Are these califonia smog legal?

If you use it by itself it is NOT CARB Approved. However, if it is used as a replacement filter for an existing K&N Intake System that IS CARB Approved, then yes.

What is the size/circumference of the hole?

The hole is 3 1/2 inch diameter

How do I install on my 04 gmc envoy?

Sorry about the bad news, but RC-4630 is a REPLACEMENT filter for a K&N Fuel Injection Kit, part #57-3036. It is NOT made to replace your Original Equipment filter. If you just want to replace your existing OE filter with a K&N, you will need to purchase a part #E-1009.

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K&N RC-4630DK Black Drycharger Filter Wrap - For Your K&N RC-4630 Filter

Product ID: 13167501

Details

Brand
K&N
Fit Type
Vehicle Fit
Number of Items
1
Number of Packs
1
OEM Part Number
RC-4630DK

⏳Extends filter service interval 2X

🧵Durable stitched elastic openings

🛡️Water-repellent silicone-treated polyester

€ 57.75

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Sold byAmazon SlovakiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🛠️ Keep your engine breathing clean and fresh—because your ride deserves the best!

SEAMLESS PERFORMANCE - Maintains engine sound and airflow without compromise
DOUBLE THE CLEAN TIME - Extends your filter’s service interval by preventing dirt and water intrusion
EFFORTLESS MAINTENANCE - Easily rinses clean with soap and water—no harsh chemicals needed
ENGINEERED FOR DURABILITY - Silicone-treated polyester with reinforced elastic ensures a snug, long-lasting fit
ULTIMATE FILTER PROTECTION - Wraps your K&N RC-4630 filter with a high-flow, water-repellent barrier

The K&N RC-4630DK Black Drycharger Filter Wrap is a premium silicone-treated polyester cover designed to protect your K&N RC-4630 air filter. It repels water and dirt, doubling the filter’s service life without affecting airflow or engine sound. Featuring durable stitched elastic openings for a perfect fit, this wrap is easy to clean and built to last 1-2 years, making it an essential upgrade for any performance-conscious driver.

Specifications

ASIN	B000E7BUJO
Automotive Fit Type	Vehicle Specific Fit
Best Sellers Rank	#641,247 in Automotive ( See Top 100 in Automotive ) #7,575 in Automotive Replacement Air Filters
Brand Name	K&N
Customer Reviews	4.2 4.2 out of 5 stars (50)
Fit Type	Vehicle Specific Fit
Global Trade Identification Number	00024844106674
Included Components	DRYCHARGER WRAP; RC-4630, BLACK
Item Type Name	DRYCHARGER WRAP; RC-4630, BLACK
Item Weight	0.01 kg
Manufacturer	K&N
Manufacturer Part Number	RC-4630DK
Manufacturer Warranty Description	LIMITED WARRANTY
Model Number	RC-4630DK
Number of Items	1
Number of Packs	1
OEM Equivalent Part Number	RC-4630DK
Shape	Round
UPC	024844106674
Unit Count	1 Count

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€ 57.75

Duties & taxes included

In stock

Sold byAmazon SlovakiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Slovakia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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