Overview Reviews Product Description K&N adapters allow for even more air filter applications. Product Videos Custom Field Category Air Intake Systems>Air Intake Components MPN 21512-1 Clearance Item N Product Reviews Write a Review Write a Review × K&N Engineering K&N Universal Adapter 6 Inch Filter 3.5in Coupler - 21512-1 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *
Quick view Details K&N Engineering | sku: KNN21510 K&N Adaptor 57-2535 Num 350 - 21510 MSRP: Now: $26.99 Add to Cart Quick view Details K&N Engineering | sku: KNNRU-2510 K&N Universal 4 Inch Filter - RU-2510 MSRP: Now: $42.39 Add to Cart Quick view Details K&N Engineering | sku: KNNRU-4860 K&N Filter Universal Rubber Filter 2 1/2 inch Flange 6 inch Base 5 inch Top 6 1/2 inch Height - RU-4860 MSRP: Now: $55.19 Add to Cart Quick view Details K&N Engineering | sku: KNNRU-0620 K&N Filter Universal Rubber Filter 2 1/4 inch Flange 3 1/2 inch OD 6 inch Height - RU-0620 MSRP: Now: $46.39 View Details
Quick view Details K&N Engineering | sku: KNNRU-2510 K&N Universal 4 Inch Filter - RU-2510 MSRP: Now: $42.39 Add to Cart Quick view Details K&N Engineering | sku: KNNRU-4860 K&N Filter Universal Rubber Filter 2 1/2 inch Flange 6 inch Base 5 inch Top 6 1/2 inch Height - RU-4860 MSRP: Now: $55.19 Add to Cart Quick view Details K&N Engineering | sku: KNNRU-0620 K&N Filter Universal Rubber Filter 2 1/4 inch Flange 3 1/2 inch OD 6 inch Height - RU-0620 MSRP: Now: $46.39 View Details
Quick view Details K&N Engineering | sku: KNNRU-4860 K&N Filter Universal Rubber Filter 2 1/2 inch Flange 6 inch Base 5 inch Top 6 1/2 inch Height - RU-4860 MSRP: Now: $55.19 Add to Cart Quick view Details K&N Engineering | sku: KNNRU-0620 K&N Filter Universal Rubber Filter 2 1/4 inch Flange 3 1/2 inch OD 6 inch Height - RU-0620 MSRP: Now: $46.39 View Details
Quick view Details K&N Engineering | sku: KNNRU-0620 K&N Filter Universal Rubber Filter 2 1/4 inch Flange 3 1/2 inch OD 6 inch Height - RU-0620 MSRP: Now: $46.39 View Details