I agree with you. It seems most posts address the regular Z, yet the nismo probably has fitment issues for intakes, exhaust, etc. Can the nismo exhaust be modified at all? Are HFC's enough, both for performance and sound? The Cobb guys that tuned my STI said many are going back to the stock box for air intake and just a K&N type filter. This could be a great thread for me. Thanks, in advance.
