I want to gain a little more acceleration so i can take off quicker like when going on the highway but i dont like the ones with large mufflers so i am thinking about getting a flowmaster exhaust installed on my ex. Even though it is automatic will i still notice any performance gains, even slightly? I figure since the pipe outlet is like the same size as the oem one that i will still have the back pressure needed and get the benefits of the high flow exhaust pipe too.also if i get that installed should i also get a new aftermarket intake put on too? is it better to have both or would it be a waste and should just get the exhaust. becuase i hear the stock air intake system is more efficient thatn a short eram or cold air aftermarket one.thanks
If you're buying an aftermarket exhaust system, you're wasting your money if you don't use the correct muffler. You'll just be restricting the exhaust with a smaller diameter than the upgraded system and might as well not even upgrade. Buy the correct one and you should notice a little extra torque while going up hills. Don't worry about back pressure, your OEM cat will create enough back pressure by itself. I believe that you should see a little extra power. An upgraded intake combined with an upgraded exhaust will improve your performance. The gain may not be justified by the cost but you will get an improvement.
usually that kind of stuff is bad for the vehichle my dad is a mechanic and he says that sure it makes it sound cool but in the long run it ***** things up in your engine. i wouldnt do it but thats just me
Your not going to see much of an increase in hp from these things but should notice a little difference. Having said that I wouldn't put a header on or cat. back. The largest restriction in the exhaust system on almost all cars, that arent already high performance, is the muffler. Thats how cars are so quiet with the factory muffler. I would just change the muffler, no need to do the whole pipe unless you just want to get rid of the resonator as well; pretty sure civic has a resonator. Stock air intake is more efficient. I would run the large intake tube for it but hook it up to the original air filter box. If you put filter on end that comes with it, it looks cool but it only sucks in hot air from engine compartment. Cold/ colder air is better for performance. A KN air filter would let more air in and fit the factory air filter box. You can also look in to putting a larger throttle body on it but they are exspensive and dont really give you much hp for what they cost. would probably add some torque though. Hope this helps.
