an aftermarket intake will help the engine breath a bit better but the full bennifit is seen in the upper rpm range. the stock airbox only has a small hole in the front for air to flow through. you should not have an issue with the MAF sensor unless the filter is over oiled.
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2000 Chevy Blazer ZR2
Performance Mods: Numerous
Suspension Mods: Some, but not enough
Exterior Mods: Just Right
1987 Buick Turbo T Dark Red
Low 11 sec sleeper

.030 4.1 block, PT6262E, & other odds and ends....
My Cardomain