Title: Almost perfect (for me)
Review: I have a 2004 Land Cruiser (purchased new) and wanted to increase the performance and "hopefully" gas mileage. The increase performance is notable which is great however the noise coming into cabin is quite a bit more than I expected when I put my foot into it. The sound is fun at first but after a while, I would prefer to have both the quiet cabin and extra performance. I haven't tracked the mileage accurate enough to comment as driving conditions and temperature continues to change.
Is this product review negative?