[TatuBuilt]

Hello! Iv been calling around to install new spark plugs on my 440 some shops told me not to do it as the car is to new?? I have a 2017 440i with 23k miles. Mods are Dinan tune, catless dp, awe midpipe, muffler delete, and bms intake. I bought the 2 step colder spark plugs. Should i be worried about installing these spark plugs? I would assume there is no risk as they are just spark plugs and recommended for modified n55's and b58's. The one step colder plugs arent recommended for b58 so i went 2 step. Also what should i gap them at? Never changed plugs on a modded car before.

[Roki187]

I would personally ask who's ever tune you’re running on the gap and such. And also at least inspecting them is a great idea, don’t let any fuckstick tell you otherwise.
Spark plug is much cheaper than a motor and it can reveal potential issues so....

I’m running ngk 97506 and noticed the idle being quite a bit smoother and maybe a little up top (running pure 1/meth)
You will need a special socket to remove the plugs. Other wise it’s pretty easy

Hope this helps

[bmw22915]

Originally Posted by Tatu_F32

Hello! Iv been calling around to install new spark plugs on my 440 some shops told me not to do it as the car is to new?? I have a 2017 440i with 23k miles. Mods are Dinan tune, catless dp, awe midpipe, muffler delete, and bms intake. I bought the 2 step colder spark plugs. Should i be worried about installing these spark plugs? I would assume there is no risk as they are just spark plugs and recommended for modified n55's and b58's. The one step colder plugs arent recommended for b58 so i went 2 step. Also what should i gap them at? Never changed plugs on a modded car before.

Wowza. Catless dp, AWE midpipe, and a muffler delete. Oh my ears

[TatuBuilt]

Originally Posted by Roki187

I would personally ask who's ever tune you’re running on the gap and such. And also at least inspecting them is a great idea, don’t let any fuckstick tell you otherwise.
Spark plug is much cheaper than a motor and it can reveal potential issues so....

I’m running ngk 97506 and noticed the idle being quite a bit smoother and maybe a little up top (running pure 1/meth)
You will need a special socket to remove the plugs. Other wise it’s pretty easy

Hope this helps

Thanks! those are the exact spark plugs im talking about haha. Im just gonna go ahead and install them and set the gap at what is recommended. I believe it was 0.020 Should solve my misfire issue

[TatuBuilt]

Originally Posted by bmw22915

Wowza. Catless dp, AWE midpipe, and a muffler delete. Oh my ears

Its very loud but it sounds amazing haha. Back fires like a ftype. Sounds like jet engine from the turbo and the exhaust note sounds like n55 but way louder and growlier.

[Polo08816]

Originally Posted by Tatu_F32

Hello! Iv been calling around to install new spark plugs on my 440 some shops told me not to do it as the car is to new?? I have a 2017 440i with 23k miles. Mods are Dinan tune, catless dp, awe midpipe, muffler delete, and bms intake. I bought the 2 step colder spark plugs. Should i be worried about installing these spark plugs? I would assume there is no risk as they are just spark plugs and recommended for modified n55's and b58's. The one step colder plugs arent recommended for b58 so i went 2 step. Also what should i gap them at? Never changed plugs on a modded car before.

More power/torque usually requires a bit more torque than the factory spec to make sure your spark plugs don't come flying out when you're wide open throttle.

I'd recommend tackling this job with a 1/2" impact wrench and two reducers (1/2 to 3/8 and 3/8 to 1/4) for your spark plug socket.

[F32Fleet]

Originally Posted by Tatu_F32

Hello! Iv been calling around to install new spark plugs on my 440 some shops told me not to do it as the car is to new?? I have a 2017 440i with 23k miles. Mods are Dinan tune, catless dp, awe midpipe, muffler delete, and bms intake. I bought the 2 step colder spark plugs. Should i be worried about installing these spark plugs? I would assume there is no risk as they are just spark plugs and recommended for modified n55's and b58's. The one step colder plugs arent recommended for b58 so i went 2 step. Also what should i gap them at? Never changed plugs on a modded car before.

The EPA will capture your login info and be contacting you shortly.

[Roki187]

Originally Posted by F32Fleet

The EPA will capture your login info and be contacting you shortly.

[insanecoder]

Originally Posted by Tatu_F32

Hello! Iv been calling around to install new spark plugs on my 440 some shops told me not to do it as the car is to new?? I have a 2017 440i with 23k miles. Mods are Dinan tune, catless dp, awe midpipe, muffler delete, and bms intake. I bought the 2 step colder spark plugs. Should i be worried about installing these spark plugs? I would assume there is no risk as they are just spark plugs and recommended for modified n55's and b58's. The one step colder plugs arent recommended for b58 so i went 2 step. Also what should i gap them at? Never changed plugs on a modded car before.

The B58 is already using a step colder plugs than N55..
2 steps colder than stock B58 spark plugs?
I cant even get one step colder plugs than stock B58 and you somehow got 2 steps colder?
Send me the part#..

[Roki187]

Originally Posted by insanecoder

The B58 is already using a step colder plugs than N55..
2 steps colder than stock B58 spark plugs?
I cant even get one step colder plugs than stock B58 and you somehow got 2 steps colder?
Send me the part#..

NGK 97506

[NormanConquest]

Originally Posted by F32Fleet

The EPA will capture your login info and be contacting you shortly.

Lmfao

[zcspec]

Originally Posted by Polo08816

More power/torque usually requires a bit more torque than the factory spec to make sure your spark plugs don't come flying out when you're wide open throttle.

I'd recommend tackling this job with a 1/2" impact wrench and two reducers (1/2 to 3/8 and 3/8 to 1/4) for your spark plug socket.

From personal experience, I will concur with Polo on torquing down the spark plugs higher than OEM. Just a few weeks back, my FBO N55 had a cylinder 6 injector failure. I returned my vehicle to OEM state and had the dealership correct the injector failure under warranty.

In the process of them scoping to determining what the issue was, the tech informed me that my plugs were removed with "hand-tight" effort. I do everything by the book when installing parts on my vehicles and was baffled to see the plugs loose. I clearly remembered following OEM plug torque specs. My FBO N55 may have inadvertently loosened the plugs with the power increase.

When replacing the plugs, take a few extra minutes and make sure everything is tight, then recheck again. Lesson learned!

[TatuBuilt]

Originally Posted by zcspec

From personal experience, I will concur with Polo on torquing down the spark plugs higher than OEM. Just a few weeks back, my FBO N55 had a cylinder 6 injector failure. I returned my vehicle to OEM state and had the dealership correct the injector failure under warranty.

In the process of them scoping to determining what the issue was, the tech informed me that my plugs were removed with "hand-tight" effort. I do everything by the book when installing parts on my vehicles and was baffled to see the plugs loose. I clearly remembered following OEM plug torque specs. My FBO N55 may have inadvertently loosened the plugs with the power increase.

When replacing the plugs, take a few extra minutes and make sure everything is tight, then recheck again. Lesson learned!

Im probably gonna go to a shop tomorrow and have them do it since i dont have the tool and need this done asap for a rally on saturday. Ill make sure they double check though. Thanks a lot!

[TatuBuilt]

Originally Posted by Roki187

NGK 97506

Yeah its on burger tuning's website

[TatuBuilt]

Originally Posted by F32Fleet

The EPA will capture your login info and be contacting you shortly.

LOL

[Bullitt1841]

Originally Posted by Polo08816

More power/torque usually requires a bit more torque than the factory spec to make sure your spark plugs don't come flying out when you're wide open throttle.

I'd recommend tackling this job with a 1/2" impact wrench and two reducers (1/2 to 3/8 and 3/8 to 1/4) for your spark plug socket.

What is the impact wrench for? I would never get one anywhere close to my spark plugs. Only a ratchet to remove and torque wrench to install. You're just asking for trouble with an impact wrench.

[insanecoder]

Originally Posted by Roki187

NGK 97506

these are heat range 8 which I think is stock heat range for B58 OEM plugs (I dont have the data in front of me)
but the OP indicated he got 2 steps colder than this.. which would be gulp 10

[Roki187]

Originally Posted by insanecoder

these are heat range 8 which I think is stock heat range for B58 OEM plugs (I dont have the data in front of me)
but the OP indicated he got 2 steps colder than this.. which would be gulp 10

Well im running those and it’s running amazing!!! Pure1/meth/x98 combo
Much smoother over stock

[TatuBuilt]

Originally Posted by Roki187

Well im running those and it’s running amazing!!! Pure1/meth/x98 combo
Much smoother over stock

They'd still be ok to run on mine? Im on pump gas with just a catless straight pipe, intake,tune

[Roki187]

Originally Posted by Tatu_F32

They'd still be ok to run on mine? Im on pump gas with just a catless straight pipe, intake,tune

Don’t think you need to go 2 steps colder. If you’re running straight pump gas I’m not sure there is a need for new plugs. Inspect them maybe and replace with oem

[JayDD007]

Originally Posted by Polo08816

More power/torque usually requires a bit more torque than the factory spec to make sure your spark plugs don't come flying out when you're wide open throttle.

I'd recommend tackling this job with a 1/2" impact wrench and two reducers (1/2 to 3/8 and 3/8 to 1/4) for your spark plug socket.

People are taking this post way to seriously and its concerning me lol please no one use an impact wrench on your poor spark plugs. I'm also not sure where you found a 1/4 drive spark plug socket...

[Chicken_Joe]

Originally Posted by bmw22915

Wowza. Catless dp, AWE midpipe, and a muffler delete. Oh my ears

It's really not that bad lol just drones a lot