i have a 06 gt mustang. i took off the mufflers and put an kn air filter. how will this affect my car?

Answer 1

computer confusion you will be beyond compensation parameters you will most likely lose performance, while gaining attention of your neighbors. if you've made no fuel delivery changes, you'll run lean & ecm will retard timing to comp. for detonation. put mufflers back on freeer flowing than stock to take advantage of free flowing intake side. Changes to increase flow on one side or other need to be done equally

Answer 2

The S197 cars will not increase power from a muffler swap. The stock system is designed to handle in the neighborhood of 400 HP before becoming a restriction. Adding the K&N filter will allow for a little more air under high RPM conditions increasing power slightly. If you get a cold air kit, you WILL need to tune the car with a tuner. The computers in the 05+ Mustangs are VERY sensitive to change but can make good power if you do the right mods.

I recommend you do a search on some of the mustang forums out there. They all have sections for the S197 cars. Do some research and you will save lots of time and money.

I also want you to know that YOU HAVE NOT VOIDED YOUR WARRANTY. Some people need to read the Moss Magnussen act. Might I recommend you join some forums on the internet and learn as much about your car as you can.

Answer 3

As OklaTom said, unless you go back factory with the cats and all, portions of your warranty won't be covered at all. (when most say they took off the mufflers, most mean they took off everything and is a straight pipe from engine to rear)

The muffler change is a normal change that most do and doesn't really mess with the warranty.. They are actually built now to take a little backpressure in the exhaust to run right. That's why the muffler change sound good, but don't really add anything to performance....

Having no Cats can also set the check engine light on due to the front (fuel control) o2 sensors relying on that same backpressure to make right choices... plus add to that the rear o2 sensors will set a code possibly (I've seen cars with the simulators for removal of the cats set cat o2 codes already...)

The K&N air filter... you are allowed to run it, but you better read and follow the directions to the letter... if not, I've found unoiled K&Ns cause lean codes with the cold air tube causing real headaches with lean running due to too much air and not enough fuel.

Over oiling a filter can ruin (in some cases) or mostly coat the MAF sensor wiring and it needs to be cleaned.. if it really bakes it on, the sensor has to be replaced...

BTW.. some of the power chips leave tattle tale signs in the PCM.. and I've seen power chips cause major costs due to warranty non -coverage.

Answer 4

if you completely removed the mufflers it will be very very very loud, too loud to drive comfortably and probably illegal. go buy some flowmasters for it instead.

it might also run like crap since its designed to have mufflers and the computer might freak out, you also need the back pressure that mufflers provide for the car to breath properly.

the k&n will help it breathe a little better but nothing noticable unless you get the full kit, not just the drop in filter.

sweet car and good luck.

Answer 5

It probably wont affect it much. I did this to my mustang, it was a completly different motor, but the same should apply. You will probably barley feel any difference and only when you hammer the gas and really pay attention.

Answer 6

Well, to begin with you have just voided your warranty. And probably the first time you get on it with straight pipes you will have a modified exhaust ticket.

Answer 7

it will be louder...slightly better on gas...but probably not noticeable...it will have more low end torque, and slightly more power when floored.

Answer 8

They probably want honor your warranty, and why would you do that.

Answer 9

hun , what?, it's to loud , I can't hear what your saying!