I took my Malibu to a car show that was 2 hours away yesterday. It was the longest drive I have taken it on since swapping the rear. I realized at 49 years old that noise and vibrations REALLY bother me. Car is a mild 350 4 speed with 3.31 rear ratio. Exhaust is small Heddman long tube headers, 2.5 inch exhaust with Ultra flow mufflers and stock type tail pipes. No catalytic converters. Cruising around 3,000 rpms is 70 mph and gets quite noisy even though the car still has all of its original sound deadening. The exhaust drone varies depending on the rpm.
I would like to reduce the noise level to a more acceptable level. I just started looking at mufflers last night. I think I am down to either the Walker Quietflow SS or the Dynomax super turbos. I know both are offered in longer lengths. To me, chambered mufflers like Flowmasters or straight through mufflers like the Ultra flows are not acceptable. My thinking is that a reverse flow would probably be the best choice. I have even thought about adding catalytic converters back into the equation as they seem to act like resonators in some instances. I am curious to hear some opinions from others of what they found acceptable
I would like to reduce the noise level to a more acceptable level. I just started looking at mufflers last night. I think I am down to either the Walker Quietflow SS or the Dynomax super turbos. I know both are offered in longer lengths. To me, chambered mufflers like Flowmasters or straight through mufflers like the Ultra flows are not acceptable. My thinking is that a reverse flow would probably be the best choice. I have even thought about adding catalytic converters back into the equation as they seem to act like resonators in some instances. I am curious to hear some opinions from others of what they found acceptable