HKS drop ins

WarmAndSCSI

The only thing larger MAF housings on a car that already has 2 ~2.5" housings will gain is a leaner mixture. Without re-scaling your MAF within the ECU ROM, it's just going to lean out your mixture - which will net you some nice gains on the stock tune. Think about the surface area of 2 separate housings. That's massive to begin with - compare that to what has been accomplished with just one MAF and throttle body on the non-HR 350Z.

Even Evo guys are fine with the single ~2.75" MAF which is pre-turbo (non-compressed) until 600 WHP or so. After then, it causes a measurable restriction.

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