

K&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Replacement Filter: Flange Diameter: 6 In, Filter Height: 8 In, Flange Length: 0.625 In, Shape: Round Tapered, RU-1044
Key item features
- Performance Boost: Engineered with state-of-the-art filtration media, this filter provides up to 50% more airflow than disposable paper filters, enhancing power and acceleration.
- Effortless Installation: Pre-oiled and designed for easy drop-in installation into a factory air box, offering a cost-effective upgrade for quick performance gains.
- Sustainable Design: This washable and reusable air filter helps reduce replacement waste, lasting longer than 10 disposable filters and saving money over time.
- Engine Safeguard: Provides world-class protection by effectively safeguarding the engine from harmful contaminants, ensuring optimal engine health.
- Extended Maintenance: Features a low-maintenance design, requiring cleaning only every 50,000 miles under normal highway driving conditions.
- Robust Construction: Constructed with ultra-strong molded pliable rubber flanges that absorb vibration and allow for secure attachment.
- Precise Dimensions: Features a 6-inch flange diameter, 8-inch filter height, 0.625-inch flange length, and a round tapered shape (RU-1044).
Specs
- Vehicle makeK&N Filters
- Vehicle model1500
- Engine air filter typePaper
- Vehicle fitment typeUniversal
- Materialrubber
- FeaturesWashable
- Free shipping
Free 30-day returns
How do you want your item?
More seller options (5)
Similar items you might like
Based on what customers bought
K&N Universal Clamp-On Engine Air Filter: Washable and Reusable: Round Tapered; 5 in (127 mm) Flange ID; 7 in (178 mm) Height; 6.5 in (165 mm) Base; 4.375 in (111 mm) Top , RU-2800 $68.99
$6899current price $68.99K&N Universal Clamp-On Engine Air Filter: Washable and Reusable: Round Tapered; 5 in (127 mm) Flange ID; 7 in (178 mm) Height; 6.5 in (165 mm) Base; 4.375 in (111 mm) Top , RU-2800
55 out of 5 Stars. 5 reviewsSave withShipping, arrives tomorrowK&N Filters E-3341 7" X 4-1/2", 3-1/4"H,Oval $68.99
$6899current price $68.99K&N Filters E-3341 7" X 4-1/2", 3-1/4"H,Oval
Save withShipping, arrives tomorrowK&N Filters RU-1042 6" Flange, 7-1/2" B, 5" T, 6-1/2" H Universal Air Filter $78.99
$7899current price $78.99K&N Filters RU-1042 6" Flange, 7-1/2" B, 5" T, 6-1/2" H Universal Air Filter
65 out of 5 Stars. 6 reviewsShipping, arrives in 3+ daysK & N Engineering RU-4630 3.5 in. Flange 5.5 in. Base 4.5 in. Top 6.5 in. Height Universal Air Filter $78.99 $78.99/lb
$7899current price $78.99$78.99/lbK & N Engineering RU-4630 3.5 in. Flange 5.5 in. Base 4.5 in. Top 6.5 in. Height Universal Air Filter
15 out of 5 Stars. 1 reviewsShipping, arrives in 3+ daysK&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Replacement Filter: Flange Diameter: 3.125 In, Filter Height: 7 In, Flange Length: 1.75 In, Shape: Round Tapered, RU-5100 $94.99
$9499current price $94.99K&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Replacement Filter: Flange Diameter: 3.125 In, Filter Height: 7 In, Flange Length: 1.75 In, Shape: Round Tapered, RU-5100
Shipping, arrives in 3+ daysK&N Universal Clamp-On Engine Air Filter: Washable and Reusable: Round Tapered; 2.5 in (64 mm) Flange ID; 5.5 in (140 mm) Height; 6 in (152 mm) Base; 5 in (127 mm) Top, RU-4950 $68.99
$6899current price $68.99K&N Universal Clamp-On Engine Air Filter: Washable and Reusable: Round Tapered; 2.5 in (64 mm) Flange ID; 5.5 in (140 mm) Height; 6 in (152 mm) Base; 5 in (127 mm) Top, RU-4950
45 out of 5 Stars. 4 reviewsSave withShipping, arrives in 2 daysPERF.AIR FILTERS Universal Clamp-On RC-4780 Washable Engine Air Filter $78.99
$7899current price $78.99PERF.AIR FILTERS Universal Clamp-On RC-4780 Washable Engine Air Filter
214.6 out of 5 Stars. 21 reviewsSave withShipping, arrives tomorrowK&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Replacement Filter: Flange Diameter: 3.5 In, Filter Height: 5.5 In, Flange Length: 0.625 In, Shape: Round Tapered, RU-3550 $52.99
$5299current price $52.99K&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Replacement Filter: Flange Diameter: 3.5 In, Filter Height: 5.5 In, Flange Length: 0.625 In, Shape: Round Tapered, RU-3550
34.3 out of 5 Stars. 3 reviewsSave withShipping, arrives tomorrowK&N RU-5147 Clamp-on Washable Engine Air Filter Replacement filter for Universal Vehicles $68.99
$6899current price $68.99K&N RU-5147 Clamp-on Washable Engine Air Filter Replacement filter for Universal Vehicles
55 out of 5 Stars. 5 reviewsSave withShipping, arrives tomorrowK&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Replacement Filter: Flange Diameter: 4 In, Filter Height: 7 In, Flange Length: 1.75 In, Shape: Round Tapered, RU-4680 $78.99
$7899current price $78.99K&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Replacement Filter: Flange Diameter: 4 In, Filter Height: 7 In, Flange Length: 1.75 In, Shape: Round Tapered, RU-4680
15 out of 5 Stars. 1 reviewsShipping, arrives in 3+ daysK&N 335139 Replacement Air Filter $68.99
$6899current price $68.99K&N 335139 Replacement Air Filter
Save withShipping, arrives tomorrowK&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Replacement Engine Filter: Flange Diameter: 6 In, Filter Height: 7.5 In, Flange Length: 1 In, Shape: Round Tapered, RU-1041 $78.99
$7899current price $78.99K&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Replacement Engine Filter: Flange Diameter: 6 In, Filter Height: 7.5 In, Flange Length: 1 In, Shape: Round Tapered, RU-1041
55 out of 5 Stars. 5 reviewsShipping, arrives in 3+ daysK&N Universal Clamp-On Engine Air Filter: Washable and Resuable: Round Tapered; 6 in (152 mm) Flange ID; 6 in (152 mm) Height; 7.5 in (191 mm) Base; 4.5 in (114 mm) Top , RF-1048 $78.99
$7899current price $78.99K&N Universal Clamp-On Engine Air Filter: Washable and Resuable: Round Tapered; 6 in (152 mm) Flange ID; 6 in (152 mm) Height; 7.5 in (191 mm) Base; 4.5 in (114 mm) Top , RF-1048
54.8 out of 5 Stars. 5 reviewsSave withShipping, arrives tomorrowSuper Tech 1325 Engine Air Filter, Replacement Filter for Ford $14.97
2 optionsAvailable in additional 2 options$1497current price $14.97Super Tech 1325 Engine Air Filter, Replacement Filter for Ford
25234.5 out of 5 Stars. 2523 reviewsSave withShipping, arrives todayK&N Universal Clamp-On RU-4740 Washable Engine Air Filter $68.99
$6899current price $68.99K&N Universal Clamp-On RU-4740 Washable Engine Air Filter
115 out of 5 Stars. 11 reviewsSave withShipping, arrives in 2 daysK&N Universal RG-1001RD Clamp-On Air Filter Washable and Reusable Engine Air Filter $48.53
$4853current price $48.53K&N Universal RG-1001RD Clamp-On Air Filter Washable and Reusable Engine Air Filter
Shipping, arrives in 3+ daysK&N Engine Air Filter: High Performance, Premium, Washable, Replacement Filter: 2007-2017 Audi L4 1.8/2.0L (A5 Quattro, Q5, A4, A5), 33-2945 $70.12
$7012current price $70.12K&N Engine Air Filter: High Performance, Premium, Washable, Replacement Filter: 2007-2017 Audi L4 1.8/2.0L (A5 Quattro, Q5, A4, A5), 33-2945
33.7 out of 5 Stars. 3 reviewsShipping, arrives in 3+ daysK&N Universal Clamp-On Air Filter: High Performance, Premium, Replacement Engine Filter: Flange Diameter: 6 In, Filter Height: 7.5 In, Flange Length: 1.125 In, Shape: Round Tapered, RU-5177HBK $125.94
$12594current price $125.94K&N Universal Clamp-On Air Filter: High Performance, Premium, Replacement Engine Filter: Flange Diameter: 6 In, Filter Height: 7.5 In, Flange Length: 1.125 In, Shape: Round Tapered, RU-5177HBK
44 out of 5 Stars. 4 reviewsShipping, arrives in 3+ daysK&N RU-3102HBK Clamp On Black Dry Flow Round Rubber Filter 6" Flange X 7.5" Base $83.99
$8399current price $83.99K&N RU-3102HBK Clamp On Black Dry Flow Round Rubber Filter 6" Flange X 7.5" Base
15 out of 5 Stars. 1 reviewsSave withShipping, arrives tomorrowK&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Replacement Filter: Flange Diameter: 4 In, Filter Height: 7 In, Flange Length: 1.75 In, Shape: Round Tapered, RC-4680 $84.75
$8475current price $84.75K&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Replacement Filter: Flange Diameter: 4 In, Filter Height: 7 In, Flange Length: 1.75 In, Shape: Round Tapered, RC-4680
Shipping, arrives in 3+ days
About this item
Product details
K&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Replacement Filter: Flange Diameter: 6 In, Filter Height: 8 In, Flange Length: 0.625 In, Shape: Round Tapered, RU-1044
- Engineered Power: State-of-the-art filtration media provides up to 50% more airflow than disposable paper filters to increase power and acceleration. Clogged or dirty air filters can reduce your vehicle’s acceleration by up to 10%.
- Easy Installation: Pre-oiled and ready to drop into your factory air box. One of the easiest and most cost-effective upgrades for your vehicle for quick performance gains.
- Saves Money: K&N high-flow replacement air filters will save you $250 over 10 years by avoiding disposable filters.
- Eco-Friendly: Using a washable, reusable product helps reduce replacement waste. A K&N filter will last longer than 10 disposable filters.
- World Class Protection: Pushing the limits of engine protection by protecting your engine from harmful contaminants.
- Low-Maintenance Design: 50,000 miles before your first cleaning under normal highway driving conditions.
- High Quality
- Race Tested: The Official Air Filter of NASCAR. Trusted on the racetrack—made for your vehicle.
- N0-Hassle Warranty: 1-Year Limited Warranty
- "
Fits Select:
2013-2018 RAM 1500 8 Cyl 5.7 L
2009-2012 DODGE RAM 1500 8 Cyl 5.7 L
2019-2021 RAM 1500 CLASSIC 8 Cyl 5.7 L
2012-2021 TOYOTA TUNDRA 8 Cyl 5.7 L
2004-2015 NISSAN TITAN 8 Cyl 5.6 L
1999-2004 FORD F250 8 Cyl 5.4 L
2000-2005 FORD EXCURSION 10 Cyl 6.8 L
2004-2015 NISSAN ARMADA 8 Cyl 5.6 L
2013-2018 RAM 2500 8 Cyl 5.7 L
1999-2003 FORD F350 10 Cyl 6.8 L
2012-2021 TOYOTA SEQUOIA 8 Cyl 5.7 L
2004 FORD F350 8 Cyl 5.4 L
2004-2010 INFINITI QX56 8 Cyl 5.6 L
2016-2019 TOYOTA LAND CRUISER 8 Cyl 5.7 L
2010-2012 FORD MUSTANG 8 Cyl 5.4 L
2013-2018 RAM 3500 8 Cyl 5.7 L
and more - add your vehicle to our fit widget to check
Specifications
Vehicle make
Vehicle model
Brand
Engine air filter type
Directions
Fabric Care Instructions
Warranty
Warranty information
Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.
Warranty url
Popular items in this category
Best selling items that customers love
K&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Replacement Filter: Flange Diameter: 6 In, Filter Height: 6 In, Flange Length: 0.625 In, Shape: Round Tapered, RU-5173 $94.99
$9499current price $94.99K&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Replacement Filter: Flange Diameter: 6 In, Filter Height: 6 In, Flange Length: 0.625 In, Shape: Round Tapered, RU-5173
74.6 out of 5 Stars. 7 reviewsSave withShipping, arrives tomorrowK&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Replacement Filter: Flange Diameter: 2.5 In, Filter Height: 6.5 In, Flange Length: 2 In, Shape: Round Tapered, RU-4860 $68.99
$6899current price $68.99K&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Replacement Filter: Flange Diameter: 2.5 In, Filter Height: 6.5 In, Flange Length: 2 In, Shape: Round Tapered, RU-4860
45 out of 5 Stars. 4 reviewsShipping, arrives in 3+ daysK&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Replacement Filter: Flange Diameter: 3 In, Filter Height: 6.5 In, Flange Length: 1.75 In, Shape: Round Tapered, RU-4730 $78.99
$7899current price $78.99K&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Replacement Filter: Flange Diameter: 3 In, Filter Height: 6.5 In, Flange Length: 1.75 In, Shape: Round Tapered, RU-4730
15 out of 5 Stars. 1 reviewsShipping, arrives in 3+ daysK&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Replacement Filter: Flange Diameter: 3.5 In, Filter Height: 4.5 In, Flange Length: 0.625 In, Shape: Round Tapered, RU-2790 $52.99
$5299current price $52.99K&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Replacement Filter: Flange Diameter: 3.5 In, Filter Height: 4.5 In, Flange Length: 0.625 In, Shape: Round Tapered, RU-2790
35 out of 5 Stars. 3 reviewsSave withShipping, arrives tomorrowK&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Replacement Filter: Flange Diameter: 2.75 In, Filter Height: 5 In, Flange Length: 0.75 In, Shape: Round Tapered, RU-4450 $67.98
$6798current price $67.98K&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Replacement Filter: Flange Diameter: 2.75 In, Filter Height: 5 In, Flange Length: 0.75 In, Shape: Round Tapered, RU-4450
Shipping, arrives in 3+ daysK&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Replacement Filter: Flange Diameter: 4.5 In, Filter Height: 4.5 In, Flange Length: 0.625 In, Shape: Round Tapered, RU-1005 $62.99
$6299current price $62.99K&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Replacement Filter: Flange Diameter: 4.5 In, Filter Height: 4.5 In, Flange Length: 0.625 In, Shape: Round Tapered, RU-1005
Shipping, arrives in 3+ daysK&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Replacement Filter: Flange Diameter: 2.75 In, Filter Height: 6 In, Flange Length: 1 In, Shape: Round Tapered, RU-3120 $62.99
$6299current price $62.99K&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Replacement Filter: Flange Diameter: 2.75 In, Filter Height: 6 In, Flange Length: 1 In, Shape: Round Tapered, RU-3120
35 out of 5 Stars. 3 reviewsShipping, arrives in 3+ daysK&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Replacement Filter: Flange Diameter: 5 In, Filter Height: 4.125 In, Flange Length: 1 In, Shape: Round Tapered, RU-5163 $68.99
$6899current price $68.99K&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Replacement Filter: Flange Diameter: 5 In, Filter Height: 4.125 In, Flange Length: 1 In, Shape: Round Tapered, RU-5163
35 out of 5 Stars. 3 reviewsSave withShipping, arrives tomorrowK&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Replacement Filter: Flange Diameter: 2 In, Filter Height: 3 In, Flange Length: 0.625 In, Shape: Round Tapered, RU-2580 $52.99
$5299current price $52.99K&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Replacement Filter: Flange Diameter: 2 In, Filter Height: 3 In, Flange Length: 0.625 In, Shape: Round Tapered, RU-2580
Shipping, arrives in 3+ daysK&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Replacement Filter: Flange Diameter: 3 In, Filter Height: 5 In, Flange Length: 1.75 In, Shape: Round Tapered, RU-5176 $94.99
$9499current price $94.99K&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Replacement Filter: Flange Diameter: 3 In, Filter Height: 5 In, Flange Length: 1.75 In, Shape: Round Tapered, RU-5176
Shipping, arrives in 3+ daysK&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Replacement Engine Filter: Flange Diameter: 6 In, Filter Height: 10 In, Flange Length: 1 In, Shape: Round Tapered, RU-3280 $68.99
$6899current price $68.99K&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Replacement Engine Filter: Flange Diameter: 6 In, Filter Height: 10 In, Flange Length: 1 In, Shape: Round Tapered, RU-3280
15 out of 5 Stars. 1 reviewsShipping, arrives in 3+ daysK&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Replacement Engine Filter: Flange Diameter: 2.25 In, Filter Height: 6 In, Flange Length: 1 In, Shape: Round, RU-1720 $57.99
$5799current price $57.99K&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Replacement Engine Filter: Flange Diameter: 2.25 In, Filter Height: 6 In, Flange Length: 1 In, Shape: Round, RU-1720
25 out of 5 Stars. 2 reviewsShipping, arrives in 3+ daysK&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Replacement Engine Filter: Flange Diameter: 2.875 In, Filter Height: 6 In, Flange Length: 0.625 In, Shape: Round, RU-1620 $52.99
$5299current price $52.99K&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Replacement Engine Filter: Flange Diameter: 2.875 In, Filter Height: 6 In, Flange Length: 0.625 In, Shape: Round, RU-1620
Shipping, arrives in 3+ daysK&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Replacement Engine Filter: Flange Diameter: 2.4375 In, Filter Height: 4 In, Flange Length: 0.625 In, Shape: Round, RU-0800 $52.99
$5299current price $52.99K&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Replacement Engine Filter: Flange Diameter: 2.4375 In, Filter Height: 4 In, Flange Length: 0.625 In, Shape: Round, RU-0800
Shipping, arrives in 3+ daysK&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Replacement Filter: Flange Diameter: 4 In, Filter Height: 12 In, Flange Length: 1.75 In, Shape: Round Tapered, RE-0860 $94.94
$9494current price $94.94K&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Replacement Filter: Flange Diameter: 4 In, Filter Height: 12 In, Flange Length: 1.75 In, Shape: Round Tapered, RE-0860
35 out of 5 Stars. 3 reviewsShipping, arrives in 3+ daysK&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Replacement Filter: Flange Diameter: 4 In, Filter Height: 6 In, Flange Length: 1.75 In, Shape: Round Tapered, RE-0850 $68.99
$6899current price $68.99K&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Replacement Filter: Flange Diameter: 4 In, Filter Height: 6 In, Flange Length: 1.75 In, Shape: Round Tapered, RE-0850
15 out of 5 Stars. 1 reviewsShipping, arrives in 3+ daysK&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Replacement Filter: Flange Diameter: 4 In, Filter Height: 14 In, Flange Length: 1.75 In, Shape: Round Tapered, RE-0880 $94.99
$9499current price $94.99K&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Replacement Filter: Flange Diameter: 4 In, Filter Height: 14 In, Flange Length: 1.75 In, Shape: Round Tapered, RE-0880
15 out of 5 Stars. 1 reviewsSave withShipping, arrives in 3+ daysK&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Replacement Engine Filter: Flange Diameter: 2.5 In, Filter Height: 4 In, Flange Length: 0.625 In, Shape: Round, RD-0700 $52.99
$5299current price $52.99K&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Replacement Engine Filter: Flange Diameter: 2.5 In, Filter Height: 4 In, Flange Length: 0.625 In, Shape: Round, RD-0700
55 out of 5 Stars. 5 reviewsSave withShipping, arrives tomorrowK&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Replacement Filter: Flange Diameter: 4 In, Filter Height: 9.5 In, Flange Length: 1.125 In, Shape: Round Tapered, RG-1002RD $78.21
$7821current price $78.21K&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Replacement Filter: Flange Diameter: 4 In, Filter Height: 9.5 In, Flange Length: 1.125 In, Shape: Round Tapered, RG-1002RD
44.5 out of 5 Stars. 4 reviewsShipping, arrives in 3+ daysK&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Replacement Engine Filter: Flange Diameter: 3 In, Filter Height: 5 In, Flange Length: 1 In, Shape: Round, RB-0910 $52.99
$5299current price $52.99K&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Replacement Engine Filter: Flange Diameter: 3 In, Filter Height: 5 In, Flange Length: 1 In, Shape: Round, RB-0910
Save withShipping, arrives tomorrow
Customer ratings & reviews
Filtered and sorted results would be available on the new 'Customer ratings & reviews' page.
Showing 1-3 of 5 reviews
Best air filtration!
I have K&N filters on 4 of my vehicles, this one on a 2015 Ram, as part of K&N's Cold Air Induction Kit, and my 1994 "Brickyard 400" Corvette with restrictive air box removed, my 2013 Stage IV Harley Ultra Limited with the Screamin' Eagle 'Heavy Breather', and my Stage I, 2015 Dyna Low Rider. K&N filters are the best!
5 Star Review
I have been a K&N filter user for more than a decade and love the quality of the products. The online order arrived within 3-4 days and the filter was the exact item I've used before. Top tier quality and easy to install. I will continue to use K&N in the future and continue recommending them to friends and family!
5 Star Review
It fit my BMW e30 with m50b25 engine very well!
