Howitzer

The raspy sound is the reason I put my resonator back on after installing a section III Magnaflow. These engines sound awesome at 3000 to 6500 RPM but once you get below that or let off the accel quickly you'll get the raspy fart-back sound. So, I put the resonator back on which created more back pressure I believe and alleviated that noise so its a little quieter but more consistent in tone.

cleung

yeah the resonators quieted the rasp down but not due to back pressure. My resonators are straight through so no extra pressure its just muffled the rasp, if you pay close attention its still there just really quiet now. My exhaust is super quiet at high rpm and lower rumble at 2-3k rpm. Where as before the resonator it sound badass at high rpm and annoying rasp at 2k rpm.

west

I installed these today between the exhaust bung and the o2 sensor (one for each downstream sensor) and the 'increased emissions' error went away for me. Only $6.23 tax included.

cleung

Yeah I bought those too, I just haven't had time to try them yet. Are those the long ones or the short ones? Have you taken your car out on the highway yet? Initially after installing my headers I never got a increased emissions light for weeks, it wasn't until I went on a road trip outside the city that I got my emissions light. I wonder if the foulers will work for long duration's on the highway?

west

My iDrive threw an increased emissions error shortly after starting the car for the first time once the headers were installed. The code went away when the de-foulers were installed.

cleung

Have you had it out on the highway for any longer drives yet with the foulers?

west

Depends what you consider 'longer'. I have been on the highway multiple times, but only 15-20 miles at a time. Put 170+ miles on the car since yesterday because the new sound is so addicting.

cleung

Well I think I will give the foulers a try. I will be driving down to Fargo in a few weeks, so we will see whether the light comes back after long drives.

cleung

Hey guys,

Sorry to revive a super old thread but I think I have finally found the right O2 sensor CEL light solution. I tried the spark plug non-foulers and that didn't work and I have been playing around with different O2 sim setups and I finally got something that works. Turns out that most of the sims available work if you don't remove the O2 sensors. If you do take the sensors out what you need is a 50 ohm 10 watt resistor in place of the sensor to act as the heater core of the sensor. These O2 sensors though will throw codes on long road trips, and the only solution that I have found that will never throw a code is by using a innovate LC-1 along with either your original sensors or with the 50 ohm resistors. I am currently running with the bimmerbrake oscillating 0.1v - 0.7v simulator with 2 50 ohm 10watt resistors and it has been good so far.

Sorry this took so long to figure out, I have been very busy with "life" and didn't have much time for the car this past summer.

Flguy76

I have neen looking and it only seems that a top mount manifold will fit on the e60? If the exhaust ports match up fine then theres no stock exhaust to desl with just a single catless 3 inch exhaust going out the back. Has anyone tried this.
this is what im doing now. Slow process buying parts as i can afford them. But there's plenty of room for it to fit. I have seen a e60 with an e46 turbo kit. Just had to do a little modification to the manifold and it was pretty easy. But i need to sap to 6 speed first my automatic wont hold the power..