Personally, I love my AEM. Dyno results typically show AEM with a 10-15% hp edge over competitor's CAIs, and generally a 50-100% hp edge over short rams.
What you pay for: Superior engineering, including: a "tuned" pipe diameter (bigger is not always better), powdercoated finish (looks, longevity, and heat resistance), and a better fit.
IMO, simply a superior product.
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