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 ...

Here's a question from a reader about adding power to a GM TBI engine. The principle is pretty much the same with any speed-density fuel-injection system, so check out engine guru Jeff Smith's answer ...

Everyone can use more horsepower. One example of a simple upgrade that provides more horsepower is the Powerpackage kit from Turbo City for ’87-’95 GM throttle-body fuel-injected GM engines.

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 ...

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 ...