I'm having the same problem with my K&N cold air intake. After installing it, seems like my H2 lags at low speed. I looked at a dyno read of the K&N on the H2 and it seems like it only gains power at high RPM. I was looking for it to improve on the low end. I've tried disconnecting the battery several times but nothing has changed. I do see a slight increase in gas mileage though.
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2003 Hummer H2 LUX...sold
2006 Hummer H2 SUT LUX...sold
2018 Polaris GEM e4
2022 Can-Am Maverick X3 XRS Turbo RR
2024 Rivian R1S Adventure
2024 GMC Sierra AT4X HD
2024 GMC Hummer EV 2X SUV
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