Dual High Flow Catalytic Converters:
Semi-metallic 400 CPSI catalytic converters are used for maximum flow.
True Merge Collectors:
Eliminates dead space that can cause turbulence and hinder flow that formed collectors are prone to produce.
Leak-Free Seal:
High quality OE style flanges and band clamps are used for a complete 360 degree sealing surface.
Hassle-Free Installation:
The performance header and y-pipe are designed to fit in the stock location incorporating the OE hanger, flange and O2 sensor locations.
Race Disclaimer:
This is a Race Only product that is to be used solely for competition, it cannot be used on vehicles that are operated on public streets, roads or highways. Its use is limited to closed-course and open-course racing that is formally sanctioned by a recognized racing organization. Any other use, including recreational off-road use, could be in violation of local, state and federal laws. To complete the purchase of this item, aFe Power competition acknowledgement/liability release form must be filled out and submitted.
aFe headers are engineered and manufactured in our Corona, California manufacturing facility.
- Constructed out of 16-gauge, 1-3/4" mandrel-bent stainless steel tubing for unrestricted flow
- 4-to-1 mitered merge collectors eliminates flow-block turbulence seen on formed collectors
- Optimized tube lengths improve flow and performance
- 100% hand MIG-welded construction ensures optimal strength and durability
Installation Notes:
Professional installation required.
Fitment & Application:
- 2019 GMC Sierra 1500 LTD V8 5.3L
- 2019 Chevrolet Silverado 1500 LD V8 5.3L
- 2018 GMC Sierra 1500 V8 5.3L
- 2018 Chevrolet Silverado 1500 V8 5.3L
- 2017 GMC Sierra 1500 V8 5.3L
- 2017 Chevrolet Silverado 1500 V8 5.3L
- 2016 GMC Sierra 1500 V8 5.3L
- 2016 Chevrolet Silverado 1500 V8 5.3L
- 2015 GMC Sierra 1500 V8 5.3L
- 2015 Chevrolet Silverado 1500 V8 5.3L
- 2014 GMC Sierra 1500 V8 5.3L
- 2014 Chevrolet Silverado 1500 V8 5.3L
Brand | aFe Power |
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Part Number | AFE-48-44003-YC |
Shipping Method | UPS/FedEx/USPS Ground |
Availability | Possibly special-order. Call or email to check stock. |
California Prop 65 Warning |
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