What have you done with or to your M3 today?

[MLife614]

Originally Posted by OG Shark

Had the tint redone

Beautiful M, how is the rear tint looking in reference to our Dot Matrix issues....and what brand Tint did you go with? Curious if there is a significant difference between the sedan vs coupe. Thanks in advance.

[Idfkman]

Went into limp mode during an evening drive. Pretty nasty misfires leading up to it. 02 sensors inbound.

[DrFerry]

Originally Posted by Idfkman

Went into limp mode during an evening drive. Pretty nasty misfires leading up to it. 02 sensors inbound.

Depending on the mileage, or age, you might as well do all four of them. Definitely don't want the motor to be running lean. Hope the new sensor(s) fix it.

[Idfkman]

Originally Posted by DrFerry

Depending on the mileage, or age, you might as well do all four of them. Definitely don't want the motor to be running lean. Hope the new sensor(s) fix it.

145kish on factory 02 sensors so it's probably way past due. Maybe 15-20k of those miles have been catless. Running e85 now as well, on top of that.

I was planning to knock out the 2 Bosch pre-cat sensors as I understood the post cat sensors are not active with a catless tune(?) Could be totally wrong though.

[Scharbag]

Originally Posted by Idfkman

145kish on factory 02 sensors so it's probably way past due. Maybe 15-20k of those miles have been catless. Running e85 now as well, on top of that.

I was planning to knock out the 2 Bosch pre-cat sensors as I understood the post cat sensors are not active with a catless tune(?) Could be totally wrong though.

Yeah, the rear O2s are pretty much useless with a stage 2 tune. Even with a stage 1 tune, the rear O2s are for cat efficiency monitoring only and do not play an active roll in fuel management.

Get new sensors from FCP and then you are good for life!!

[DrFerry]

Originally Posted by Idfkman

145kish on factory 02 sensors so it's probably way past due. Maybe 15-20k of those miles have been catless. Running e85 now as well, on top of that. I was planning to knock out the 2 Bosch pre-cat sensors as I understood the post cat sensors are not active with a catless tune(?) Could be totally wrong though.

Congratulations on the O2 sensors lasting so long.. It's definitely time for new ones.. I could be wrong, but it probably depends on the type of tune installed. My car has no primary cats and uses only high flow secondaries, but as far as I know the O2 sensors still actively manage (monitor) the Air Fuel Ratio (A.F.R) mixture for both banks. Besides catalytic converter efficiency, the O2 sensors are monitoring the oxygen content in the exhaust gases in order to maintain stoichiometric AFR ratios (14:1) [within the allowed signal voltage bandwidth] by aiding the adjustment of injector pulse width (when, or if, more fuel volume is needed). Some people straight pipe the entire exhaust system, but the O2 sensors' signals are still needed by the DME/ECU. Perhaps I am wrong and there is some redundancy between the front and rear sensors. Whatever the case, they play an important dual role. Since you sometimes run E85 the injector pulse width must be changed by the DME to allow a different (more) fuel volume i.e. to maintain lambda =1 and this is achieved by the O2 sensor signals. Again, that's as far as my knowledge on the topic goes. @BPMSport would know for sure.

[FlexGT85]

So sue me… [IMG][/IMG]

[Davisca455]

Cleaned the Air Filters today.
They seemed pretty dirty for less than 2500 miles though.

Two trips to Laguna,
One for a track day (350 travel + track mileage),
One to crew for a friend at an SCCA Regional (350), Trip to Olympia, WA (1400miles).

The chin snorkel is like a Shop Vac!

[AC/DC]

Originally Posted by Davisca455

Cleaned the Air Filters today.
They seemed pretty dirty for less than 2500 miles though.

Two trips to Laguna,
One for a track day (350 travel + track mileage),
One to crew for a friend at an SCCA Regional (350), Trip to Olympia, WA (1400miles).

The chin snorkel is like a Shop Vac!

I don't think I've ever seen this setup. I'm guessing this is part of the G power supercharger? Please do tell!

[Davisca455]

Originally Posted by MBimmer2011

I don't think I've ever seen this setup. I'm guessing this is part of the G power supercharger? Please do tell!

That's correct.
But it's an older kit.
I think they changed the design at some point, and went away from the carbon airbox.

[Le Patron1]

My X came over and was upset when I told her she needed to leave as I had someone else over. The next day I saw she had put an X on my front passenger fender...So trying to figure out where I can take it to get painted

[Longboarder]

Originally Posted by FlexGT85

So sue me… [IMG][/IMG]

Actually that's pretty cool.

[tbuck]

Originally Posted by Longboarder

Actually that's pretty cool.

I will agree that it looks good, and honestly only a purist would know it is the wrong size and for another car. Unfortunately I AM a purist, and therefore would not be putting one of these on my car. OCD for the lose, LOL!

But it does look really good.

[FlexGT85]

Originally Posted by tbuck

I will agree that it looks good, and honestly only a purist would know it is the wrong size and for another car. Unfortunately I AM a purist, and therefore would not be putting one of these on my car. OCD for the lose, LOL!

But it does look really good.

Thanks!! lol, I dig the look a lot! I'm usually a purist with details like this as well but I decided to make an exception.

This one is the G80 part number, straight from the dealer, not the IND. The size is actually pretty close, I had both of them side to side but I forgot to snap a pic. Definitely a lot closer than the F80's emblem.

[RelaxIN2]

Originally Posted by tbuck

I will agree that it looks good, and honestly only a purist would know it is the wrong size and for another car. Unfortunately I AM a purist, and therefore would not be putting one of these on my car. OCD for the lose, LOL!

But it does look really good.

I'm glad I dont have those issues... OCD..!!

[Dpc2u]

Originally Posted by RelaxIN2

I'm glad I dont have those issues... OCD..!!

I do. :

[tbuck]

Originally Posted by FlexGT85

Thanks!! lol, I dig the look a lot! I'm usually a purist with details like this as well but I decided to make an exception.

This one is the G80 part number, straight from the dealer, not the IND. The size is actually pretty close, I had both of them side to side but I forgot to snap a pic. Definitely a lot closer than the F80's emblem.

Well, please share the part # for all of those that don't have extreme OCD!! Yeah, that was my issue with the F80 version, way too big. If this one is closer I might just have to break....down....and....

Also, is it gloss black, black chrome or what? Can't really tell in the pic. All of my current parts (grills, side vents, etc.) are black chrome so would be great to keep it all consistent. Thanks!

[FlexGT85]

Originally Posted by tbuck

Well, please share the part # for all of those that don't have extreme OCD!! Yeah, that was my issue with the F80 version, way too big. If this one is closer I might just have to break....down....and....

Also, is it gloss black, black chrome or what? Can't really tell in the pic. All of my current parts (grills, side vents, etc.) are black chrome so would be great to keep it all consistent. Thanks!

I actually hadn't really thought about whether it's black or black chrome, but it looks like it matches with the Shadowline, so I would say that it's gloss black.

Part number is 51-14-8-084-161.

[LakeSurfer]

Originally Posted by FlexGT85

I'm feeling the burn right now bros...

Roof is getting redone as I type this for the 2ND time in a year; first time we sanded it down and reapplied clear, but as the car sat for a couple of months under cover in the back of my shop while I waited for some parts, it started to bubble... So what was already painful enough as it was (minor body work, paint and a new set of Bayoptiks), also became hiring a boat guy to come in and apply new epoxy to the roof...

Pics of the roof before and some that I just took in-process are below, also a pic of the custom paintwork I did to the front bumper pre install and after install with the Bayoptiks.

Are they/you applying automotive clear over the epoxy? Epoxy is not compatible with UV rays and will discolor.

[LakeSurfer]

Originally Posted by Le Patron1

My X came over and was upset when I told her she needed to leave as I had someone else over. The next day I saw she had put an X on my front passenger fender...So trying to figure out where I can take it to get painted

Painted an X or keyed an X. Spray paint can be removed with acetone and not hurt the cars paint.

[LakeSurfer]

Originally Posted by jsivadas

Got my bumper back from the body shop!

Deleted headlight washers, marker lights and filled license plate dimples. Looks so much cleaner now.

Will get GT4 lip installed on Saturday.

Once that's done just gotta wait 2-3 weeks and the whole front end will get new PPF and Ceramic coating

Do you know how they deleted the washer and marker holes?

Also how did they end up removing the headlight washer system? I understand it's sort of a pain and you have to code it out.

I'm contemplating plastic welding patches in mine but I'm not sure if it's the best route.

[MLife614]

Originally Posted by GotV8?

Might as well wear OEM badge!!

I'm Glad I wasn't the only one who tried this Badge. LOL

I posted mine on 8/17/21. However, purchased my from ECS Tuning website.