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Description
Dinan Carbon Fiber Cold Air Intake for BMW F22 F23 230i F30 F31 F34 330i F32 F33Overview: "Following in the footsteps of its big brother on the B58 engine, the 4 cylinder intake takes the same path to success. Improve upon the factory design by increasing flow via a larger airbox and filter element thereby improving throttle response and lessening the strain on the turbocharger for maximum efficiency. While box and filter enlargement and redesign are a major factor in ultimately producing a more potent intake they are not the
Overview:
"Following in the footsteps of its big brother on the B58 engine, the 4 cylinder intake takes the same path to success. Improve upon the factory design by increasing flow via a larger airbox and filter element thereby improving throttle response and lessening the strain on the turbocharger for maximum efficiency. While box and filter enlargement and redesign are a major factor in ultimately producing a more potent intake they are not the only variables in creating a more efficient design either. The devil is in the details which is where Dinan thrives. Coupled with maintaining Dinan's standard practice of utilizing a sealed system to ensure as much cold, outside air as possible is employed Dinan engineers focused their attention on the intake pipe itself where numerous improvements could be made. In factory configuration, the intake tube comes complete with baffling and a small Helmholtz chamber to reduce unwanted sound. As a byproduct, these features also cause a more turbulent airflow path which robs the factory system of potential power. These two specific details are diametrically opposed to our intended market's desires so the removal of these features was paramount. Through numerous iterations, a carbon fiber intake tube was developed that eliminated flow disruptions and allowed the natural sound of an unimpeded intake tract to sing. All told this thorough methodology of design allows the Dinan carbon fiber cold air intake for the B46/B48 engine to elicit gains of 6 HP and 6 TRQ at 5000 RPM on a completely stock vehicle. An impressive feat on today's turbocharged engines.
Features:
- More Power: + 6 HP @ 5000 RPM & + 6 lb-ft @ 5000 RPM (+ 5 WHP & + 5 WTQ) without additional modifications
- Sportier Sound
- Improved throttle response
- Larger volume air box (30% larger than stock) that completely seals for maximum insulation from power robbing heat
- 34% increase in filter area (stock: 76.3in², Dinan: 102.1in²) for optimum flow
- Optimized carbon fiber intake tube
- Free flowing injection molded Air Mass Meter housing (ove 20% larger then stock)
- Quick and easy installation
Application:
| Year | Make | Model | Submodel | Engine Size |
|---|---|---|---|---|
| Universal |
Specs:
| Air Box Included | Yes |
|---|---|
| Brand | Dinan |
| Dinan Point Value | 3 |
| Emission Code | 4 |
| Height | 10 |
| Labor Time (Hours) | 1 |
| Length | 24 |
| Max HP Gain | 6 @ 5000 RPM |
| Max Torque (lb-ft) Gain | 6 @ 5000 RPM |
| Product Type | Cold Air Intake |
| Warning | California Proposition 65 |
| Weight | 8 |
| Width | 18 |
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- Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
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4.2 ★★★★★
Based on 9 reviews
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Product Reviews
★★★★★ 4
Great starter speakers - for the right price.
Size: Pair
A good all-around pair of starter speakers if you're planning on using them as standalones. These will have zero trouble filling a small to medium sized space with rich and detailed sound at low to mid volumes. The bass is adequate for their size. They're not going to knock your socks off on more thumpy genres. I would imagine pairing them with a subwoofer would make quite the difference but for rock and some synth pop, they're pretty sweet. Plus the copper woofers look very striking without the faceplates.
That said, I say these are best suited at low to mid volumes because cranked, the higher frequencies can be awfully fatiguing coming out of these speakers. I would not pay anywhere close to the $349 MSRP for these (you can probably find a pair of far superior RP-600Ms for around that price nowadays). Around $150 seems like a sweet spot for the R-51Ms, but the Sony SSCS5s and Fluance Signature bookshelfs are very comparable, if not better sounding for around the same price. Still, these will probably more than satisfactory if you're not expecting to be blown away by them.
UPDATE 5/20/25:
Can confirm that the subwoofer made a big difference. I was going to retire these since I replaced them with some bigger floor speakers on my main setup but I decided to try them out in place of the factory speakers on the Klipsch ProMedia 2.1 I have hooked up to my computer. Not only does the onboard amp seem to drive them okay at not-insane levels of volume - they sound really sweet paired with the 6.5-inch subwoofer. While I won't change my rating, I do highly recommend getting a sub along with these speakers.
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Reviewed in the United States on April 11, 2025
★★★★★ 5
Great speakers, rich full sound
Size: Pair
These are really great speakers. I got them to go with my husband's new record player for Christmas. These really sound fantastic. A rich range, with a nice bass that's not too much. They were easy to connect to the player. I like a rich sound better then bright (I think if it's too bright it doesn't have enough bass), and these definitely fit the bill. I got these on a black Friday deal which was even better. They are a good value for the quality.
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Reviewed in the United States on January 9, 2026
★★★★★ 5
The new amp/speaker configuration made a very noticeably positive difference.
Size: Pair, Size: Pair
I bought a Denton amp / Klipsch 7 speaker bundle for Christmas last year. It sounded impressive. For this year, I recently replace the Denon AVR-S970H, a 5.2.2 POS-Amp that quit after less than a year. Then I also added a 70” TV and a set of R-51M’s on the sides. I could never hear this amp driving the Dolby Atmos speakers on top of the R-625FA towers, so I decided that back speakers would be more beneficial to this 7-channel system. I’d been using the R-41M’s that came in the bundle as side surround speakers, but I was thinking that they would be more suited for use in back. So I replaced them with a new set of R-51M’s that I thought would be better surround sides because of their fuller stronger sound. As of now, at the front of this theater system is an Onkyo TX-RZ 820 AVR amp, a 70 inch LED 4K smart TV, a set of Klipsch R-625FA towers, an R-52C Center Channel Speaker, and two R-12SW Subwoofers. For the surround sides is the newly purchased set of R-51M’s on stands, and mounted on the back-wall is the set of R-41M’s, using BS-218pro Wall Mounts. For good reason, this is a very powerful amp driving a complete set of purely Klipsch speakers. I built this THX 7.2.0 surround sound system to go in my wife’s 11’ X 12’ privacy room, specifically because she is hard of hearing. She said, that with the new additions, the sound is much cleaner, stronger, the 3D surround effect is more noticeable, and the vocals are easier for her to understand. I get to use it sometimes when she’s not at home. Thunder in movies sounds as crisp sharp and loud as real thunder. All around, the system is very realistic sounding. And it can play music, shaking the house at live levels. At present, my wife and I are extremely happy with this system. It sounds as good as it looks. The Klipsch speakers & Onkyo amp configuration makes a very noticeably positive difference.
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Reviewed in the United States on January 5, 2026
★★★★★ 5
Quality shrink tubing.
Size: 4.8mm (3/16") - 26Ft, Color: Black
This seems to be solid quality shrink tubing, shrinks well, and holds firmly. I have used it for a few projects so far and am happy with how it has performed. The package is larger than I expected, but keeps the tubing from being damaged from bends/kinks.
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Reviewed in the United States on February 7, 2026
★★★★★ 5
Amazing shrinking polymer technology= my growing review.
Size: 12.7mm (1/2") - 13Ft, Color: Black, Size: 12.7mm (1/2") - 13Ft, Color: Black
I recently tried out the TKDMR Heat Shrink Tubing, and it has proven to be a game-changer in my cable management endeavors! As an OCD handyman who values organization and neatness, I was on the lookout for a reliable solution to streamline my cable/wire setups, and this product exceeded my expectations in everyway.
*Ease of shrink (5/5):*
One of the best features of the heat shrink tubing is its ease of application. The tubing is remarkably pliable, easy to cut and straightforward to work with. The simple process involves sliding the tubing over the cable and applying heat, whether from a heat gun, lighter or even a hairdryer! The tubing quickly shrinks snugly around the cable, providing a tight and professional-looking finish. Even for those new to DIY cable management, the learning curve is minimal.
*Versatility (5/5):*
I was pleasantly surprised by the versatility of this heat shrink tubing. It accommodated various cable sizes and shapes, making it a versatile solution for a range of applications. Whether dealing with computer cables, audio cords, electrical box wiring or even small electronic components, the tubing adapted to the different sizes seamlessly. The only slight drawback is that extreme size differences between cables might require different tubing sizes for an optimal fit, This tubing is rather large, but shrinks very small when done carefully. I have fixed many action figures and dinosaurs' broken arms to the delight of my son!
*Durability (5/5):*
Once applied, the heat shrink tubing forms a durable and resilient layer around the cables. It provides an added layer of thick protection against water, wear/tear, etc. safeguarding cables from potential damage due to friction, bending, or exposure. This durability is incredibly beneficial for long-term use and in environments where cables may be subject to constant movement or handling. Especially useful for reinforcing phone charging cords! I'm looking at you cheap apple cords.
*Looks (5/5):*
Beyond its practical usage, TKDMR Heat Shrink Tubing significantly enhances the aesthetics of cable management. The tubing creates a sleek and uniform appearance, concealing multiple cables into a tidy bundle. The matte finish looks professional and modern, elevating the overall visual appeal of any setup. It's a small detail that makes a big difference, especially for those who value a clean and organized workspace, or computer cable management!
*Value for your hard earned Money (5/5):*
Considering the improvement it brings to cable management and the quality of the product, this Heat Shrink Tubing offers excellent value for money. The quantity provided in each package is generous, ( a little goes a long way) and the overall durability ensures that one application will last for years. While the initial cost may be slightly higher than alternative cable management solutions like zip ties etc., the long-term protection benefits make it a worthwhile investment.
*Overall Impressions:*
TKDMR Heat Shrink Tubing has proven to be a highly effective and reliable solution for many purposes. Its ease of shrink, versatility, durability, and aesthetic enhancements make it a awesome product in the market. Whether you're a tech enthusiast, DIY enthusiast, or just someone looking to tidy up your living or working space, this heat shrink tubing is a must-have! Not to mention the satisfying process of shrinking tubes onto wires.
I recommend this heat shrink tubing to anyone seeking a practical and visually pleasing solution for cable organization/wiring maintenance!
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Reviewed in the United States on December 8, 2023