i have dyno max mufflers on my 01 gt and i unbolted the cat back to see how it sounds and i like it. would it hurt anything to just cut the mufflers out and put a pipe there? I was just wondering because i think that it sounds great and i dont have any money right now. all i have is a k&n intake and side exhaust.
Another thing I remember about having no muffs or cats in my old vert, everytime I would get out of the car, Id smell like I had just be doused with Gasoline.
How would having no mufflers lean the engine out and cause damage when its not an issue to run an o/r mid pipe and a high flowing catback, and even that plus longtubes..?
Don't know. He was too technical for me to understand. Logically though, think about it. More air going out = more air coming in. More air + same amount of fuel = lean conditions.
Doesnt the computer adjust to that though? Thats one of the primary o2 sensors job, to monitor the a/f ratio and send info to the ECU so it can adjust accordingly, to a degree... correct? I dunno, thats just my guess on it... but I imagine thats how its ok to have an intake, tb/plenum and full exhaust and not have to upgrade injectors or anything like such.
I have been running no mufflers for almost 3 yrs on stock H pipe, no problems. I think it sounds brutal, really sick at WOT. Even the the service manager at the Ford dealer said it sounded good when I brought it in for an alignment. Little rough on the ears when cruising at 70 though.
Doesnt the computer adjust to that though? Thats one of the primary o2 sensors job, to monitor the a/f ratio and send info to the ECU so it can adjust accordingly, to a degree... correct? I dunno, thats just my guess on it... but I imagine thats how its ok to have an intake, tb/plenum and full exhaust and not have to upgrade injectors or anything like such.
I have the Magnaflow aftercat X-pipe (still has the stock cats) and SLP LM2s. I was disapointed that is wasn't any louder than it was. So I pulled the mufflers and put in a steight pipe. Much better, sounds realy good when you're getting on it. But I drive a 130 miles each day and with the windows up the drone gets a little annoying but goes away as soon as you roll the windows down. But its not any worse the the Flowmasters I had on my '93 5.0. If you keep your stock cats you should be ok.
As for back pressure, your stock system has 4 cats and 2 mufflers. Those 4 cats will supply far more back preassure than the mufflers. So which do you think is worse, running an o/r pipe with no cats and hi flow mufflers or 4 stock cats and no mufflers?