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Tag Archives: LSXR Intake

Speed Secrets: LSXR vs. Stock Truck Intake Dyno Test! Which Makes More Power?

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Working with the experts at FAST, it’s time to test the factory 5.3-liter intake manifold against the LSXR intake manifold. If this goes like any of the prior testing, the FAST manifold is going to be a tough one to beat. This is even truer with heavily modified engines, but how well will it work on a milder 5.3-liter engine? ... Read More »

Speed Secrets: FAST Intake Manifolds Short Intake Runner Test

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The LSXR LS3 intake manifold is the result of extensive EFI research and development by Fast, the industry leader in fuel injection aftermarket performance parts. More flow and more power are among the many benefits this incredible intake manifold has to offer, but it doesn’t end there. The really great part about the FAST LSXR LS3 intake is its adjustability ... Read More »

Speed Secrets: What’s So Great About the FAST LSXR Intake?

Speed Secrets: What’s So Great About the FAST LSXR Intake?

When GM designed the LS1 engine, they didn’t give it an intake to do it justice. Thankfully, FAST came up with a solution. Richard Holdener explains the magic behind the FAST LSXR intake in this episode of Speed Secrets. Of all the intake manifolds GM has produced over the years, the LS1, the beginning of arguably the best GM engine ... Read More »