dual exhaust

[Ridleyj329]

first off whats the difference of a dual than a single exhaust? i hear that its a good thing but dont exactly know why. so could someone explain? thanx. second, is there anyway to install a dual on my 92 SC2 DOHC?

[Ridleyj329]

also is there anyway to get a performance muffler that will add more power but w/o being so loud?

[lonelywolf8588]

Dual exhaust is usually only good on engines with two exhaust manifolds or headers. It is probably better to use a single outlet exhaust with a larger diameter pipe (around 2"-2 1/2") on a 4 cyl. with only one manifold or header. Flowmaster makes a few mufflers that are quiet until you really get on the accelerator. F.Y.I. exhausts don't "make" horsepower, they free up horsepower out of the engine by reducing drag and resistance.

[sierrap615]

exhaust tuning is different per engine. in the case of the saturn 1.9L a dual exhaust does nothing performance wise, however it can affect the exhaust sound.

a second muffler would need welded in like so- http://files.automotiveforums.com/ga...p?photo=29080&

every muffler is unique in both preformance and sound. they even sell mufflers with removible silancer. i personially whent with a cheapo 2.5" turbo cheery bomb from autozone. a little power is freed up with out a lot of extra sound.

Originally Posted by lonelywolf8588

F.Y.I. exhausts don't "make" horsepower, they free up horsepower out of the engine by reducing drag and resistance.

that depends on how you define "make" and "free up". having a non resticrive exhaust is one thing, but with proper tuning of tube length and diameter to a certain RPM range and heat transfer, the exhaust system can make power. (using reflective pluses to "pull" exhaust gases out of the combustion chamber and pull intake air in)

[Ridleyj329]

so would it be a positive thing at all to try and put on a second exhaust? also would i have to weld it? i got the idea when i was lookin up factory replacemant parts and forund a catalytic converter the had two opening. couldnt i just connect to different exhaust lines?

[sierrap615]

Originally Posted by Ridleyj329

so would it be a positive thing at all to try and put on a second exhaust?

sound and look

Originally Posted by Ridleyj329

also would i have to weld it?

i would be very impressed if you could find a way to do it without welding

Originally Posted by Ridleyj329

i got the idea when i was lookin up factory replacemant parts and forund a catalytic converter the had two opening. couldnt i just connect to different exhaust lines?

there is not enougth clearance over the rear axle for a second pipe, unless you would do a dual side exhaust.(not as easy as it sounds)

[Ridleyj329]

so basically no go, cant be done?

[sierrap615]

it can be done, but if you are going to do it have it done like in the photo above.