Engine cover Carbon | fits Audi RS6/RS7 (C8/4A/4K) | Eventuri

Facts:Performance increase - Stage 1 : 45-50hp, 49ft-lbsStage 1 Acceleration 100-200Km/h : Shortening by 0.6sPerformance increase - Stage 2 : 60-80hp, 60-70ft-lbsMaterial: CarbonManufacturer: EventuriExpert opinion: without The Audi C8 RS6 intake system is the result of extensive development, testing and prototyping. Our goal was to fulfill 2 main criteria:1) Increased flow rate.2) Uniform airflow.The first objective was achieved by utilizing the limited space in the engine bay of the RS6, which was severely restricted by the underside of the hood. Our solution was to completely redesign the entire airbox, maximizing the volume, increasing the airflow inlets and creating a more favorable filter angle to the turbos. We also dramatically enlarged the turbo inlets by up to 85% when measuring the cross-sectional area at the openings. The second objective was achieved by designing an organically shaped system with a specially rounded plate filter to ensure that the airflow path did not contain any sharp corners and therefore the flow remained laminar. With smooth transitions from the filter to the turbo inlets, our intake system minimizes the formation of turbulence, allowing the turbos to work more efficiently. Working with BMC, we have developed a bespoke filter element to ensure that the filter area is as large as possible while keeping the airflow clean.When all targets are met, our C8 RS6 intake system delivers on all fronts and allows the turbos to generate boost pressure more efficiently. This results in improved throttle response and significant power gains, which have been independently tested and increase with higher tuning levels. The measured power gains are a result of the complete system we have developed from the airbox base to the cover to the inlets. Dyno testsOur intake system has been independently tested both on the dyno and on the road. At higher tuning levels, the turbos require more air and so the standard airbox becomes a greater restriction. Here are some results from renowned tuners who have tested the intake system. STAGE 1 TESTSDyno tests were carried out by Awesome GTI in the UK on their own C8 RS6 fitted with an OPF exhaust and their own Stage 1 remap. The car was run 4 times in 4th gear with the stock airbox and then switched to the Eventuri whilst the car remained on the dyno. The car was then driven again 4 times in 4th gear. The tests were all carried out on the same day and no other changes were made. The graph below shows the highest power with the stock airbox compared to the highest power with the Eventuri intake. In both cases, these are the first dyno runs, with performance decreasing on subsequent dyno runs due to heat build-up. As can be seen below, the intake offers a significant increase in power across the entire rev range. The highlighted point shows the highest power increase in the 60 hp rpm range at the crankshaft. The resulting power increases are noticeable on the road, with better throttle response and improved acceleration times. STAGE 2 TESTSThe dyno tests on a Stage 2 RS6 were conducted by Eurocharged Canada on a car with aftermarket downpipes, intercoolers and their own Stage 2 remap. The values shown here are measured at the steering wheel. The car was run several times with the stock airbox and the Eventuri. The resulting figures are shown below after comparing the best stock and best Eventuri results. Again, we see a dramatic increase in performance and as this is stage 2, the stock airbox is an even bigger restriction. The highlighted dot shows the highest gain in the rev range of 79hp at the wheels. Compatible vehicles:VehicleVehicle typePowerEngine capacityEngine typeYear of construction Audi A6 (C8/4A)RS6 quattro441kW / 600hp463kW / 630hp3996cm³DJPB, DWLA, DYGBDYGA09.19 -01.23 - 10.23 Audi A7 (C8/4K)RS7 quattro441kW / 600hp463kW / 630hp3996cm³DJPB, DWLA, DYGBDYGA10.19 -01.23 -

The closed APR carbon intake system increases performance by optimising the air mass flow and at the same time offers perfect filtration. Facts:- Higher power and more torque- Better throttle response- Improved engine noise- Closed carbon fibre system- All fastening elements included- Pleated filter made from cotton gauze- Directional rotating vanes for correct loading of the filter The carbon fibre intake system is an attractive high performance upgrade for the 1.8T and 2.0T engines found in various vehicles on the MQB platform. The factory intake design has the foundation for excellent performance, but much of it is sacrificed in an effort to fulfil other design requirements. With requirements to support only factory power output, low noise levels and long service intervals, there is plenty of room for improvement. Expect more power and torque across the powerband with a more direct and responsive feel when operating the throttle. Engine and turbocharger noise will be improved and, depending on driving style, fuel consumption may even be reduced. In the endeavour to achieve an ideal pressure ratio (1:1) between inlet and outlet, the intake area has several important features. Through CFD optimisation and validation on the test bench, the filter housing of the intake section has been shaped into a spiral that uses the inertia of the air entering the system to increase the pressure on the outside of the filter. In this way, an even pressure distribution is achieved over the entire surface of the filter and not just at a few key points, maximising the utilisation of the filter area. Compared to many other common intake styles, the APR intake system allows the use of a small, compact filter with better filter utilisation than systems that are often twice the size. Unlike conventional open element filters, the APR intake system only draws air from the grille area near the front edge of the bonnet. In this way, air is drawn in from an area of relatively high pressure. As the speed of the vehicle increases, the pressure builds up further and ultimately supports the effectiveness of the intake system. By sealing the intake system, the pressure created by the ram air effect and the spiral shape is not simply lost in the engine compartment. This is in contrast to filters with open elements, which draw in air from a relatively low pressure range in the engine compartment. The design specifications called for an intake system that would only reproduce the true turbocharger sound of the engine when the air is drawn in through the turbocharger or expelled from the diverter valve when the throttle valve is lifted. The stiffness of the carbon fibre composite material results in engine intake resonance, allowing occupants to hear a clean and clear intake note without sounding intrusive or cheap. Compatible vehicles:Audi A3 (8V1, 8VK) 1.8 TFSI CJSA - 180 hpAudi A3 (8V1, 8VK) 1.8 TFSI quattro CJSB - 180 hpAudi A3 (8V1, 8VK) 2.0 TFSI CZPB - 190 hpAudi A3 (8V1, 8VK) 2.0 TFSI quattro CZPB - 190 hpAudi A3 (8V1, 8VK) S3 quattro CJXB - 280 hpAudi A3 (8V1, 8VK) S3 quattro CJXC - 300 hpAudi A3 (8V1, 8VK) S3 quattro CJXF - 286 hpAudi A3 (8V1, 8VK) S3 quattro CJXG - 310 hpAudi A3 (8V1, 8VK) S3 quattro DJHA - 310 hpAudi A3 Cabriolet (8V7, 8VE) 1.8 TFSI CJSA - 180 hpAudi A3 Cabriolet (8V7, 8VE) 1.8 TFSI CJSB - 180 hpAudi A3 Cabriolet (8V7, 8VE) 1.8 TFSI quattro CJSB - 180 hpAudi A3 Cabriolet (8V7, 8VE) 2.0 TFSI CZPB - 190 hpAudi A3 Cabriolet (8V7, 8VE) 2.0 TFSI quattro CZPB - 190 hpAudi A3 Cabriolet (8V7, 8VE) S3 quattro CJXC - 300 hpAudi A3 Cabriolet (8V7, 8VE) S3 quattro CJXF - 286 hpAudi A3 Cabriolet (8V7, 8VE) S3 quattro DJHA - 310 hpAudi A3 Cabriolet (8V7, 8VE) S3 quattro DNUE - 300 hpAudi A3 Saloon (8VS, 8VM) 1.8 TFSI CJSA - 180 hpAudi A3 Saloon (8VS, 8VM) 1.8 TFSI CJSB - 180 hpAudi A3 Saloon (8VS, 8VM) 1.8 TFSI quattro CJSB - 180 hpAudi A3 Saloon (8VS, 8VM) 2.0 TFSI CZPB - 190 hpAudi A3 Saloon (8VS, 8VM) S3 quattro CJXB - 280 hpAudi A3 Saloon (8VS, 8VM) S3 quattro CJXC - 300 hpAudi A3 Saloon (8VS, 8VM) S3 quattro CJXF - 286 hpAudi A3 Saloon (8VS, 8VM) S3 quattro CJXG - 310 hpAudi A3 Saloon (8VS, 8VM) S3 quattro DJHA - 310 hpAudi A3 Saloon (8VS, 8VM) S3 quattro DNUE - 300 hpAudi A3 Sportback (8VA, 8VF) 1.8 TFSI CJSA - 180 hpAudi A3 Sportback (8VA, 8VF) 1.8 TFSI CJSB - 180 hpAudi A3 Sportback (8VA, 8VF) 1.8 TFSI quattro CJSB - 180 hpAudi A3 Sportback (8VA, 8VF) 2.0 TFSI CZPB - 190 hpAudi A3 Sportback (8VA, 8VF) 2.0 TFSI quattro CZPB - 190 hpAudi A3 Sportback (8VA, 8VF) S3 quattro CJXB - 280 hpAudi A3 Sportback (8VA, 8VF) S3 quattro CJXC - 300 hpAudi A3 Sportback (8VA, 8VF) S3 quattro CJXF - 286 hpAudi A3 Sportback (8VA, 8VF) S3 quattro CJXG - 310 hpAudi A3 Sportback (8VA, 8VF) S3 quattro DJHA - 310 hpAudi A3 Sportback (8VA, 8VF) S3 quattro DNUE - 300 hpAudi Q2 (GAB, GAG) 2.0 TFSI quattro CZPB - 190 hpAudi Q2 (GAB, GAG) SQ2 TFSI quattro DNUE - 300 hpAudi Q3 (F3B) 40 TFSI quattro DKTC - 190 hpAudi Q3 (F3B) 45 TFSI quattro DKTA - 230 hpAudi Q3 Sportback (F3N) 40 TFSI quattro DKTC - 190 hpAudi Q3 Sportback (F3N) 45 TFSI quattro DKTA - 230 hpAudi TT (FV3, FVP) 1.8 TFSI CJSA - 180 hpAudi TT (FV3, FVP) 1.8 TFSI CJSB - 180 hpAudi TT (FV3, FVP) 2.0 TFSI CHHC - 230 hpAudi TT (FV3, FVP) 2.0 TFSI quattro CHHC - 230 hpAudi TT (FV3, FVP) 2.0 TTS quattro CJXF - 286 hpAudi TT (FV3, FVP) 2.0 TTS quattro CJXG - 310 hpAudi TT (FV3, FVP) 2.0 TTS quattro DNUF - 306 hpAudi TT (FV3, FVP) 45 TFSI DKTB - 245 hpAudi TT (FV3, FVP) 45 TFSI quattro DKTB - 245 hpAudi TT Roadster (FV9, FVR) 1.8 TFSI CJSA - 180 hpAudi TT Roadster (FV9, FVR) 1.8 TFSI CJSB - 180 hpAudi TT Roadster (FV9, FVR) 2.0 TFSI CHHC - 230 hpAudi TT Roadster (FV9, FVR) 2.0 TFSI quattro CHHC - 230 hpAudi TT Roadster (FV9, FVR) 2.0 TTS quattro CJXF - 286 hpAudi TT Roadster (FV9, FVR) 2.0 TTS quattro CJXG - 310 hpAudi TT Roadster (FV9, FVR) 2.0 TTS quattro DNUF - 306 hpAudi TT Roadster (FV9, FVR) 45 TFSI DKTB - 245 hpAudi TT Roadster (FV9, FVR) 45 TFSI quattro DKTB - 245 hpCupra Ateca (KH7, KHP) 2.0 TSI 4Drive DNUE - 300 hpCupra Formentor (KM7) 2.0 TSI 4Drive CZPB - 190 hpSeat Ateca (KH7, KHP) 2.0 TSI 4Drive CZPB - 190 hpSeat Leon (5F1) 1.8 TSI CJSA - 180 PSSeat Leon (5F1) 2.0 Cupra CJXA - 280 hpSeat Leon (5F1) 2.0 Cupra CJXC - 300 hpSeat Leon (5F1) 2.0 Cupra CJXE - 265 hpSeat Leon (5F1) 2.0 Cupra CJXH - 290 hpSeat Leon (5F1) 2.0 Cupra DNUC - 290 hpSeat Leon (5F1) 2.0 Cupra R CJXG - 310 hpSeat Leon SC (5F5) 1.8 TSI CJSA - 180 hpSeat Leon SC (5F5) 2.0 Cupra CJXA - 280 hpSeat Leon SC (5F5) 2.0 Cupra CJXC - 300 hpSeat Leon SC (5F5) 2.0 Cupra CJXE - 265 hpSeat Leon SC (5F5) 2.0 Cupra CJXH - 290 hpSeat Leon ST (5F8) 1.8 TSI CJSA - 180 hpSeat Leon ST (5F8) 2.0 Cupra CJXA - 280 hpSeat Leon ST (5F8) 2.0 Cupra CJXC - 300 hpSeat Leon ST (5F8) 2.0 Cupra CJXE - 265 hpSeat Leon ST (5F8) 2.0 Cupra CJXH - 290 hpSeat Leon ST (5F8) 2.0 Cupra DNUC - 290 hpSeat Leon ST (5F8) 2.0 Cupra 4Drive CJXC - 300 hpSeat Leon ST (5F8) 2.0 Cupra 4Drive DNUE - 300 hpSkoda Octavia III (5E3, NL3, NR3) 1.8 TSI CJSA - 180 hpSkoda Octavia III (5E3, NL3, NR3) 2.0 TSI RS CHHA - 230 hpSkoda Octavia III (5E3, NL3, NR3) 2.0 TSI RS CHHB - 220 hpSkoda Octavia III (5E3, NL3, NR3) 2.0 TSI RS DLBA - 245 hpSkoda Octavia III Combi (5E5, 5E6) 1.8 TSI CJSA - 180 hpSkoda Octavia III Combi (5E5, 5E6) 1.8 TSI CJSB - 180 hpSkoda Octavia III Combi (5E5, 5E6) 2.0 TSI RS CHHA - 230 hpSkoda Octavia III Combi (5E5, 5E6) 2.0 TSI RS CHHB - 220 hpSkoda Octavia III Combi (5E5, 5E6) 2.0 TSI RS DLBA - 245 hpSkoda Superb III (3V3) 2.0 TSI CHHB - 220 hpSkoda Superb III (3V3) 2.0 TSI 4x4 CJXA - 280 hpSkoda Superb III Estate (3V5) 2.0 TSI CHHB - 220 hpSkoda Superb III Estate (3V5) 2.0 TSI 4x4 CJXA - 280 hpVW Arteon (3H7, 3H8) 2.0 TSI CZPB - 190 hpVW Arteon (3H7, 3H8) 2.0 TSI 4motion DJHC - 280 hpVW Arteon (3H7, 3H8) 2.0 TSI 4motion DNUA - 272 hpVW Arteon SHOOTING BRAKE (3H9) 2.0 TSi CZPB - 190 hpVW Arteon SHOOTING BRAKE (3H9) 2.0 TSi 4motion DNUA - 272 hpVW Golf VII (5G1, BQ1, BE1, BE2) 2.0 GTI CHHA - 230 hpVW Golf VII (5G1, BQ1, BE1, BE2) 2.0 GTI CHHB - 220 PSVW Golf VII (5G1, BQ1, BE1, BE2) 2.0 GTI CXDA - 220 hpVW Golf VII (5G1, BQ1, BE1, BE2) 2.0 GTI DKTB - 245 hpVW Golf VII (5G1, BQ1, BE1, BE2) 2.0 GTI DLBA - 245 PSVW Golf VII (5G1, BQ1, BE1, BE2) 2.0 GTI Clubsport CJXE - 265 PSVW Golf VII (5G1, BQ1, BE1, BE2) 2.0 GTI Clubsport S CJXG - 310 PSVW Golf VII (5G1, BQ1, BE1, BE2) 2.0 GTI TCR DNUC - 290 PSVW Golf VII (5G1, BQ1, BE1, BE2) 2.0 R 4motion CJXC - 300 hpVW Golf VII (5G1, BQ1, BE1, BE2) 2.0 R 4motion CJXG - 310 hpVW Golf VII (5G1, BQ1, BE1, BE2) 2.0 R 4motion DJHA - 310 hpVW Golf VII (5G1, BQ1, BE1, BE2) 2.0 R 4motion DNUE - 300 hpVW Golf VII Estate (BA5, BV5) 1.8 TSI 4motion CJSB - 179 hpVW Golf VII Variant (BA5, BV5) 2.0 R 4motion CJXC - 300 hpVW Golf VII Variant (BA5, BV5) 2.0 R 4motion CJXG - 310 hpVW Golf VII Estate (BA5, BV5) 2.0 R 4motion DJHA - 310 hpVW Golf VII Variant (BA5, BV5) 2.0 R 4motion DNUE - 300 hpVW Passat ALLTRACK B8 Variant (3G5, CB5) 2.0 TSI 4motion CHHB - 220 hpVW Passat ALLTRACK B8 Variant (3G5, CB5) 2.0 TSI 4motion CJXA - 280 hpVW Passat B8 (3G2, CB2) 1.8 TSI CJSA - 180 hpVW Passat B8 (3G2, CB2) 1.8 TSI CJSC - 180 hpVW Passat B8 (3G2, CB2) 2.0 TSI CHHB - 220 hpVW Passat B8 (3G2, CB2) 2.0 TSI CXDA - 220 hpVW Passat B8 (3G2, CB2) 2.0 TSI CZPB - 190 hpVW Passat B8 (3G2, CB2) 2.0 TSI 4motion CJXA - 280 hpVW Passat B8 (3G2, CB2) 2.0 TSI 4motion DNUA - 272 hpVW Passat B8 Estate (3G5, CB5) 1.8 TSI CJSA - 180 hpVW Passat B8 Estate (3G5, CB5) 1.8 TSI CJSC - 180 hpVW Passat B8 Estate (3G5, CB5) 2.0 TSI CHHB - 220 hpVW Passat B8 Estate (3G5, CB5) 2.0 TSI CXDA - 220 hpVW Passat B8 Estate (3G5, CB5) 2.0 TSI CZPB - 190 hpVW Passat B8 Estate (3G5, CB5) 2.0 TSI 4motion CJXA - 280 hpVW Passat B8 Estate (3G5, CB5) 2.0 TSI 4motion DNUA - 272 hpVW Tiguan (AD1, AX1) 2.0 TSI 4motion CHHB - 220 hpVW Tiguan (AD1, AX1) 2.0 TSI 4motion CZPA - 180 hpVW Tiguan (AD1, AX1) 2.0 TSI 4motion DKTA - 230 hpVW Tiguan ALLSPACE (BW2, BJ2) 2.0 TSI 4motion CXDA - 220 hpVW Tiguan ALLSPACE (BW2, BJ2) 2.0 TSI 4motion DGVA - 180 hpVW Tiguan ALLSPACE (BW2, BJ2) 2.0 TSI 4motion DNJA - 220 hpVW Touran (5T1) 1.8 TSI CJSA - 180 hpVW T-Roc (A11, D11) 2.0 R 4motion DNUE - 300 hpVW T-Roc (A11, D11) 2.0 TSI 4motion CZPB - 190 hp

The G90 SOOQOO rear apron made of pre-preg carbon fiber gives your vehicle a distinctly sporty aggressiveness and gives it a lot of presence on the road.Details:- Constructed from 100% pure pre-preg carbon fibre- OEM style weave- High-gloss finish- Perfect fit- registration according to §21 possible Scope of delivery:1x front spoiler in prepreg carbon fibre Compatible vehicles:BMW M5 G90Note: This is NOT an original BMW product!

A revolution in carbon fibre. The front lip from 3DDesign for the G30 turns your 5 Series into a completely new car. The dedication and professionalism in the design and finish ensures an expressive and highly individualised look. Compatible vehicles:BMW 5 (G30, F90) 518 d 2018-2020BMW 5 (G30, F90) 520 d 2016-2023BMW 5 (G30, F90) 520 d xDrive 2016-2023BMW 5 (G30, F90) 520 i 2017-2020BMW 5 (G30, F90) 525 d 2017-2019BMW 5 (G30, F90) 530 d 2016-2020BMW 5 (G30, F90) 530 d xDrive 2016-2020BMW 5 (G30, F90) 530 d xDrive 2016-2020BMW 5 (G30, F90) 530 e Plug-in Hybrid 2017-2020BMW 5 (G30, F90) 530 e Plug-in Hybrid xDrive 2017-2023BMW 5 (G30, F90) 530 i 2016-2020BMW 5 (G30, F90) 530 i xDrive 2016-2023BMW 5 (G30, F90) 540 d xDrive 2017-2020BMW 5 (G30, F90) 540 i 2016-2020BMW 5 (G30, F90) 540 i xDrive 2016-2020BMW 5 (G30, F90) M 550 i xDrive 2017-2019BMW 5 Touring (G31) 518 d 2018-2020BMW 5 Touring (G31) 520 d since 2017BMW 5 Touring (G31) 520 d xDrive Since 2017BMW 5 Touring (G31) 520 i 2017-2020BMW 5 Touring (G31) 525 d 2017-2019BMW 5 Touring (G31) 530 d 2017-2020BMW 5 Touring (G31) 530 d xDrive 2017-2020BMW 5 Touring (G31) 530 i 2017-2020BMW 5 Touring (G31) 530 i xDrive 2017-2020BMW 5 Touring (G31) 540 d xDrive 2017-2020BMW 5 Touring (G31) 540 i xDrive 2017-2020BMW 5 Touring (G31) M 550 d xDrive since 2017BMW 5 Touring Van (G31) 520 d 2017-2018BMW 5 Touring Van (G31) 520 d xDrive 2017-2018BMW 5 Touring Van (G31) 520 i Since 2017BMW 5 Touring Van (G31) 530 d Since 2017BMW 5 Touring Van (G31) 530 d xDrive Since 2017BMW 5 Touring Van (G31) 530 i Since 2017BMW 5 Touring Van (G31) 530 i xDrive Since 2017BMW 5 Touring Van (G31) 540 d xDrive Since 2017BMW 5 Touring Van (G31) 540 i xDrive Since 2017

Facts: Material: CarbonManufacturer: EventuriExpert option: Material certificate Compatible vehicles:VehicleVehicle typePowerEngine capacityEngine type Audi A5 (B8/8T)RS5 quattro331kW / 450hp4136cm³CFSA

The Wagner Tuning intercooler kit EVO III Competition fits the following vehicles with N54 engine:BMW Z4 35i E89 2009+BMW Z4 35is E89 2010+ Experience a groundbreaking increase in performance with the Wagner Tuning EVO III Competition high-performance intercooler. With mesh dimensions of 510 mm x 303 mm x 180 mm and an impressive total volume of 20.65 liters, this intercooler offers a massive 162% larger flow area and an impressive 182% more charge air volume compared to the standard intercooler. The high-quality Tube Fin mesh with internal turbulators ensures optimum cooling and maximum performance. Despite its imposing size, the intercooler impresses with a total weight of just 13.2 kg. The cast aluminium end boxes were optimized using flow analyses in the CFD system to ensure optimum air flow. The result is outstanding cooling properties with minimal back pressure, keeping your E89 running at full speed. The EVO III Competition intercooler kit has been specially developed for the high demands of large tuning stages on the E89. It contains reinforced silicone hoses and eliminates the original click connections. The connection diameters at the inlet and outlet have been extended to Ø70mm to ensure optimum airflow. Each of our intercoolers is coated with a high-quality anti-corrosion coating to ensure a long-lasting and optimal cooling effect. Installation of this completely ready-to-fit kit is child's play. Simply replace the standard intercooler with the EVO III Competition high-performance intercooler - plug-and-play. Please note that due to the extreme size of the radiator, minor adjustments to the radiator support may be required. The EVO III Competition high-performance intercooler has been tested up to 6 bar and is absolutely pressure-stable. The quality of our products is our top priority, which is why all our products are subject to constant quality monitoring. This intercooler is also perfect for racing. Advantages of the Wagner Tuning intercooler:- improved cooling performance- 162% larger inflow area- 182% more charge air volume- Minimal back pressure and flow-optimized- Inlet and outlet have been extended to Ø70mm- Plug & Play Scope of delivery:1 intercooler2 silicone hoses1 mounting material1 assembly instructionAttention: Not approved in the area of the StVZO.

CSF Race water cooler for BMW E9x Triple Pass cooler With CSF's exclusive B-Tube technology and 6.5 mm multi-fin height, 1-hour polished mirror finish, CNC-machined mounting bracketsTrue drop-in fit: no adjustments during installation CSF manufactures the most advanced and efficient radiator cores in the industry by using innovative tube and fin technologies with industry-leading testing methods to maximize airflow and heat dissipation. These techniques allow CSF to stay ahead of the curve in radiator technology! “B-Tube” technologyIn contrast to a normal “O” type oval radiant tube, CSF uses a specially developed tube in the shape of a “B”. These “B-Tubes” are carefully formed and then soldered over the seam to seal it. CSF is able to use thinner and lighter aluminum material (better cooling efficiency) because this design is actually stronger than normal “O” shape tubes that are welded. The design (inlet in the center of the tube which is seam brazed) increases the heat transfer surface area of the tubes by approximately 15% over normal tubes. You get the efficiency of 2 smaller tubes versus 1 large tube with the same space criteria. With “B-Tubes” you can get “Dual Liquid Laminar Flow”. High Efficiency Multi Louvered FinCSF uses high efficiency multi-louvered fins that are carefully and precisely aligned to maximize airflow through each radiator core. Fin specifications are carefully measured and calculated for each application and tested in our wind tunnel lab for maximum heat dissipation efficiency. Compatible vehicles:BMW 3 (E90) M3 2007-2011BMW 3 (E90) M3 CRT 2011-2011BMW 3 Convertible (E93) M3 2008-2013BMW 3 Coupe (E92) M3 2007-2013BMW 3 Coupe (E92) M3 GTS 2007-2013