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Think in terms of replacement frequency, not Power
I don't think there is anyone who can perceive the increase in inhalation efficiency by 0.5ps at Peak with SEROW in the product description.
I'm more of a wash and reuse kind of guy, but it's a lot more work than I thought it would be.
According to the official procedure, wash with Cleaner→ wash with mild detergent→ dry for a day→ apply Oil→ wait 6 hours and when Oil settles, you can drive.
Almost two days if you follow it exactly? If I wash on Saturday morning, I won't make it in time for Touring on Sunday.
If you're the kind of person who changes filters once or twice a year, OEM replacement would be better.
I guess it's for people who want to go as fast as possible in an hour-long Race to change filters in a month, which is often run in Course.
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Improved intake efficiency
I bought it to customize the intake system together with the exhaust system customization (exhaust pipe=Tadao, exhaust system=YOSHIMURA).
I could clearly feel the power up from the latter half of 6000 rpm.
The OEM Air Filter had been used for 13,000 km and had accumulated dirt, which may have been a factor.
The exhaust Custom was performed immediately after delivery of the new car, and the After Fire was reduced from the OEMFilter. I did not notice any change in the intake/exhaust sound.
I am satisfied with the Large change because it is cheaper than other companies' products, it can be cleaned and reused, and it is a ZETA product.
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