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Old 02-22-2011, 03:41 PM   #1
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Hello All!

Has anyone gone aftermarket with your exhaust system or muffler? If so, how did it sound? The motor doesn’t really make, uh, "sporting" sounds, if you will, but I say if it will help with power and MPG'*...why not? A local shop suggested pulling the system off of a Bonneville for a lil power and sound.

What are your thoughts?
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Old 02-22-2011, 03:59 PM   #2
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Leave teh exhaust on your Bonneville, that'* 2.5" stainless. You can swap out the muffler for a series80 (singel) or series40 (dual) for a louder deeper note. A free flow cat will deepen it more, different resonators will also change the tone. But leave the pipe as it is.
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Old 02-22-2011, 04:51 PM   #3
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Your not going to benefit or see and gains from switching the entire exhaust system from another car. A high flow catalytic converter and different mufflers MIGHT give you a very small increase in MPG'*.

Your best bet is just changing out the muffler(*) to get some better sound. I have Thrush Turbo Mufflers and it made the exhaust just slightly louder and gave it a deeper sound.

If you want a MPG or performance increase, your best bet is to focus on your intake, rather than your exhaust. You can change out your air intake for a FWI (Fender Well Intake) or CAI (Cold Air Intake)
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