Turner CSL style airbox, pros and cons?

[Chas3n]

I've been running one for the last 4 years. There have been no issues with it. I understand now that ECS has had issues, but I haven't experienced any since October of 20 when I installed mine, and I drive my car very hard every time its taken out of the garage.

[fattycharged]

This is why I have a hard time moving away from the franken box I have… glass fiber and the “bark” is better than any cf box I've had the chance to witness.


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[discoelk]

Karb quality gets no complaints and they stand behind their products. The strong US dollar makes it cheaper now than ever.

Even if Turner/ecs have fixed the issues, I truly don't understand why you'd buy it over Karb. It's not really that much cheaper than the Karb race box.

[Slideways]

I've had the TMS box on my car for probably 2 years now and won't be getting rid of it anytime soon, but I don't love it.

spent a few years in Germany and got a few dozen laps riding in real CSL's around the ring as well as countless hours listening to them from the sidelines. I've had S14 motors with DTM airboxes, prototyped the S38 carbon airbox and have had 3 carbon airboxes on euro S50 powerplants... I'm hooked by the noise to say the least. To me, the Turner airbox on my car is missing that special bark. The fit and finish is good, the filter fits well, my bottom pins have lasted 12-15 removal/installations, but it just doesn't sound right. Besides the airbox, I have ebay headers, Rogue Engineering Rasp-x form Bimmerworld and OE CSL section 2 & section 3. I'm not sure if it's the big opening that removes some of the honk sounds or a different thickness in the airbox walls that dampens the sounds, but it doesn't have the same sound.

Also, it rubs on the RE strut brace and is a pain to wiggle in/out and the car drones a bit at cruising speeds

If I were to do it again, I'd go Karbonus with a working flap.

It's the thickness. The noise is not far off, but it does sound a little more cold air intake-like rather than the brutal CSL bark.

[YoungDinosaur]

Ugh, this is the first review that I’ve read that is really making me consider that the discount isn’t worth it. Darn you! 🤣

[S14]

I've had the TMS box on my car for probably 2 years now and won't be getting rid of it anytime soon, but I don't love it.

spent a few years in Germany and got a few dozen laps riding in real CSL's around the ring as well as countless hours listening to them from the sidelines. I've had S14 motors with DTM airboxes, prototyped the S38 carbon airbox and have had 3 carbon airboxes on euro S50 powerplants... I'm hooked by the noise to say the least. To me, the Turner airbox on my car is missing that special bark. The fit and finish is good, the filter fits well, my bottom pins have lasted 12-15 removal/installations, but it just doesn't sound right. Besides the airbox, I have ebay headers, Rogue Engineering Rasp-x form Bimmerworld and OE CSL section 2 & section 3. I'm not sure if it's the big opening that removes some of the honk sounds or a different thickness in the airbox walls that dampens the sounds, but it doesn't have the same sound.

Also, it rubs on the RE strut brace and is a pain to wiggle in/out and the car drones a bit at cruising speeds

If I were to do it again, I'd go Karbonus with a working flap.

[Pklauser]

The group buy is definitely a good discount. The challenge is you're still paying $1500, a lot of money to not be totally happy with the outcome. Karb is what, $2200?

My brain is telling me "buy once cry once", but we'll see if I get impulsive in the last days of the GB.

[YoungDinosaur]

I too am on the fence about a CSL air box. I want it but it seems crazy that this will cost about 10%+ of the car’s value. Although I hope it will fix two major issues I have with the car is lack of sound and lack of power. (I’m in Denver so I’m down 60hp at the start of the hills).

[Advorsor]

Haimus.

[eljay]

Geoff Steel airbox includes a snorkel too for about US$300 more than the TMS box GB price. I know the finish is racecar quality and apparently, one needs to drill holes upon installation, but I'm contemplating that as an alternative to TMS box if not going with Karbonius.

[eljay]

For the Turner airbox, most people tend to leave it as is. I have seen a few track cars run a dual brake duct tubing into the mouth of the intake, but it is very race car and doesn't look good. If you are planning on running a CSL bumper with the primary intake duct, get an airbox that can accept the snorkel piece. You'll be able to take advantage of the ram air effect by having the bumper and primary intake duct.

Well, I'd love to, but the cost of Karbonius box plus snorkel plus accessories seems too far for me.

[Slideways]

Does anyone here have a CSL bumper and the Turner box? Did you just leave it as is, or fabricated some ducting from the CSL bumper opening?
I'm considering getting this box, but I also plan to get a CSL replica bumper at some point, which the savings vs Karbonius would help me get.

For the Turner airbox, most people tend to leave it as is. I have seen a few track cars run a dual brake duct tubing into the mouth of the intake, but it is very race car and doesn't look good. If you are planning on running a CSL bumper with the primary intake duct, get an airbox that can accept the snorkel piece. You'll be able to take advantage of the ram air effect by having the bumper and primary intake duct.

[DJAM3]

I have a Karbonius race airbox but I use the CSL intake tube that would normally connect to the snorkel.

[eljay]

Does anyone here have a CSL bumper and the Turner box? Did you just leave it as is, or fabricated some ducting from the CSL bumper opening?
I'm considering getting this box, but I also plan to get a CSL replica bumper at some point, which the savings vs Karbonius would help me get.

[Slideways]

There is one going around on Facebook - I saw it in a group called E46 M3 Owners

Here