A Few Dual Exhaust System Questions...

[JAFO]

I think that he means 45 degrees sideways, as in closer the the tires.

I have heard of this and they say that it is a concern for all hatchback like vehicles. The idea is that there is a low air pressure area in the back of the vehicle while you are driving. And the exhaust fumes can be flushed into the passenger compartment if the seals are not working. Cars with trunks have seats and the trunk is more seperated from the passenger compartment.


I really don't think that it would be a major worry. If you smell exhaust open the windows, turn on the air vents and it would be ok untill you could replace the seals.

[etlsport]

or drive fast enough to get away from the fumes!

... i love the look of duals

[IndianaVX]

my RMS Hooptie van, (extended G20 chevy) has that problem. when i open the rear windows,or when i take the window out completly to haul lumber longer than 14 feet, i get alot of exhaust fumes, so i gotta keep em closed. not saying that my van is as airodynamic as the vx, but the fumes do linger back there, and opening the front windows dosent help that much either, seems to draw them in even more.
seems that the fumes would just blow away, but they dont.......
just makin a point..

[IndianaVX]

duhhh, and my exhaust points out the side , not the rear.....(my most important point) i would think that pointing down would get the exhoust fumes into the air stream running under the vehicle, and away from the back of the mobile.
oh well,
carry on my wayward son.............

[morgan-tec]

The exhaust recirculation is common in pretty much any suv but not really a concern in my book. Since the rear window does not open i would not even worry about it. As for the pipes you will never feel the difference in smooth bent pipes vs. mandrel. You would be really hard pressed to see a diffference on the dyno as well.

[Joe_Black]

There are vents located around the perimeter of the rear door that allow for the exchange of inside air, so it is a legitimate concern. When a significant level of CO builds up you won't smell it, you'll just go unconscious.