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    • Force Ii Cat-Back Exhaust System Fits 2011-2018 Chevrolet Silverado/Gmc Sierra 1500 Trucks With 6.2L Engine Flowmaster
    • Force Ii Cat-Back Exhaust System Fits 2011-2018 Chevrolet Silverado/Gmc Sierra 1500 Trucks With 6.2L Engine Flowmaster
    • Force Ii Cat-Back Exhaust System Fits 2011-2018 Chevrolet Silverado/Gmc Sierra 1500 Trucks With 6.2L Engine Flowmaster
    • Force Ii Cat-Back Exhaust System Fits 2011-2018 Chevrolet Silverado/Gmc Sierra 1500 Trucks With 6.2L Engine Flowmaster
    • Force Ii Cat-Back Exhaust System Fits 2011-2018 Chevrolet Silverado/Gmc Sierra 1500 Trucks With 6.2L Engine Flowmaster
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    Sale!

    Flowmaster Fits 2011-2018 Chevrolet Silverado/GMC Sierra 1500 trucks with 6.2L engine. 817603

    Vendor: Flowmaster
    SKU: BDXN_817603
    Save $135
    Sale Price $1,075.95 Regular Price $1,210.95
    Fast Fulfillment: In-stock parts typically ship same day or next business day.
    Free Shipping on Orders Over $99 | Excludes freight shipments
    Professional, Enthusiast-Driven Customer Support
    International Shipping Available - Contact Us!
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    This Force II® Cat-back stainless steel exhaust system is designed for 2011-2018 Chevrolet Silverado and GMC Sierra 1500 trucks with the 6.2L engine. Features include large 3.50-inch mandrel-bent tubing flowing into a Flowmaster 50 Series Big Block™ muffler for a muscular exterior sound, while the built-in Helmholtz chamber helps control the interior resonance. The system uses the factory hanger locations for an easy installation and is finished off with a highly polished 4.00-inch 304 stainless steel tip embossed with the Flowmaster® logo. This bolt-on system delivers noticeable performance gains while offering moderate interior and exterior sound levels and is covered by our Lifetime Limited Warranty.


    Flowmaster Fits 2011-2018 Chevrolet Silverado/GMC Sierra 1500 trucks with 6.2L engine. 817603


    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 Force II
    11205 Silver
    9874 Welded
    9876 Angled
    1162 4.00
    9877 Rolled Edge Angle Cut
    1163 Polished
    9881 No
    10104 10.00
    1164 304 Stainless Steel
    1161 1
    9878 No
    10980 Round
    9875 Single Wall
    9870 Single Out Side
    200 Natural
    353 No
    3390 Performance
    4364 Yes
    Heat Shield Included No
    Inlet Diameter 3.50
    596 Clamp-On
    9871 3.50
    92 No
    4371 12.00
    9884 5.00
    1892 22.00
    4372 409 Stainless Steel
    4373 Oval
    9882 Black High-Temperature Paint Finish
    4367 No
    4368 No
    Muffler Included Yes
    9962 Slip-Fit
    4365 3.50
    4366 3.50
    9963 Slip-Fit
    4375 1
    Muffler Part Number Kit Only
    4374 1
    Muffler Series 50 Series Big Block
    1174 Chambered
    part type Exhaust System
    3530 409 Stainless Steel
    Product Type Exhaust System
    Sound Level Moderate
    4377 No
    Sub Category Exhaust and Tail Pipes
    4369 3.50
    4376 1
    Tail Pipe Quantity Single
    4370 No
    26 Cat-Back
    6014 No
    2126 Not Applicable
    Warning California Proposition 65
    Pipe Color Silver
    Drive 4WD
    Drive 2WD
    9885 12.00
    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 Force II
    11205 Silver
    9874 Welded
    9876 Angled
    1162 4.00
    9877 Rolled Edge Angle Cut
    1163 Polished
    9881 No
    10104 10.00
    1164 304 Stainless Steel
    1161 1
    9878 No
    10980 Round
    9875 Single Wall
    9870 Single Out Side
    200 Natural
    353 No
    3390 Performance
    4364 Yes
    Heat Shield Included No
    Inlet Diameter 3.50
    596 Clamp-On
    9871 3.50
    92 No
    4371 12.00
    9884 5.00
    1892 22.00
    4372 409 Stainless Steel
    4373 Oval
    9882 Black High-Temperature Paint Finish
    4367 No
    4368 No
    Muffler Included Yes
    9962 Slip-Fit
    4365 3.50
    4366 3.50
    9963 Slip-Fit
    4375 1
    Muffler Part Number Kit Only
    4374 1
    Muffler Series 50 Series Big Block
    1174 Chambered
    part type Exhaust System
    3530 409 Stainless Steel
    Product Type Exhaust System
    Sound Level Moderate
    4377 No
    Sub Category Exhaust and Tail Pipes
    4369 3.50
    4376 1
    Tail Pipe Quantity Single
    4370 No
    26 Cat-Back
    6014 No
    2126 Not Applicable
    Warning California Proposition 65
    Pipe Color Silver
    Drive 4WD
    Drive 2WD
    9885 12.00
    Description_ABR SYS 11-18 GM
    Description_SHO SYS 11-18 GM 1500 14
    Description_INV 11-18 GM 1500 143" WB 6.2L FII SOS
    Description_ASC Fits 2011-2018 Chevrolet Silverado/GMC Sierra 1500 trucks with 6.2L engine. Crew Cab/Short bed & Extra Cab/Standard bed models (143-inch wheelbase.)
    Description_DES Flowmaster Force II Cat-back Exhaust System
    Description_EXT Fits 2011-2018 Chevrolet Silverado/GMC Sierra 1500 trucks with 6.2L engine.
    Description_MKT This Force II® Cat-back stainless steel exhaust system is designed for 2011-2018 Chevrolet Silverado and GMC Sierra 1500 trucks with the 6.2L engine. Features include large 3.50-inch mandrel-bent tubing flowing into a Flowmaster 50 Series Big Block™ muffler for a muscular exterior sound, while the built-in Helmholtz chamber helps control the interior resonance. The system uses the factory hanger locations for an easy installation and is finished off with a highly polished 4.00-inch 304 stainless steel tip embossed with the Flowmaster® logo. This bolt-on system delivers noticeable performance gains while offering moderate interior and exterior sound levels and is covered by our Lifetime Limited Warranty.
    Description_FAB Dyno Tuned For Maximum Performance
    Description_FAB 50 Series Big Block Performance Muffler
    Description_FAB Large 3.50-inch Mandrel-bent Tubing
    Description_FAB Uses the Factory Hanger Locations
    Description_FAB Stainless Steel Construction
    Description_FAB Lifetime Limited Warranty
    Description_FAB Delta Flow Technology
    Description_FAB Flowmaster Quality
    Description_ABR SYS 11-18 GM
    Description_SHO SYS 11-18 GM 1500 14
    Description_INV 11-18 GM 1500 143" WB 6.2L FII SOS
    Description_ASC Fits 2011-2018 Chevrolet Silverado/GMC Sierra 1500 trucks with 6.2L engine. Crew Cab/Short bed & Extra Cab/Standard bed models (143-inch wheelbase.)
    Description_DES Flowmaster Force II Cat-back Exhaust System
    Description_EXT Fits 2011-2018 Chevrolet Silverado/GMC Sierra 1500 trucks with 6.2L engine.
    Description_MKT This Force II® Cat-back stainless steel exhaust system is designed for 2011-2018 Chevrolet Silverado and GMC Sierra 1500 trucks with the 6.2L engine. Features include large 3.50-inch mandrel-bent tubing flowing into a Flowmaster 50 Series Big Block™ muffler for a muscular exterior sound, while the built-in Helmholtz chamber helps control the interior resonance. The system uses the factory hanger locations for an easy installation and is finished off with a highly polished 4.00-inch 304 stainless steel tip embossed with the Flowmaster® logo. This bolt-on system delivers noticeable performance gains while offering moderate interior and exterior sound levels and is covered by our Lifetime Limited Warranty.
    Description_FAB Dyno Tuned For Maximum Performance
    Description_FAB 50 Series Big Block Performance Muffler
    Description_FAB Large 3.50-inch Mandrel-bent Tubing
    Description_FAB Uses the Factory Hanger Locations
    Description_FAB Stainless Steel Construction
    Description_FAB Lifetime Limited Warranty
    Description_FAB Delta Flow Technology
    Description_FAB Flowmaster Quality


    This Part Fits:

    Year Make Model Submodel Notes
    2014 Chevrolet Silverado 1500 High Country
    2015 Chevrolet Silverado 1500 High Country
    2016 Chevrolet Silverado 1500 High Country
    2017 Chevrolet Silverado 1500 High Country
    2018 Chevrolet Silverado 1500 High Country
    2011 Chevrolet Silverado 1500 LT
    2012 Chevrolet Silverado 1500 LT
    2013 Chevrolet Silverado 1500 LT
    2011 Chevrolet Silverado 1500 LTZ
    2012 Chevrolet Silverado 1500 LTZ
    2013 Chevrolet Silverado 1500 LTZ
    2014 Chevrolet Silverado 1500 LTZ
    2015 Chevrolet Silverado 1500 LTZ
    2016 Chevrolet Silverado 1500 LTZ
    2017 Chevrolet Silverado 1500 LTZ
    2018 Chevrolet Silverado 1500 LTZ
    2011 GMC Sierra 1500 Denali
    2012 GMC Sierra 1500 Denali
    2013 GMC Sierra 1500 Denali
    2014 GMC Sierra 1500 Denali
    2015 GMC Sierra 1500 Denali
    2016 GMC Sierra 1500 Denali
    2017 GMC Sierra 1500 Denali
    2018 GMC Sierra 1500 Denali
    2011 GMC Sierra 1500 SLE
    2012 GMC Sierra 1500 SLE
    2013 GMC Sierra 1500 SLE
    2011 GMC Sierra 1500 SLT
    2012 GMC Sierra 1500 SLT
    2013 GMC Sierra 1500 SLT
    2014 GMC Sierra 1500 SLT
    2015 GMC Sierra 1500 SLT
    2016 GMC Sierra 1500 SLT
    2017 GMC Sierra 1500 SLT
    2018 GMC Sierra 1500 SLT
    Shipping Policy

    Shipping Policy Last Updated: April 2026

    We're committed to getting your order to you as quickly and transparently as possible. Here's everything you need to know about how we ship.

    Order Cancellations

    Once an order is placed, cancellations are not guaranteed as orders are sent to fulfillment quickly. If you need to cancel, contact us immediately at sales@berryperformancesales.com. If a cancellation is possible, the buyer is responsible for any transaction fees incurred. If the order has already shipped, it cannot be cancelled and must go through our standard return process.

    Processing Time

    In-stock orders are typically processed and shipped within 1–2 business days of receiving payment, unless otherwise noted on the product page. Orders placed on weekends or holidays will be processed on the next business day.

    Shipping Costs

    Shipping costs are calculated at checkout based on the shipping method selected, package weight and dimensions, and destination address. You can review all shipping costs before finalizing your purchase.

    Estimated Delivery Times

    Domestic orders typically arrive within 1–7 business days after shipment, depending on your location and the carrier. Please note that delivery times are estimates and are not guaranteed. Delays due to weather, carrier volume, or other circumstances beyond our control may occur.

    Tracking Information

    Once your order ships, you will receive a confirmation email with tracking information. Use this to monitor your package's progress. If your tracking has not updated within 48 hours of receiving your confirmation email, please contact us and we'll look into it.

    Shipping Address

    Please ensure your shipping address is accurate and complete before placing your order. If you realize an error after ordering, contact us immediately at sales@berryperformancesales.com — we will do our best to make the correction, but changes cannot be guaranteed once an order is in fulfillment. We are not responsible for orders shipped to incorrect or undeliverable addresses due to customer error.

    Please note: We are unable to ship to P.O. Boxes. Please provide a physical delivery address at checkout.

    Lost or Stolen Packages

    If your tracking shows your order as delivered but you have not received it, please take the following steps:

    • Check around your property and with neighbors
    • Confirm the shipping address on your order was correct
    • Contact the carrier directly with your tracking number

    If the issue remains unresolved, contact us at sales@berryperformancesales.com within 5 business days of the marked delivery date. We will work with you and the carrier to investigate. Berry Performance Sales is not responsible for packages confirmed as delivered by the carrier or for packages stolen after delivery.

    Damaged in Transit

    If your order arrives visibly damaged, please refer to our Returns & Refunds policy for instructions on how to report the issue. Carrier damage claims must be reported within 48 hours of delivery.

    International Shipping

    We do ship internationally! Because shipping costs, carrier options, and transit times vary significantly by destination, international orders require a custom quote prior to purchase. To request a shipping quote, contact us at sales@berryperformancesales.com with the following:

    • Your country and full delivery address
    • The item(s) you are interested in ordering

    We will respond with a shipping quote as quickly as possible. Please note that customs duties, import taxes, and any other fees charged upon delivery are the sole responsibility of the recipient and are not included in your shipping quote. We recommend checking with your local customs office before placing your order.

    Off-Road Use Disclaimer

    All products are sold for off-road use only unless otherwise specified. The buyer assumes full responsibility for installation and operation. Berry Performance Sales is not liable for any incidental, indirect, or consequential damages including engine failure, labor charges, or vehicle downtime resulting from the use of any product sold. By placing an order, you acknowledge and accept these terms.

    Questions?

    We're happy to help before, during, or after your purchase. Email: sales@berryperformancesales.com

    Berry Performance Sales reserves the right to update this policy at any time. Changes take effect immediately upon posting. It is the customer's responsibility to review the current policy at the time of purchase.

    Return Policy

    Returns & Refunds Last Updated: April 2026

    We want you to love what you ordered. If something isn't right, here's everything you need to know.

    30-Day Return Window

    You have 30 days from the date of purchase to initiate a return. After this window, we are unable to accept returns. We do not offer exchanges — all approved returns are refunded per the terms below.

    How to Initiate a Return

    To request a return, contact us at sales@berryperformancesales.com with your order number and reason for return. All returns must be approved by our team before any item is shipped back to us. Once your return has been approved, your item must be shipped within 10 days of approval. Items shipped without prior approval or outside this window will be refused and returned to sender.

    Return Conditions

    To be eligible for a return, items must be:

    • Unused and in original condition
    • In original packaging
    • Inclusive of all parts and accessories

    Custom ordered products are non-returnable. If you're unsure whether your item qualifies, contact us before purchasing.

    Once we receive your return, we will inspect the item before processing any refund. We reserve the right to deny or adjust your refund if the item is received in a condition that differs from what was originally shipped — including signs of use, missing parts, or damage that occurred after delivery.

    Fees to Know Upfront

    We believe in being transparent about costs:

    • Restocking Fee: 20% — deducted from all return refunds
    • Return Shipping: Buyer's responsibility on all standard returns
    • Cancellation (Installment/Payment Plan): 7% fee to cover transaction costs
    • Cancellation (Credit Card/PayPal): 3.5% processing fee

    Damaged or Defective Items

    If your order arrives damaged or defective, you must contact us within 48 hours of delivery at sales@berryperformancesales.com. Claims reported outside this window may not be eligible for resolution.

    When contacting us, please include:

    • Your order number
    • A description of the issue
    • Clear photos or video of the damage or defect

    If your item was damaged during shipping, this is handled as a carrier claim separate from our standard return process — we will assist you in filing that claim. Items confirmed to be defective due to a manufacturing or fulfillment error will have return shipping costs covered by Berry Performance Sales.

    Refunds

    Once we receive and inspect your return, refunds are processed within 3–5 business days back to your original payment method. You'll receive a confirmation once it's been issued.

    Questions?

    We're happy to help before, during, or after your purchase. Email: sales@berryperformancesales.com

    Berry Performance Sales reserves the right to update this policy at any time. Changes take effect immediately upon posting. It is the customer's responsibility to review the current policy at the time of purchase.

    Disclaimer

    All products are sold for off-road use only unless otherwise specified. Buyer assumes all responsibility for installation and operation. Seller is not liable for any incidental, indirect, or consequential damages — including engine failure, labor costs, or vehicle downtime — resulting from the use of any product sold.

    By making a purchase from Berry Performance Sales, you acknowledge and agree to abide by the terms and conditions of these Policies.

    For any questions or concerns, please contact us — we’re always happy to help.

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