This thing really makes the car pull now especially in the low end where I feel like a little power was missing. I was afraid it would be too loud but w/ my Magnaflow catback and big 'ol 18" Magnaflow resanator it is still very mellow at idle and crusing speeds, it's a little louder at WOT but it really sounds sweet. Install was a piece of cake and the quality/fitment of the piece was absolutely perfect. I chose not to put a header or flexpipe on because I heard the hp gains arent worth the money spent is this correct? What should I go for next as I am now seriously addicted to modding my once sweet and innocent little ZETEC?
Later

Later