Review on 🚀 Boost Performance with K&N Cold Air Intake Kit: Increase Horsepower & Stay 50-State Legal | 2004 PONTIAC (GTO)57-3044 Compatible by Thomas Silva

After researching different types and brands and comparing the performance upgrades for four or more cold air intake kits for my 2004 Holden Monaro (read Pontiac GTO). I wisely purchased the stock K&N Gen II kit which is incredibly easy to install as it was carefully designed to fit the engine with no modifications. The increase in performance is as shown in the attached graphic. This mod is everything. No issues or quirks, although I'm not sure why the Gen II kit can't be offered in flashy metal, but looks are secondary to function. A very reasonable purchase.