AEM 21 737WR Cold Intake System Review

Thanks to my knowledge gained in practice working on automotive engines, I knew the value of swapping out the restrictive stock air filter for an aftermarket one. The AEM 21 737WR Cold Intake System was an easy install and transformed my daily drive into a more responsive and fuel-efficient experience .The increased air flow promotes better engine health and the sleek design adds some under the hood eye candy. The only minor drawback was the higher than average price..

Pros: I bought this air intake for my 2016 Fiesta ST. I was very excited as the power and torque gains from the dyno tests looked significant and the black and red trim complemented my car's color scheme perfectly. It looks fantastic and installation was quick and relatively easy, including all the necessary hardware and instructions. Everything was great except for one small detail that was not mentioned on either Revain or the AEM website. Which leads to downsides and a 1 star rating. Cons…