GM Authority

Some 2021 Chevy Colorado Duramax Diesel Units To Get Throttle Body Replacement

GM has issued a Special Coverage notification for certain 2021 Chevy Colorado pickup units describing a coverage extension related to a throttle body issue in trucks motivated by the Duramax ...
CCJ

Silver Bullet Throttle Body Spacer Adds Power

This 6061-T6 billet aluminum Silver Bullet throttle-body spacer from aFe Power is said to add 8hp to 2014 5.3L GM V8s and up to 12 lbs./ft. of torque. The serrated/helix design lengthens the intake ...
Hot Rod

LS2 Intake Manifold Porting - LS2 Stealth Mods

Though LS1-equipped '04 Goats were certainly stout, the bar was raised even further when GM rolled out the evolutionary Gen IV LS2 engine for the '05-'06 models. In addition to a host of improvements, ...
GM Authority

Some 2021 GMC Canyon Duramax Diesel Units To Get Throttle Body Replacement

Certain units of the 2021 GMC Canyon pickup equipped with the Duramax turbodiesel 2.8L I4 LWN engine are included in a new Special Coverage bulletin The General has just issued, related to a throttle ...