Karbonius Carbon Fibre Stock S54 Plenum

[TeddybearCup]

1. Make sure the "wishbone" that the rubber isolators rest on is in place correctly. Not rotated or bent upward/downward. In my experience that has always been the culprit when I can't get the boots on. Other suggestion in to tilt the airbox up on the filter side and make sure the tops of all the boots are in place, then rotate down and push towards the engine at the same time. Might take some wiggling to get all the boots fully seated.

2. That bottom port on my karb airbox was a bit too long and the connector also wouldn't stay clipped in, even though mine has all four clips intact. Had to file it down to get it to stay.

The port for the vacuum line coming from the brake booster also was too long. Had to dremel some material off of that too.

Thanks for the tips! I wouldn't have thought to shave down! I'll have a new hose coming to have intact clips and will make it easier to fit.

Wishbone I've definitely bent in the OEM removal and the lower hose finangling. Does mean there's basically now way I can get this done by Thursday sadly.

[heinzboehmer]

Ugh, two roadblocks, I can't get all the boots on at the same time, and the little hose at the bottom of the plenum, near the engine, has two clips broken and keeps popping out when I'm moving the intake around. Calling it a night. So fucking close.

1. Make sure the "wishbone" that the rubber isolators rest on is in place correctly. Not rotated or bent upward/downward. In my experience that has always been the culprit when I can't get the boots on. Other suggestion in to tilt the airbox up on the filter side and make sure the tops of all the boots are in place, then rotate down and push towards the engine at the same time. Might take some wiggling to get all the boots fully seated.

2. That bottom port on my karb airbox was a bit too long and the connector also wouldn't stay clipped in, even though mine has all four clips intact. Had to file it down to get it to stay.

The port for the vacuum line coming from the brake booster also was too long. Had to dremel some material off of that too.

[TeddybearCup]

Ugh, two roadblocks, I can't get all the boots on at the same time, and the little hose at the bottom of the plenum, near the engine, has two clips broken and keeps popping out when I'm moving the intake around. Calling it a night. So fucking close.

[heinzboehmer]

I'll wait and see how everyone else goes with the CSL reservoir bracket lol. I remember on the old forums someone had come up with bracket that didn't need drilling but can't find anything.

Found this: https://nam3forum.com/forums/forum/m...tting-too-high

[E46 M3]

I'll wait and see how everyone else goes with the CSL reservoir bracket lol. I remember on the old forums someone had come up with bracket that didn't need drilling but can't find anything.

[TeddybearCup]

DHL finally delivering today! Will hopefully have the car up and running by the evening. Biggest fear is if I tear intake boots and need new ones and if I somehow fuck up the SMG expansion tank relocation.
The car is on the K&N intake right now.

[///MBan]

Very much looking forward to impressions here. I had the full Karb CSL box previously, but had major headaches/problems with the CSL DME coding and MAP. The idea of keeping MAF in place but still getting some good sounds definitely intrigues me - curious how much sound comes from the box itself being CF versus the massive inlet on the CSL box.

A zpost member already has his installed and with an Eventuri as well he says it's pretty much the same as the full CSL box (see the link I posted above). Previously Karbonius provided some video which showed the new carbon plenum with the stock airbox in place was not as loud as the CSL intake, but that's not really surprising.

[EYEHAVEYOU]

Very much looking forward to impressions here. I had the full Karb CSL box previously, but had major headaches/problems with the CSL DME coding and MAP. The idea of keeping MAF in place but still getting some good sounds definitely intrigues me - curious how much sound comes from the box itself being CF versus the massive inlet on the CSL box.

[TeddybearCup]

I'll be doing this when I get mine fitted. I just found out I need to order the CSL crankcase hose... hopefully that arrives before next weekend!

I realized I could just use 3/4" ID hose! So I'm going that route. All the CSL hoses I could find don't ship until mid next week.
BUT DHL said it would deliver today and...sadly it's not here yet. I did have to pay them $50 for customs last night, so maybe customs payment slowed down the delivery process. Or maybe because today was Veteran's Day.
Even got rivnuts and a tool for them same-day shipped over Amazon.

[maupineda]

Unboxed and sticker added. Too bad the car is not with me to install it... It will be next weekend

[///MBan]

No driving videos and sound under load with microphone inside the cabin.. reviving a parked car is not really a good reference

I'll be doing this when I get mine fitted. I just found out I need to order the CSL crankcase hose... hopefully that arrives before next weekend!

[heinzboehmer]

Can I ask how the SMG fluid expansion is attached?

Need to bolt/weld to the strut tower. Pics in this thread: https://forums.m3cutters.co.uk/threa...project.33785/

Rivnuts sounds like a good option, but haven't needed to do it myself, so haven't checked for clearance.

[TeddybearCup]

Can I ask how the SMG fluid expansion is attached?

I'm going to be figuring that out. I don't see any bolts or holes I can use so I think I have to drill into the shock tower face.

Also, didn't realize I need the CSL breather hose, so gotta order that.

[PetrolM3]

Posts 63, 80, 83 above provide some prelim clips and comparisons.

Sent from my SM-G950U using Tapatalk

No driving videos and sound under load with microphone inside the cabin.. reviving a parked car is not really a good reference

[E46 M3]

Supposedly mine is coming tomorrow. Currently working on swapping the front O2 sensors and cursing that they are deep in there, but should be ready to move on to installing this over the weekend.
Have the CSL SMG fluid expansion tank and bracket here and ready too.

Can I ask how the SMG fluid expansion is attached?