[Brett_C_F30_G42]

Hey guys,

Check this out! I ordered a rear seat delete from Stern Performance Parts in Germany and here’s what it looks like! Pretty sure I’m the first in the US to have this but correct me if I’m wrong! It’s just the net though. I did two orders:

1. Rear Seat Delete Net V1
2. Rear Seat Delete Net V2 + Carpet

In the photo below, you can see the Rear Seat Delete Net (V1) in red. There is no carpet along the bottom. You can currently order this from Stern Performance Parts on their website.

Not shown, I special ordered the Rear Seat Delete Net (V2) with a carpet. It’s still the same red net but with Carbon Fibre Strut Bars on the top and bottom on the net plus a carpet to make it look clean.

If you guys have any questions let me know! Here’s the link if you want to order the V1:
https://sternperformance.de/en/home/...m240i-g42.html

Photos:

[MPR]

But why

[Brett_C_F30_G42]

Originally Posted by MPR

But why

Tracking. Saves 55lbs of weight (or ~22kg). And I’m getting lightweight wheels too to make myself as light as possible.
My next track day is next Friday at Homestead-Miami Speedway and I’ll make another post on how that session goes.

[Humdizzle]

i've thought about doing it to my m2c. its my daily but we never use the back seats. how is the noise ? usually when you fold back seats down the trunk turns into a speaker and you get extra road noise.

[Brett_C_F30_G42]

Originally Posted by Humdizzle

i've thought about doing it to my m2c. its my daily but we never use the back seats. how is the noise ? usually when you fold back seats down the trunk turns into a speaker and you get extra road noise.

Noise is good. You can hear the exhaust really well through there and I think it gives the car a great small sound boost as well.

[PNTDG42]

There’s at least 2 if not 4 airbags back there you could pull if you plan to leave the back seats out indefinitely. Though you’d need to figure out what resistors you need to keep the light off. I saved about 15# in my GTR removing all the carpet and sound deadening in the trunk. Left the back seat in though. I’ve taken over 200lb from that car without gutting anything besides the trunk what I found was the best bang for your buck in weight reduction is a lithium battery (18.5# in that car but I bet over 30# reduction for the G42) and 1 piece bucket seats (just under 90# reduction). My G42 will stay a heavy pig though 😂

[MPR]

Is 55lbs doing anything for a ~4000 lb car though?

[heelsmj]

[QUOTE="Brett_C_F30_G42;29993075"]Tracking. Saves 55lbs of weight (or ~22kg). And I’m getting lightweight wheels too to make myself as light as possible.
My next track day is next Friday at Homestead-Miami Speedway and I’ll make another post on how that session goes.

Supra? to each his own but this is just odd. This isnt even a “real” M car. This is not meant to be hard core track car. If

[PNTDG42]

Originally Posted by MPR

Is 55lbs doing anything for a ~4000 lb car though?

Stock:
Assume weight of 3875#
Assume engine at 400HP.
0.1032 HP per #
or 9.6875 # per HP

Stock but remove 55#:
Assume weight of 3820#
Assume engine at 400HP.
0.1047 HP per #
or 9.5500 # per HP

Stock but add 5HP:
Assume weight of 3875#
Assume engine at 405HP.
0.1045 HP per #
or 9.5679 # per HP

So its about equivalent to adding 5HP, but not just at peak but every RPM. Will you feel it? Nope. 55# in weight reduction alone is about equivalent to an intake... you will hear a difference but you wont feel anything

But the way it effects your power/weight is pretty exponential as you add more power and further reduce the weight. But this only makes sense if you continue to mod.. to just take an otherwise stock G42 and remove the back seat, ya pointless.

55# is about 1.4% the weight of the car though. Cumulatively, that has got to add up right. If you were running consistent laps around a decent length track, that might show up.

[Brett_C_F30_G42]

Originally Posted by PNTDG42

There’s at least 2 if not 4 airbags back there you could pull if you plan to leave the back seats out indefinitely. Though you’d need to figure out what resistors you need to keep the light off. I saved about 15# in my GTR removing all the carpet and sound deadening in the trunk. Left the back seat in though. I’ve taken over 200lb from that car without gutting anything besides the trunk what I found was the best bang for your buck in weight reduction is a lithium battery (18.5# in that car but I bet over 30# reduction for the G42) and 1 piece bucket seats (just under 90# reduction). My G42 will stay a heavy pig though 😂

To me it makes a difference especially when going into tight turns. It’s not about fault driving. This is about tracking and getting the fastest times possible. This is exactly what I need along with other things to reduce weight. I left the airbags in because I didn’t want to have to code the ECU to have the airbag light off indefinitely lol

[Brett_C_F30_G42]

Originally Posted by MPR

Is 55lbs doing anything for a ~4000 lb car though?

Absolutely. But the difference is not notificabke with regular driving. It’s a traction upgrade. With it, cornering is slightly better an gives me that advantage.
If you were gonna do this for everyday I would say don’t do it but if you were looking for a track-focused car, I would say to do it.

[Brett_C_F30_G42]

[QUOTE=heelsmj;29993211]

Originally Posted by Brett_C_F30_G42

Tracking. Saves 55lbs of weight (or ~22kg). And I’m getting lightweight wheels too to make myself as light as possible.
My next track day is next Friday at Homestead-Miami Speedway and I’ll make another post on how that session goes.

Supra? to each his own but this is just odd. This isnt even a “real” M car. This is not meant to be hard core track car. If

I’ve gotten that a lot. But when I brought up switching to let’s say an M5, everyone kept saying to keep what I have. It’s so much lighter than an M5 and if I’m planning to go all the way, the better track car would be the my G42. It’s not about having a “full” M-car. If I really wanted to could get a M2, M3, M4, etc. But I’m planning to go 1000+ hp in this car long term and making this a full track car. That combined with other modifications it’s better to take tracking.

[Brett_C_F30_G42]

Originally Posted by PNTDG42

Stock:
Assume weight of 3875#
Assume engine at 400HP.
0.1032 HP per #
or 9.6875 # per HP

Stock but remove 55#:
Assume weight of 3820#
Assume engine at 400HP.
0.1047 HP per #
or 9.5500 # per HP

Stock but add 5HP:
Assume weight of 3875#
Assume engine at 405HP.
0.1045 HP per #
or 9.5679 # per HP

So its about equivalent to adding 5HP, but not just at peak but every RPM. Will you feel it? Nope. 55# in weight reduction alone is about equivalent to an intake... you will hear a difference but you wont feel anything

But the way it effects your power/weight is pretty exponential as you add more power and further reduce the weight. But this only makes sense if you continue to mod.. to just take an otherwise stock G42 and remove the back seat, ya pointless.

55# is about 1.4% the weight of the car though. Cumulatively, that has got to add up right. If you were running consistent laps around a decent length track, that might show up.

I’m planning to be a full track car. 1000+ hp and fastest track times possible. It’s not noticeable daily driving and I wouldn’t have done it if that were the case. It’s a track-focused upgrade and you really start to feel it when going into turns. It’s all about shaving as much time as possible on that track.

[heelsmj]

Originally Posted by Brett_C_F30_G42

I’ve gotten that a lot. But when I brought up switching to let’s say an M5, everyone kept saying to keep what I have. It’s so much lighter than an M5 and if I’m planning to go all the way, the better track car would be the my G42. It’s not about having a “full” M-car. If I really wanted to could get a M2, M3, M4, etc. But I’m planning to go 1000+ hp in this car long term and making this a full track car. That combined with other modifications it’s better to take tracking.

Well I would love to see this car with 1000 HP! Keep posting here! I live in south Florida. Maybe we will run into each other at Homestead.

[Brett_C_F30_G42]

Originally Posted by heelsmj

Well I would love to see this car with 1000 HP! Keep posting here! I live in south Florida. Maybe we will run into each other at Homestead.

Absolutely! If you ever want to track, I run with Performance Driving Group (and sometimes Chin). I’m going next Friday so if you want to sign up here you go!:
https://performancedrivinggroup.com/events/
I run every two months or so at either Sebring or Homestead-Miami. Even if you don’t track you can chill there with the rest of us. I’ll be there with some people from Miami Bimmer Club so it’ll be fun.

[heelsmj]

Originally Posted by Brett_C_F30_G42

Absolutely! If you ever want to track, I run with Performance Driving Group (and sometimes Chin). I’m going next Friday so if you want to sign up here you go!:
https://performancedrivinggroup.com/events/
I run every two months or so at either Sebring or Homestead-Miami. Even if you don’t track you can chill there with the rest of us. I’ll be there with some people from Miami Bimmer Club so it’ll be fun.

I am still waiting for my M240. Should be built in a couple of weeks. But maybe I’ll come with my M340. It’s pretty quick. JB4,charge/down pipe. Custom exhaust. Fridays are the worst night for me but I’ll try and make it up there. How do I join the Miami Bimmer club?

[Brett_C_F30_G42]

Originally Posted by heelsmj

I am still waiting for my M240. Should be built in a couple of weeks. But maybe I’ll come with my M340. It’s pretty quick. JB4,charge/down pipe. Custom exhaust. Fridays are the worst night for me but I’ll try and make it up there. How do I join the Miami Bimmer club?

It’s from 11am to 7pm so if you can make it definitely go. This is the only one on a Friday but the rest are usually on Saturdays.
As for Miami Bimmer Club (MBC), join our Facebook and Instagram!! Ask for our WhatsApp link and you’ll be added. We meet everyday third Thursday of the month. We’re all one big family and we have lots of contacts for everything you need. If you need for into lmk!

[heelsmj]

Originally Posted by Brett_C_F30_G42

It’s from 11am to 7pm so if you can make it definitely go. This is the only one on a Friday but the rest are usually on Saturdays.
As for Miami Bimmer Club (MBC), join our Facebook and Instagram!! Ask for our WhatsApp link and you’ll be added. We meet everyday third Thursday of the month. We’re all one big family and we have lots of contacts for everything you need. If you need for into lmk!

Thanks! Can you please just send me the WhatsApp link? I don’t do social media.

[NoDramaG42]

Hey OP, i am also interested in following the weight loss journey for our cars.

My goal is to eventually bring the weight down by 250 lbs or so.

What other items have you looked into?

[ninja_geezer]

Originally Posted by MPR

But why

you beat me to it lol....

[PJDK]

Do not order from Stern Performance Parts. Their service is the worst and they won't send out the goods you ordered.

[joseph.m240i]

Been waiting for five months already. Still waiting. They keep promising me the date and keep delaying it. Worst customer support ever. Buyers beware.