Offered in aluminized or stainless steel
  • Chambered muffler fine-tunes exhaust tone to moderately aggressive rumble
  • Mandrel-bent tubing allows for continuous airflow
  • Quick and easy installation
  • Direct fit by vehicle year, make and model
  • Proven to improve torque, throttle response, horsepower and fuel economy by rigorous dyno testing
Need help?Call our product expert1-866-529-0412
Chat with us
Mondays - Sundays7am - 11pm ET | 4am - 8pm PT
Warranty Policy
Right parts, guaranteed. If you find any defects, let us know within 60 days and we’ll take care of it. Check out our Warranty Policy for more details.
Shipping Policy
We ship fast so you can get on the road that much faster. Check out our Shipping Policy for more details.
Easy Return Policy
We’re only happy if you’re happy. If you’re not entirely satisfied with your order, you may be entitled to a refund. Check out our Return Policy for more details.

Product Q&A

0
Is there an estimated increase in hp and torque?Kaden R.Feb 01, 2022
Best Answer:Hi Kaden, I'm glad to assist you. Flowmaster claims that this will give 5-10% more horsepower and a few extra miles per gallon. I hope this helps, and if you're interested in this exhaust system, you can click on the link below for direct ordering to take advantage of our ongoing sale and limited stocks. Happy shopping. <a href="https://www.carparts.com/exhaust-system/flowmaster/f1317428?can=CPAE1047" target="_blank">https://www.carparts.com/exhaust-system/flowmaster/f1317428?can=CPAE1047</a>
Arnel E.STAFFFeb 01, 2022
0
Will this fit a Reg. Cab 8' bed 2wd? If not what kit will?Sean B.Dec 05, 2021
Best Answer:Hi Sean, I'm glad to help you out. This part is incompatible with your vehicle specifications. Tell us the vehicle information so we can help you look for the correct part. Should you need further assistance, feel free to call us at 1-866-529-0412. I hope this helps. Happy shopping.
Aldrin P.STAFFDec 05, 2021
0
Does this work for a 2006 chevy Silverado crewcab withthe 6.0l?Tony L.May 09, 2021
Best Answer:Hi Tony, I'm glad to help you out. This item doesn't fit the 2006 Silverado crew cab with a 6.0L engine. For the exhaust system that fits, click this link: <a href="https://www.carparts.com/details/Chevrolet/Silverado_1500/Corsa/Exhaust_System/2006/LT/8_Cyl_6-dot-0L/COR24240.html?can=CPAP3648" target="_blank">https://www.carparts.com/details/Chevrolet/Silverado_1500/Corsa/Exhaust_System/2006/LT/8_Cyl_6-dot-0L/COR24240.html?can=CPAP3648</a> I hope this helps. Happy shopping.
Aldrin P.STAFFMay 09, 2021
0
is there any welding involved?P I.Jul 31, 2020
Best Answer:Hi Agustin, For the correct year and model, this is a direct bolt-on fit.
Arnel E.STAFFJul 31, 2020

Customer Reviews

American Thunder Series Cat-Back Exhaust System, Made Of Aluminized Steel
Great Exhaust Upgrade
Great product, easy installation with basic hand tools.
Purchased on Aug 14, 2014
American Thunder Series Cat-Back Exhaust System, Made Of Aluminized Steel
Great System
Sounds great and looks great. Every truck should have that Flowmaster sound!!
Purchased on May 23, 2008
American Thunder Series Cat-Back Exhaust System, Made Of Aluminized Steel
easy assembly
Looked for a long time for the right price on this exhaust system.Went on with ease cause im not a rockett scientist but have some mech. ability.Looks great,and has a distinc but not too loud rumble.Would recommend any flowmaster system too anyone looking too upgrade their factory system
Purchased on Jan 03, 2008