dual exhaust on a 4 cyl back pressure????

[dhsmartass]

i hear so many things about how you cant do dual exhaust on a 4 clyinder engine but i've seen quite a few with dual... i hear that you have to have back pressure or something... please tell me what this is about...

also how much does it cost to put in a body kit just the installation

what about how much it costs to paint it

my car is on www.sounddomain.com/id/dhsmartassry

nothin too extreme but i'm workin on it let me know what ya think of it if it sucks let me know wut i can to do make it not suck...

You really can't do duals on a four-holer in the true sense of the term, unless you wanted two exhaust manifolds (one for 2 cylinders, one for the other two) There is only one bank of cylinders; thus, one exhaust manifold and one pipe. What the aftermarket guys do is split the pipe into two in back, so that you have two mufflers and two tailpipes but from the mufflers to the engine it's single exhaust. I doubt you'd lose much backpressure, as long as you don't use too large a pipe diameter(too little backpressure results in weak bottom-end torque, something we 4-cylinder guys really can't afford with our heavy Camrys). I can't really answer the body ?'s but I'm sure there's at least 20 ppl here who could.

[kgasso]

Like stated, you can do it for looks but it's not going to net you anything. I thought going from a smaller -> larger pipe was a flow velocity issue though?

[jcivic00]

in order to get the best response from the dual setup you would probably want to go from a 2.25 diamter tubing to a 2 or even 1.75 actual exhaust tip It may look stock, but that's the best way I've seen to not lose any power.

[nort0188]

I heard something like, if you lose too much backpressure, the exhaust gasses will flow too quickly over the valves and overheat them. Is that true as well?