Reviewed By NILS W (Titusville, FL) Reviewed for a 2008 Chevy HHR —1/10/2008 10:16 PM
Purchased flowmaster 60 series to put on a 2008 Chevy HHR. It really sounds good but haven't had it on long enough to see how it affects overall performance.
Reviewed By Frank R L (Brick, NJ) Reviewed for a 2015 Chevy Colorado —4/28/2015 8:50 PM
Stock exhaust was so quiet you had to check the tach to see if it was running. I called Magnaflow and asked if the exhaust system my dealer mentioned was quiet, the answer was "YES." It has the largest muffler we have. When it was installed it was NOT quiet. The only option was to add a resonator. The replacement system was a direct fit no alteration install. The resonator was a custom install that had to be welded in!! Fortunately with the resonator it is quiet but noticeable.