Description
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 major factors in ultimately producing a more potent intake, they are not the only variables in creating a more efficient design. 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, Dinan engineers focused their attention on the intake pipe itself where numerous improvements could be made. In the 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, completely seals for maximum insulation from power-robbing heat
- Increased Filter Area: 34% increase (stock: 76.3in², Dinan: 102.1in²) for optimum flow
- Optimized Carbon Fiber Intake Tube
- Free-Flowing Injection Molded Air Mass Meter Housing: Over 20% larger than stock
- Quick and Easy Installation
About Dinan
Dinan knows European marques – quite literally – from the inside out. Whether you need hard parts such as exhaust systems or coilovers, or ECU upgrades to unlock your engine's potential, Dinan has the parts to take your BMW, Mercedes-Benz, or Mini to the next level.
Specs
- Air Box Included: Yes
- Brand: Dinan
- Dinan Point Value: 3
- Emission Code: 7
- Height: 10 inches
- Labor Time: 1 hour
- Length: 24 inches
- Max HP Gain: 6 @ 5000 RPM
- Max Torque (lb-ft) Gain: 6 @ 5000 RPM
- Product Type: Cold Air Intake
- Sale Category: Air and Fuel Delivery
- Weight: 8 pounds
- Width: 18 inches
- UPC: 813725025131
- Part Number: D760-0048
Service Part
Dinan Replacement Filter for High Flow Carbon Fiber Intake - 2016-2020 BMW 230i/M240i/330i/340i/430i/440i
Part Number: D401-0025
Price: $77.85
Emissions
This part is legal under the provisions of EPA’s Tampering Policy dated November 23rd, 2020. The company has a reasonable basis (test results) to verify that this product allows the vehicle to operate within legal emissions standards and is therefore legal to be sold for on-street use in all states that accept the legal provisions of the Clean Air Act and the EPA Tampering Policy. This product is NOT LEGAL FOR SALE OR USE IN THE STATE OF CALIFORNIA. Testing with the California Air Resources Board to achieve 50-state compliance is pending with CARB. Once testing is complete with California, and an E.O. number is issued, this product will be updated to 50-state legal status.
