Have Questions?
Professional-grade parts used trackside.
Expert help during business hours.
Encrypted checkout & trusted payments.
Orders ship quickly from regional warehouses.
Upgrade your GM 2500 and 3500HD trucks with the aFe Apollo GT Series 4-inch stainless steel cat-back exhaust system. Crafted from high-quality 409 stainless steel, this system features mandrel-bent tubing that ensures maximum strength and durability while providing a smooth flow path for exhaust gases. The high-flow stainless steel muffler delivers a deep, aggressive sound that enhances your vehicle's performance and auditory presence. The 5-inch diameter black stainless steel intercooled clamp-on exhaust tip, riveted with the distinctive aFe POWER logo, adds a stylish finishing touch to your truck*s rear aesthetics. Designed for optimal performance, this exhaust system unleashes all available horsepower and torque, giving you a noticeable boost in power and responsiveness.
Features:
Fitment:
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 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 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 Pro
2024 GMC Sierra 3500 HD SLE
2024 GMC Sierra 3500 HD SLT
Order Processing
All orders are processed and shipped within 24 hours of purchase (excluding weekends and holidays).
Orders placed after 3:00 PM EST may ship the following business day.
Shipping Methods
Customers select their preferred shipping method and speed at checkout.
Shipping times are determined by the carrier and cannot be guaranteed by us.
Tracking information will be provided once your order has shipped.
Shipping Coverage
If your package arrives damaged, please notify the delivery driver immediately and contact the shipping carrier to file a claim.
You must report any missing or damaged items within 14 days of delivery.
After this time, we cannot be held responsible for lost or damaged items.
Return Window
You have 30 days from the date of delivery to request a return.
After 30 days, we are unable to accept returns, exchanges, or refund requests.
Eligibility
Items must be returned in their original condition—unused, unwashed, and with all tags and packaging intact.
Certain products may not be eligible for return (e.g., special-order items, customized products, or perishable goods).
Items that have been altered, installed, or modified cannot be returned.
Return Process
Contact our Customer Support team to request a Return Authorization (RMA) before sending items back.
Once your return is approved, you’ll receive instructions on where to send the product.
Customers are responsible for return shipping costs unless the item was defective or incorrect.
Refunds
Refunds are issued to the original payment method once the returned item has been received and inspected.
Please allow 5–10 business days for the refund to appear on your account.
In some cases, a restocking fee may apply (if applicable, this will be disclosed during your return authorization).
