Dual Exhaust-Possible? Options

[madmods]

I would like to use a dual exhaust or a single one coming out of the middle to clean up the looks to my rear. Has any one done it? Did they have to cut into the
spare tire holder?

[playr158]

"That's not true, it doesn't matter which side the actual exhaust flow comes out, in fact the best performance would be if it all came out one side instead of having to split the flow. It loses velocity when it hits the fork in your exhaust. However, it WOULD result in worse flow if the piping was too small for that one side to flow enough volume, but that probably won't be a problem in this case."

dude you didn't even read what i was walking about we are comparing a 90* split compared to an even Y split.....Y is better then 90* by any physics means......

and yes the whole point is it looks cooler.....and CENTER exhaust nasty dual tip wtf....keep that to EURO stuff and mini coopers.....

[Gen6-GT]

"That's not true, it doesn't matter which side the actual exhaust flow comes out, in fact the best performance would be if it all came out one side instead of having to split the flow. It loses velocity when it hits the fork in your exhaust. However, it WOULD result in worse flow if the piping was too small for that one side to flow enough volume, but that probably won't be a problem in this case."

dude you didn't even read what i was walking about we are comparing a 90* split compared to an even Y split.....Y is better then 90* by any physics means......

and  yes the whole point is it looks cooler.....and CENTER exhaust nasty dual tip wtf....keep that to EURO stuff and mini coopers.....
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Actually, you said 90% would come out one side, not a 90 degree split, but I see the earlier message someone else posted about the 90 degree split and yeah, I agree, that would be REALLY bad. The exhaust is going to hit the wall with a 90 degree split in there. You want it to encounter as little interference as possible.

The center exit dual-tip thing is subjective, I don't think it's that bad looking, I only suggest it for the performance benefit. The dual exhaust is just extra weight on a 4-cyl., but it does tend to sound better (louder) and it does look nicer if it's done right.

As for the sound being worse with 90% flowing out one pipe, that's not necessarily true at all. A lot of the SRT exhaust systems are largely straight-back with a split-off for the second pipe, and they flow mostly from one side, but they sound even deeper than the stock system.

Here's the Mopar/Borla cat-back, notice how the pipes are set up, most of the exhaust comes out the driver side. (keep in mind that this system was designed and tested by Borla, for Mopar. i.e. it's top quality for flow and sound)


What it comes down to is the design; having inline resonators and as straight a piping as possible will make all the difference. The resonators will take out the raspiness of the I4 and keeping the main piping straight will give you the best flow characteristics.