Talk:Nissan 370Z Special Edition (Research & Development)/@comment-1915804-20190114084505/@comment-31458611-20190114104508

You'd better wait.

Spending a engine now on exhaust from 1 to 2 would add only 0.9.km/h to total speed, yet would stall a 2 > 3 drivetrain upgrade, which adds 4.4 km/h. Check it here.