Borla 60713 T-304 Stainless Steel Exhaust Extension Pipe for 2020–2026 Chevrolet Silverado and GMC Sierra 2500/3500

EXCEPT Diesel Engine. EXCEPT Dual Rear Wheels. This 3.5" diameter extension pipe is used to adapt the 158.9" Wheelbase BORLA(r) systems to vehicles with Crew Cab with Long Bed (8' 2") 172" Wheelbase. Dimensions 3.5" ID inlet, 3.5" OD outlet, 17.5" long. Includes 1) 3.5" clamp. Built from premium, high-quality austenitic T-304 stainless steel, to give you the absolute best in performance and durability. Precision computer numerical control (CNC) manufacturing ensures an accurate fit. Best of all, BORLA(r) stands behind every extension pipe with a Million-Mile Warranty. Just what you'd expect from the world's most experienced (and most winning) exhaust brand. Extension Pipe 2020-2026 Chev. Silv. 2500/ 3500/ GMC Sierra 2500/ 3500 6.6L V8 (EXCEPT Diesel) AT 2 & 4WD 4 Dr. Crew Cab W/Std. Bed (6' 8") 158.9" WB EXC. Dual Rear Wheels. Add Ext. Pipe 60713 For Crew Cab W/Long Bed (8' 2") 172" WB. Fits Models With Original Equipment (O.E.) Single Tail Pipe ONLY.

• Adapts BORLA(r) 158.9" Wheelbase systems to Crew Cab With Long Bed (8' 2") 172" Wheelbase vehicles
• 3.5" ID inlet, 3.5" OD outlet, 17.5" long. 1) 3.5" clamp included.
• EXCEPT vehicles with Dual Rear Wheels
• EXCEPT Diesel engine

The Borla 60713 exhaust extension pipe adapts compatible Borla exhaust systems designed for a 158.9-inch wheelbase to Chevrolet Silverado and GMC Sierra Crew Cab long-bed models with a 172-inch wheelbase. Designed for vehicles with a 6.6L gasoline V8 engine, this extension pipe is intended for applications with a single original-equipment tailpipe and provides a precise connection between the existing exhaust components.

Manufactured from premium austenitic T-304 stainless steel, the Borla 60713 is engineered for long-term durability, corrosion resistance, and dependable exhaust performance. Computer numerical control manufacturing supports accurate fitment, while the included stainless-steel clamp helps simplify installation. Borla backs this extension pipe with its Million-Mile Warranty, reflecting the brand’s focus on quality and lasting performance.

Key Product Specifications & Technical Data

• Application: 2020–2026 Chevrolet Silverado 2500 HD, Silverado 3500 HD, GMC Sierra 2500 HD, and Sierra 3500 HD
• Engine: 6.6L gasoline V8; not compatible with diesel engines
• Vehicle configuration: Crew Cab with long bed and 172-inch wheelbase
• Exhaust compatibility: Borla systems designed for a 158.9-inch wheelbase
• Inlet: 3.5-inch inside diameter
• Outlet: 3.5-inch outside diameter
• Material: Austenitic T-304 stainless steel
• Tailpipe requirement: Original-equipment single tailpipe only

What's Included

• Borla 60713 exhaust extension pipe
• One 3.5-inch exhaust clamp

Not suitable for diesel-powered vehicles or models equipped with dual rear wheels. The extension is designed for use with compatible Borla exhaust systems and should be verified against the vehicle’s cab, bed, wheelbase, engine, and original tailpipe configuration before installation. Confirmed fitment includes select 2020 Chevrolet Silverado 2500 HD, Silverado 3500 HD, and GMC Sierra 2500 HD applications.

Features:

• Wheelbase adaptation: Converts compatible Borla 158.9-inch wheelbase exhaust systems for Crew Cab long-bed vehicles with a 172-inch wheelbase.
• Premium stainless-steel construction: Austenitic T-304 stainless steel provides strong corrosion resistance and dependable long-term durability.
• Precision fit and installation: CNC-manufactured components support accurate alignment, and one 3.5-inch clamp is included.
• Application-specific performance: Designed for 6.6L gasoline V8 trucks with a single original-equipment tailpipe; excludes diesel engines and dual-rear-wheel models.

Fitments:
2020 Chevrolet Silverado 2500 HD Custom
2020 Chevrolet Silverado 2500 HD High Country
2020 Chevrolet Silverado 2500 HD LT
2020 Chevrolet Silverado 2500 HD LTZ
2020 Chevrolet Silverado 2500 HD WT
2020 Chevrolet Silverado 3500 HD High Country
2020 Chevrolet Silverado 3500 HD LT
2020 Chevrolet Silverado 3500 HD LTZ
2020 Chevrolet Silverado 3500 HD WT
2020 GMC Sierra 2500 HD AT4
2020 GMC Sierra 2500 HD Base
2020 GMC Sierra 2500 HD Denali
2020 GMC Sierra 2500 HD SLE
2020 GMC Sierra 2500 HD SLT
2020 GMC Sierra 3500 HD AT4
2020 GMC Sierra 3500 HD Base
2020 GMC Sierra 3500 HD Denali
2020 GMC Sierra 3500 HD SLE
2020 GMC Sierra 3500 HD SLT
2021 Chevrolet Silverado 2500 HD Custom
2021 Chevrolet Silverado 2500 HD High Country
2021 Chevrolet Silverado 2500 HD LT
2021 Chevrolet Silverado 2500 HD LTZ
2021 Chevrolet Silverado 2500 HD WT
2021 Chevrolet Silverado 3500 HD High Country
2021 Chevrolet Silverado 3500 HD LT
2021 Chevrolet Silverado 3500 HD LTZ
2021 Chevrolet Silverado 3500 HD WT
2021 GMC Sierra 2500 HD AT4
2021 GMC Sierra 2500 HD Base
2021 GMC Sierra 2500 HD Denali
2021 GMC Sierra 2500 HD SLE
2021 GMC Sierra 2500 HD SLT
2021 GMC Sierra 3500 HD AT4
2021 GMC Sierra 3500 HD Base
2021 GMC Sierra 3500 HD Denali
2021 GMC Sierra 3500 HD SLE
2021 GMC Sierra 3500 HD SLT
2022 Chevrolet Silverado 2500 HD Custom
2022 Chevrolet Silverado 2500 HD High Country
2022 Chevrolet Silverado 2500 HD LT
2022 Chevrolet Silverado 2500 HD LTZ
2022 Chevrolet Silverado 2500 HD WT
2022 Chevrolet Silverado 3500 HD High Country
2022 Chevrolet Silverado 3500 HD LT
2022 Chevrolet Silverado 3500 HD LTZ
2022 Chevrolet Silverado 3500 HD WT
2022 GMC Sierra 2500 HD AT4
2022 GMC Sierra 2500 HD Base
2022 GMC Sierra 2500 HD Denali
2022 GMC Sierra 2500 HD SLE
2022 GMC Sierra 2500 HD SLT
2022 GMC Sierra 3500 HD AT4
2022 GMC Sierra 3500 HD Base
2022 GMC Sierra 3500 HD Denali
2022 GMC Sierra 3500 HD SLE
2022 GMC Sierra 3500 HD SLT
2023 Chevrolet Silverado 2500 HD Custom
2023 Chevrolet Silverado 2500 HD High Country
2023 Chevrolet Silverado 2500 HD LT
2023 Chevrolet Silverado 2500 HD LTZ
2023 Chevrolet Silverado 2500 HD WT
2023 Chevrolet Silverado 3500 HD High Country
2023 Chevrolet Silverado 3500 HD LT
2023 Chevrolet Silverado 3500 HD LTZ
2023 Chevrolet Silverado 3500 HD WT
2023 GMC Sierra 2500 HD AT4
2023 GMC Sierra 2500 HD Denali
2023 GMC Sierra 2500 HD Pro
2023 GMC Sierra 2500 HD SLE
2023 GMC Sierra 2500 HD SLT
2023 GMC Sierra 3500 HD AT4
2023 GMC Sierra 3500 HD Denali
2023 GMC Sierra 3500 HD Pro
2023 GMC Sierra 3500 HD SLE
2023 GMC Sierra 3500 HD SLT
2024 Chevrolet Silverado 2500 HD Custom
2024 Chevrolet Silverado 2500 HD High Country
2024 Chevrolet Silverado 2500 HD LT
2024 Chevrolet Silverado 2500 HD LTZ
2024 Chevrolet Silverado 2500 HD WT
2024 Chevrolet Silverado 2500 HD ZR2
2024 Chevrolet Silverado 3500 HD High Country
2024 Chevrolet Silverado 3500 HD LT
2024 Chevrolet Silverado 3500 HD LTZ
2024 Chevrolet Silverado 3500 HD WT
2024 GMC Sierra 2500 HD AT4
2024 GMC Sierra 2500 HD AT4X
2024 GMC Sierra 2500 HD Denali
2024 GMC Sierra 2500 HD Denali Ultimate
2024 GMC Sierra 2500 HD Pro
2024 GMC Sierra 2500 HD SLE
2024 GMC Sierra 2500 HD SLT
2024 GMC Sierra 3500 HD AT4
2024 GMC Sierra 3500 HD Denali
2024 GMC Sierra 3500 HD Denali Ultimate
2024 GMC Sierra 3500 HD Pro
2024 GMC Sierra 3500 HD SLE
2024 GMC Sierra 3500 HD SLT
2025 Chevrolet Silverado 2500 HD Custom
2025 Chevrolet Silverado 2500 HD High Country
2025 Chevrolet Silverado 2500 HD LT
2025 Chevrolet Silverado 2500 HD LTZ
2025 Chevrolet Silverado 2500 HD WT
2025 Chevrolet Silverado 2500 HD ZR2
2025 Chevrolet Silverado 3500 HD High Country
2025 Chevrolet Silverado 3500 HD LT
2025 Chevrolet Silverado 3500 HD LTZ
2025 Chevrolet Silverado 3500 HD WT
2025 GMC Sierra 2500 HD AT4
2025 GMC Sierra 2500 HD AT4X
2025 GMC Sierra 2500 HD Denali
2025 GMC Sierra 2500 HD Denali Ultimate
2025 GMC Sierra 2500 HD Pro
2025 GMC Sierra 2500 HD SLE
2025 GMC Sierra 2500 HD SLT
2025 GMC Sierra 3500 HD AT4
2025 GMC Sierra 3500 HD Denali
2025 GMC Sierra 3500 HD Denali Ultimate
2025 GMC Sierra 3500 HD Pro
2025 GMC Sierra 3500 HD SLE
2025 GMC Sierra 3500 HD SLT

Air Freight Prohibited: false
Not Carb Approved: true
Carb Acknowledgement Required: true
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Regular Stock: t
Units Per Sku: 1