It's not biased... it's a suggestion  :gunsmilie:
[right][snapback]197569[/snapback][/right]

well how would you suggest doing a dual outlet on a lancer (i think all of ours have a cutout bumper)?
[right][snapback]199327[/snapback][/right]

Well, no Y-pipes because our cars don't produce enough power to overcome the split.  You'll have a lot of flow going in one pipe and just a little bit going out the other.  You could do a single-in, dual out canister like the Evo X/RalliArt (think our stock exhaust, but with another exhaust pipe on the left side).  However, doing this will require modifying the stock bumper because there is only one cut out for the right side.  Aftermarket bodykit companies should be coming out with a rear diffuser that will allow a dual exhaust setup.  One of the users here (DKTRL) was working on one and it looked very promising... but he was "removed" from the forums.

The only other solution is to have a dual exit muffler (not canister).  This will allow the same function, but at half the size.  It looks something like this...

(IMG:http://www.nordicautoimport.com/ekmps/shops/nordicautoimp/images/bora_exhaust_301%5Bekm%5D300x300%5Bekm%5D.jpg)

Same function, different form.
[right][snapback]199372[/snapback][/right]

do they have something like this out for our cars yet?  I understand the concept and i agree with you when i had dual exhaust on my truck it made a noticeable increase.  Although will it fit on our cars im confused :(
[right][snapback]199401[/snapback][/right]