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121 Posts
I was wondering if anyone knew what the HP increase is from installing a K&N air filter alone. I know that they don't have the CAI out yet for the 08 and newer models. I was just wondering what kind of increases I could expect from this cheap upgrade on the 3.6 L. I am just trying to find a relatively cheap way to squeeze 10-15 HP out of the motor to get it up to the 08 CTS/ 07 Enclave/07 Acadia...etc power of about 263 HP instead of the 252 on the Bu. Any ideas would be appreciated.