stock + K&N drop-in filter + boost controller SB4 RPM Torque hp 2000 2100 14.7 5.9 2200 91.8 38.4 2300 92.7 40.6 2400 99.2 45.3 2500 104.6 49.8 2600 111.3 55.1 2700 115.2 59.2 2800 119.4 63.6 2900 122.4 67.6 3000 127.1 72.6 3100 125.4 74.0 3200 130.2 79.3 3300 135.7 85.3 3400 142.3 92.1 3500 145.3 96.9 3600 147.5 101.1 3700 152.1 107.2 3800 154.7 111.9 3900 161.4 119.8 4000 168.2 128.1 4100 176.9 138.1 4200 180.2 144.1 4300 183.6 150.3 4400 184.3 154.4 4500 185.9 159.2 4600 186.4 163.2 4700 185.0 165.6 4800 181.2 165.6 4900 174.9 163.2 5000 175.4 167.0 5100 177.0 171.9 5200 177.1 175.4 5300 172.5 174.1 5400 172.6 177.5 5500 170.8 178.9 5600 168.0 179.1 5700 162.7 176.6 5800 153.9 169.9 5900 151.5 170.2 6000 149.6 170.9 6100 146.4 170.0 6200 142.1 167.8 6300 139.3 167.1 6400 135.6 165.3 6500 6600 6700 6800 122.7 158.9 6900 119.2 156.6 7000 113.7 151.5 7100 111.4 150.6 7200 7300 7400