2001 impala 3.4L v6

i just added a magnaflow exhaust system, i've also been looking into cool air intake. what is the best brand to go with my size engine?

go here ( see link ) they have the best, it is north america impala owners assoc
http://www.naioa.com/v2/

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It's not that the Naioa V2 FWI is "the best". It's performance is comparable to any other CAI's on the market, it just happens to be the least expensive.

any CAI's you find, will give you near exact same performance wise results, it's up to you to decide which fits your needs/wants the best.

But if your interested in saving some cash, then the Naioa V2 FWI would be the choice I would suggest to you.