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The goal of performance exhaust headers is mainly to decrease flow resistance (back pressure), and to increase the volumetric efficiency of an engine, resulting in a gain in power output. The processes occurring can be explained by the gas laws , specifically the ideal gas law and the combined gas law .
All Silverado and Sierra 1500 models received a revised bumper and shortened front fascia for the 2009 model year, and extended and crew cab models equipped with the Vortec 5300 V8 received a new six-speed 6L80 automatic transmission. The Vortec 6200 V8 was made available for Silverado LT/LTZ and Sierra SLE/SLT models.
A header is a manifold specifically designed for performance. [1] During design, engineers create a manifold without regard to weight or cost but instead for optimal flow of the exhaust gases. This design results in a header that is more efficient at scavenging the exhaust from the cylinders. Headers are generally circular steel tubing with ...
Quicker start-up with less smoke: easier and faster combustion affects smoke emissions, especially on the long term Better cold start: fuel ignites more easily Less engine knock and noise: as the fuel is quick to ignite, it also burns longer, which allows the pressure to rise more smoothly in the chamber
First-generation Chevrolet Silverado 2500HD (2001–02 Regular Cab) The GMT800 Silverado/Sierra 1500 and 2500 pickup trucks were released in August 1998 as 1999 models. The "classic" light-duty GMT400 C/K trucks continued to be produced for the first two years alongside the new models, and the Heavy-Duty GMT400 pickups (alongside the GMT400 SUVs) were continued until 2000, with the new GMT800 ...
An email’s full headers include info about how it was routed and delivered and the true sender of the email. View the full headers to find out where an email was delayed or if the real sender disguised their email address. View the full header of an email. 1. Click an email to open it. 2. Click the More drop-down in the top menu. 3.