Free Shipping On Orders Over $100 ×

Twisted Steel Headers & Y-Pipe for the 09-13 GM Silverado/Sierra 1500 V8 (GMT900)

An image of a GM Truck


aFe is proud to introduce all new Headers & Y-Pipe  products for 2009-2013 GM Silverado/Sierra 1500 and SUV’s (GMT900) with V8 engines. aFe now offers performance Twisted Steel Headers and a high-flowing Mach Force XP Y-pipe for value added performance for your GM truck. When combining these two parts, the system in testing on our in-house dyno added +21 horsepower and +26 lbs. x ft. torque.

An image of the GM headers

 (Twisted Steel Headers  P/N 48-44001)

An image of the y-pipe for the GM truck

(Y-Pipe w/ mitered merge collector P/N 49-44050)

Twisted Steel Headers

The performance short-tube headers are constructed of 1-5/8” 16 gauge mandrel-bent tubing for strength and durability. A 4-to-1 formed collector is used on the header to decrease turbulence and increase exhaust velocity for maximum performance. This massive torque monster y-pipe utilizes high-flow 49 State Legal catalytic convertors which keep the system a true bolt-on package free of check engine lights.



Formed Collectors:

4-to-1 formed collectors decrease turbulence and increases exhaust velocity. The result is increased horsepower, torque and improved throttle response.


Heavy Duty Flanges:

3/8" thick 1-piece flanges prevent warpage to ensure a leak-free seal over the life of the vehicle.


Factory Mounting Locations:

These headers retain your stock catalytic converters and are a direct bolt-on installation which requires no cutting or drilling to provide a hassle-free installation.


True Merge Collector:

True 2 to 1 mitered merge collector eliminates dead space that can cause turbulence and hinder flow that formed collectors are prone to produce. 

  3" - 3.5" Y-Pipe Stainless Steel Exhaust System w/ Cats


Heavy Duty Construction:

Mandrel-bent 3" piping transitions into 3-1/2" piping for better durability.


Leak-Free Seal:

High quality OE style flanges and band clamps are used for a complete 360 degree sealing surface.

Twisted Steel Headers 



Interested in upgrading to a combo pack of these two parts?  Check out P/N 45-00102. Not only do you get the full performance package you also benefit from the cost savings.  The combo package will also fit 2009-2013 GM Gas SUV's V8-(GMT900).

An image of the headers and y-pipe for GM trucks

Twisted Steel Header also fits the following applications:

2002-2013 GM Silverado/Sierra 1500

Gas SUV's V8 with (GMT800/900) chassis.

For further information and pricing  click here or contact our Power Professionals at 888-901-7693.

Leave a Reply
Free aFe Power Calendar
close sign

Please wait...

Item has been added to your shopping cart

Keep Shopping

View Shopping Cart

Item has been removed from your shopping cart

Keep Shopping

View Shopping Cart