Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Muffler rusted out and hanging so I broke it off. Should I leave it this way?

Bdorion1 · 07-31-2011, 12:23 AM

So I've lurked around here for a long time and finally have a question I haven't seen anything on. So here's the story:

I went out one day to see my muffler hanging off and touching the ground. It had been rusting out and the midpipe looked like swiss cheese so i just snapped it off temporarily until I could have it fixed. Long story short, I never did fix it. My car has a relatively small engine and it isn't loud by any means relative to many other cars/motorcycles on the road. I have driven this way for months now and never had a problem with the police. I even renewed my inspection this way.

So my reasoning now is that less weight, less aerodynamic drag and possibly reduced back pressure (questionable?) would lead to a small mpg boost. Are there other factors i'm not accounting for here that could negate the benefits?

Btw A-B-A isn't practical because the "A" stands for a $250+ repair job.

07-31-2011, 12:23 AM	#1 (permalink)
Bdorion1 EcoModding Lurker Join Date: Jun 2010 Location: ny Posts: 14 Fresh Powder - '12 Nissan Versa S Thanks: 5 Thanked 1 Time in 1 Post	Muffler rusted out and hanging so I broke it off. Should I leave it this way? So I've lurked around here for a long time and finally have a question I haven't seen anything on. So here's the story: I went out one day to see my muffler hanging off and touching the ground. It had been rusting out and the midpipe looked like swiss cheese so i just snapped it off temporarily until I could have it fixed. Long story short, I never did fix it. My car has a relatively small engine and it isn't loud by any means relative to many other cars/motorcycles on the road. I have driven this way for months now and never had a problem with the police. I even renewed my inspection this way. So my reasoning now is that less weight, less aerodynamic drag and possibly reduced back pressure (questionable?) would lead to a small mpg boost. Are there other factors i'm not accounting for here that could negate the benefits? Btw A-B-A isn't practical because the "A" stands for a $250+ repair job.