Just go with the bigger outlet for more flow. The 1" is more convenient for certain oem setups that have a 1" adapter. If you have blow through MAF, place the bypass valve far away from MAF housing preferably before intercooler to reduce driveability issues. Do you not have to bypass air at idle with a SC? Tial has a spring for SC setups and it opens at low vacuum.
Last edited by thangcu35; 06-11-2015 at 11:32 AM.
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