Okay guys, here we go with another question...what do you guys think about true dual exhaust systems vs. single exhaust systems? And by single i mean like single piping and single muffler with single tip (i.e. DC Sports single Exhaust Systems). What are pros and cons of both? I figure that AT LEAST dual outlets is the way to go for aftermarket since the car comes that way, but then why do some companies make single exhaust systems? Any help would be great...thanks!!

 

single just doesn't look right.. da z needs a dual.

 

I kinda agree too...but it defintiely looks different, which i kinda like...hehe

 

It all depends on what you want. If you want looks go with a dual. If you want less weight go with a single. If you are gonna run twin turbos the obvious choice would be true dual.

 

My preference of course in dual exhaust. I like the idea of the exhaust from cylinders 1, 3 and 5 on one side; and 2, 4 and 6 on the other. That’s the way God intended it to be.

 

Not if you were running a single turbo. If you went with the TN ST you would want a single exhaust to mate up with the downpipe.

I have a single apex and it works great. Not loud or over powering just a good exhaust.

Ruben

 

I am trying to decide on an exhaust and I am thinking about either a full titanium single like the JIC or an hks hi-power true dual. What applications are these exhausts good for. I currently am N/A, but I am thinking of going to turbo/sc next year.

Are there good power gains with the JIC. I would think that the 60 pound weight savings might be just as good as the 10hp from the HKS.

What do you guys think?

 

jic is 60lb lighter than the hks? i think the stock exhaust is 72lb? i prefer dual tips but its what ever you like, can't go wrong with either. the JIC is y-pipe back, while the hks is cat back. FI is a big commitment so if you aren't 90% sure you are going FI then i wouldn't base my choice on it

 

f1 = true dual (3inch if u can pull the cash)

 

3'' duals are absolutely not neccary. I would suggest an EVOTT as the largest dual exhaust you would ever need (for twin turbo applications). The JIC should support up to 500whp very well.

 

A 3" true dual on an NA car is going to kill your performance.. That is WAY TOOO MUCH FLOW... Get the 2.5" TD or a single 3"...

 

You are talking about 2 exhausts that are on the opposite end of the spectrum. Your thought process doesn't make much sense to me.

I recommend looking at the drag racing forum and seeing what kind of trap speed and times people are getting with the 2 exhausts. I know the JIC single is viable for drag racing so I assume it yields a power increase.

 

I too have the same Q. I was actually thinking of makign a thread about this (good thing i diden't). I am leaning towards the JIC. Currect me if i'm wrong but the Full Ti is 3'?

 

Save money and build a custom single. I did an HKS Ti for $500 bucks. Sounds good too. Either one you are going to gain performance, Its all how you want it to sound, look, price, weight?.....

 

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The JIC setup with a aftermarket Y pipe and test pipes can easily save 50 lbs. The test pipes alone save u 15. The muffler and midpipe will save you 30. Aftermarket Y pipes save you 15 also. They're much lighter.

 

if u r goin turbo/supercharged...save up for big exhaust...not this single pipe crap....there is a reason there r 2...yes 2 cutouts in the rear bumper....1 exhaust tip looks RETARDED

 

yeah the JIC Ti weighs about 9lbs. So if the stock y-pipe back is 72lbs (not sure but someone said it earlier) then that would be.............63lbs of savings.

I have the JIC single stainless and it weighs about 18, still rediculously light. I think the single is actually better for NA. a 3" true dual is too much flow and with NA a little back pressure actually helps. Even if the hp gains aren't as much with the single, the drastic weight savings is worth more than the difference. Plus I dig the single, old school I guess. It sounds really badass with the silencer off.




I also added the Power Enterprises y-pipe which is a great value. More flow and about half the weight or less.

As far as FI, a single turbo only has one output (I think they are usually 3" correct me if I am wrong). So a true dual is just not an option and a split dual would probably just look different. If it is twin-turbo, then a true dual is the only way to go and as big as you can find to match the turbo exit diameter (again I think 3" usually).

 

the single look is definately a taste issue. I waited my whole life for a dual exhaust car and then immediately switch to a single, go figure. But yeah with supercharged, true dual and big is necessary.

 

The primary difference is design, not performance. Keep in the mind the choke point (Y-pipe) of various exhausts. If you are down to a, say, 2.5 inch I.D. single pipe, doesn't matter what you put after it.

One of our members compared the potential volume of various size exhausts. Great read.