here i go again. my gmc-lovin neighbors car! I have a K&N cold air intake on my cougar. He has intake headers and exhaust. Am I toast? Im just wondering...I'm not really a racer but I love sayin MY CAR IS BETTER B*tch. That 3.4 has 200hp anyhow, those mods my be my worst enemy. but the impala also weighs about 3500lbs.