Of course I searched but after the first 10 pages my eyes got blurry.

So which full exhaust give the best increase in power? The FI exhaust looks amazing but is it really worth the $1500 it costs? Then you have invidia for about $900. I probably shouldn't even mention the OBX or M2 exhaust. They are around $600.

I'll put my flame suit on now.

Go ahead nugyen.

 

Weird grudge man.

I think most exhausts give about the same power, which is to say, unfortunately, not very much.

Test pipes will bet the most horsepower, but the drawbacks would be increased rasp (resonate them to mitigate this somewhat), illegality, and very smelly exhaust.

The biggest difference from catback to catback is largely sound. Straight pipes are the cheapest option, but will have the same issues as test pipes. The Tanabe medallion exhaust is pretty mellow and subtle. Fast intentions is more aggressive. I also like top speed and motordyne.


Chill out buddy.

"Nugyen"

 

FI does add it's claimed 18 HP, and 8 TQ, Seb at Specialty Z does FI's dynos, and is not about to BS about numbers.
Then there's the design, you couldnt get a more efficient flow design while still keeping the pipes tucked.

 

Think the op is not to thrilled with the fi exhaust price of $1,500.00
Power wise FI is real deal, IMO you get what you pay for.
If dropping $1500 might as well get a real JDM or at least pay for most of it.
FI impressed when first released, now there are endless choices/combos.
Axle back/cat back & full exhaust systems.

 

Exhausts are all WAY over priced! It's just metal. Some have different designs so that can add or take away power but not much in a CBE. I'd go true dual though for a design with an X pipe over an H pipe. If you find one from China for $500 and have to pay a few dollars if it doesn't fit right, who cares?! Take that extra $900 and buy something pretty. Even the China lower grade SS pipe will out last the car as it rusts and falls apart in 30 years.

As for the most power and best sounds stick with an exhaust that runs a Helmholtz resonator, not an inline like FI. Read up on Tony from Motordyne about HH's. They kill rasp, drone and add power because that chamber stores air pressure. When the CBE has a drop in pressure or raspy sounds or drone, that air is released back into the exhaust to fill the air gap from the different cylinder out puts. This keeps up exhaust scavenging for faster exhaust release and makes a nice smooth sound.

Make your own like I did or you'll have to pay for the only two that come to mind which are ART motordyne or HKS.

 

Thanks for the replies guys.

 

A Helmholtz resonator is used to lower sound at a predetermined frequency, by canceling sound wave peaks. It has NOTHING to do with power and flow scavenging.

When Motordyne uses the words resonance tuning, its not tuning of the car, its tuning as in tuned to a certain frequency.

And those $500 Chinese SS pipes might last, but not the welds!!

 

Well I completely disagree, like I said, read up.

Start here...http://www.importtuner.com/tech/impp...ct_or_fiction/

And I've never had an issue with a weld...TXS, invidia, obx, DC, top speed etc etc. if it did fail for the OP I bet he has $5 for a muffler shop to reweld the joint. It's not a big deal.

 

If its on the internet, it must be true, huh?

A magazine article? Naw, no scientific proof.