Agreed.... as I said in my first paragraph, fitting larger diameter pipes / headers will move the powerband and / or lose the torque, which will be very noticable with the 2.5 l engine.
But as you well know, most people who fit these "upgrades" do it for the soundtrack more than anything else...... er that would be me then??
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2001 Boxster S (triple black). Sleeping easier with LN Engineering/Flat 6 IMS upgrade, low temp thermostat & underspeed pulley.
2001 MV Agusta F4.
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