Looking for 350 sx exhuast

Blocked exhaust or egr valve

you probably cracked it when you hit or ran over the curb needs to be repaired and or welded. it won't run right until its fixed.. don't continue driving it or you will have bigger problems.

CHECK GASKET FOR CRACKS/WEAR TAKE ENTIRE EXHAUST OFF SPRAY WITH CARB CLEANER LET SIT FOR 15 MIN FLUSH WITH GARDEN HOUSE TILL JUST SEE PURE WATER LET DRY CLEAN INTAKE FOR EXHUAST WITH CARB CLEANER WAIT 25 MIN START IT UP RUN FOR 5 MIN PUT EXHUAST BACK ON.

Needs lower head gasket

This sensor is screwed into the exhaust system, there are two on this car, one before the converter and one after. there may be one screwed into the exhaust manifold, heres a picture to help you locate them, if you look at the exhuast you will find them, good day.

A little water is normal to come the exhaust. condensation. Gas would not come out of the exhaust, it would blow out the exhaust as in boom

The pipe glows because of the extra fuel from the choke. (four strokes do this) Look closer into the carburator for a blocked passage, or junk in a jet. Clean it out thoroughly!!!

its possible that you have a cracked exhaust manifold and you should be able to tell when the engine is cold or in the morning as it warms it goes away if thats not it is your car got the same power it always has
check flow out of the exhuast and see if its pluged most likly in your catalitic converter or hole in the muffler and last but not least check the exhuast dounut at the manifold collector and exhaust pipe they do go bad good luck

sounds lie a exhuast bracket has came loose

The cheapest and easiest ways to increase HP is intake and exhaust. Swapping a whole motor is a lot of work that comes with many headaches. A good aftermarket cold air intake will add 5-10 HP and you can bolt it in quick and easy. And putting on a good free flowing exhuast can add up to 25HP. Basically the intake allows more air into the motor creating more power, and if you get more air in you are gonna want that exhaust to get the air flowiing back out. So for a few hundred bucks you can get your car performing and sounding great.

Hope this helps.
And yes a 350 would fit, however you will need to swap your tranny to accept the 350 motor. Alot of work if you ask me.