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So I recently decided to soup up my Civic a little bit. I'm lookin at making some easy/minor hp gain changes to her, and I'm not sure what I could do or what would be the most beneficial. I'm lookin to spend about $500-$600 to start out with. I'm concerned more with aesthetics than horsepower, but at the same time I'd like to get a little bang for my buck (I can't expect much, being that it's an automatic).

Background info: 2005 Honda Civic LX Special Edition

Please let me know where I can purchase the suggested parts as well, and thanks for the ideas!

 
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Stage 1 cam would be the only thing you could get for that price that would actually make a difference. For aesthetics, look around the forum at build threads and see what you like.

 
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Try to start out with a CAI and a nice exhaust system! Magnaflow exhaust systems are great! Look on ebay to buy stuff cheaply! Buy from a trusted seller and a good ebay company!