What is the best Cold Air intake (long tube)?

SS_Firehawk

Stillen G3's, Injens, Takeda has a new one, and Nismo make CAI's. Stillen is the most popular it seems, followed by Injen, then AEM. I chose AEM because it requires no oiling, came in dark grey, and found it at a much lower price than the other options. With the pulley kit I installed at the same time, I picked up and average of 10whp across the board and up to 15 after 6500-7k rpm. WHP difference for the most part will be academic. With the AEM's, it comes with an ETI module which helps the maf sensors read the air flow properly. I run LTH's, HFC and full exhaust. Even without a tune, my car didn't lean out as much as I thought it would, did not seem to pull much timing if any over the headers/cat/full exhaust setup. I thought my AFR's would run way high, but it's around 13.5 with a peak of around 13.8. It may have been because of the ETI module, I'm not totally sure yet. Considering that you have full exhaust and HFC's, which is similar to mine w/o LTH's, I would be ready to put money down on Uprev and tuning if it hasn't been done already

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