BTR Gen 3 & 4 Truck Norris NSR Cam

Marsoni

M251S

$179.47

Get it in 3 business days with 1 day shipping. Friday, May 29

BTR Gen 3 & 4 Truck Norris NSR CamBTR Gen III & IV LS Truck Norris No Springs Required Cam No Springs Required More Power Everywhere Specs: 212 22X duration, . 498 . 498 lift, 107 LSA Intake lobe lift @ TDC: 0. 05030 NSR design compatible with factory valve springs Broad torque and power gains across the RPM range Ideal for 19992013 Silverado, Sierra, and other LS powered trucks Built from extensive in house dyno testing and custom lobe design Delivers improved performance over BTR's

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While the shelf looks nice, it didn't work as it should. I anchored and screwed in the black metal bracket pretty well, and it stays perpendicular to the wall and doesn't wiggle or wobble one bit. But as soon as I slide in the wooden shelf, the whole shelf wiggles and settles at an inclined angle. Putting in the two screws down on the shelf did nothing to help with the wobbliness. I may have to glue down certain big decoration in fear of it sliding down the shelf, though that may be a bit overcautious and exaggerating.

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Reviewed in the United States on November 20, 2025