56-1390 Image

Custom Assemblies > Custom Racing Assembly

 List Price: $109.65
Your Price: $74.99

You Save 31.6%

Find a Local K&N Dealer


       

56-1390
 
In Stock & Ready to Ship!
 Free Ground Shipping!


K&N Custom Air Filters for Single or Two Barrel Carburetors - K&N Custom Air Filter kits are designed to allow the maximum performance from your carburetors, yet keep the dirt on the outside where it belongs. These assemblies come with custom chrome top and base plates and the famous K&N High-Flow Washable Air Filter.

[More Information on Custom Air Filters for Single or Two Barrel Carburetors]
  • Designed to increase horsepower and acceleration
  • Show quality with custom chrome top and base
  • Washable and reusable air filter
  • High air flow with excellent filtration
  • One year limited warranty
Available Information
56-1390 Vehicle Applications


Part 56-1390 Product Specifications
Product Style: Custom Assemblies
Air Filter Color: Red
Air Filter Height: 1.75 in (44 mm)
Air Filter Inside Diameter: 4.5 in (114 mm)
Air Filter Material: Cotton Gauze
Air Filter Shape: Round
Inlet Diameter: 1.5 in (38 mm)
Mounting Hardware Included: Yes
Neck Flange: 1.75 in (44 mm)
Overall Height: 2 in (51 mm)
Replacement Filter: E-3180
Style: Round
Top Material/Finish: Chrome
Top Style: Metal
Color: Red
Filter Material: Cotton Gauze
Height: 1.75 in (44 mm)
Inner Wire: No
Inside Diameter: 1.5 in (38 mm)
Outside Diameter: 5.875 in (149 mm)
Size: Small/Medium
Total Height: 2 in (51 mm)
Weight: 1.1 lb (0.5 kg)
Product Box Length: 6.5 in (165 mm)
Product Box Width: 3.63 in (92 mm)
Product Box Height: 6.63 in (168 mm)



Customer Feedback      Be the first to review part 56-1390

I have installed K&N air filters (and occasionally oil filters) in every vehicle I've owned in the last 15 years. The latest is my new 2014 Triumph Street Triple motorcycle. Love the change in induction noise, and I like the idea that my bike's breathing freer, even if the change isn't noticeable in increased power. The simple fact that these things last forever is enough to sell me. Keep up the good work, K&N!
Wayno J., Mill Creek, Washington
Perfect fit for my '69 Triumph TR6C with Concentric Carburetor. I have K&N filters in all my motorcycles now. Best filters on the market!!
Ed Jacobs, Denver, Colorado
I installed my first K&N filter in 1975 while I was the manager at Small Car Accessories, a high performance VW shop in Sunnyvale CA. At the time I ran these filters on both of my Corvair powered VW's, a '58 Single Cab pickup, which I still drive, and a '71 bug. They worked really well on the street, giving me an extra mile or two per gallon with pretty much 'filter-less' performance, and worked especially well in the shop's sand rail. Other filters would pack it in when running the dunes at Pismo and until the K&N's came along, you carried a couple of extra filters. The K&N's not only kept the sand out, but did well when packed with sand. A quick stop and a quick tap or two and they were ready to go again. Because they flowed air so well and were so easy to clean. We sold a lot of them to our off-roading customers, and they loved them. At the time, RURA racers ran their buggies and Bajas at a track near the old Fremont Drag Strip where they used them for their performance value and reusability. These days I run a K&N filter in my '99 Ranger, where I picked up just over 1 mpg with just the filter change. I still use a K&N in my old Single Cab, which since 1981 has sported a 351 Ford Windsor engine and Ford drive train (over 60,000 miles). My '82 Yamaha 650 Seca still has the K&N air filter I installed at the first filter change over 52,000 miles back. There is also a K&N on my Café style Iron Head Sporty (48,000 miles), my wife's modified 750 Virago (two pod style filters), my '05 Triumph Tiger (added three HP on the dyno) and the '97 GS500 Suzuki I recently saved from the back of a neighbor's yard. I'm taking the time to write this because the K&N filter is a product which is truly as excellent as the manufacture claims. Besides the maximum star rating I also give K&N filter a 'two thumbs up.'
Kim Crumb, Forestville, California