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Twisted Steel Headers & Y-Pipe; Street Series

GM Silverado/Sierra 1500 14-17 V8-5.3L
Part Number: 48-44003-YC
$1,701.50

MSRP: $2,075.00

Details:

Twisted Steel Headers Features:

  • 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

Y-Pipe Features:

  • Constructed out of mandrel-bent stainless steel tubing
  • True 2-to-1 mitered merge collector eliminates dead zone for improved flow
  • Mandrel-bent 3" stainless steel tubing for better flow and added power
  • Incorporates high-Flow, 400 cell catalytic converters for better flow

Test Results:

  • Added an astounding +18horsepower and +26lbs. x ft. of torque as verified by our in house dyno
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Overview


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.

Note: This system is not currently CARB exempt and is not available for sale in California or for use on any vehicle registered with the California Department of Motor Vehicle.

Applications

Vehicle Applications

Year Make Model SubModel Engine Fuel
2014-2018Chevrolet Silverado 1500 V8 5.3L Gas
2014-2018GMC Sierra 1500 V8 5.3L Gas
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