K&N High-Flow Air Filter
33-2232 Product Specifications
Product Style: Panel Air Filter
Height: 1 in (25 mm)
Outside Length: 11 in (279 mm)
Outside Width: 6.563 in (167 mm)
Filter Re-Oiling Amount: 1.05 oz (31 ml)
Weight: 1 lb (0.5 kg)
Product Box Length: 13.5 in (343 mm)
Product Box Width: 7.75 in (197 mm)
Product Box Height: 1.75 in (44 mm)
•High Air Flow with Excellent Filtration
•Designed to Increase Horsepower and Acceleration
•Washable and Reusable
•Will NOT Void Vehicle Warranty
•Lasts up to 50,000 miles before cleaning is required depending on driving conditions
•10 Year / Million Mile Limited Warranty
•Emissions Legal in all 50 US States.
•Economical, a K&N Air Filter Will Last the Life of Your Vehicle
•Works with Original Equipment Manufacturer Vehicle Electronics
•Environmentally Friendly, K&N Reusable Air Filters Reduce the Volume of Disposable Air Filters that end up in the Nation's Landfills
Author
yzercyber Registered User
Registered: February 2003 Location: nether reach of CA delta Posts: 409
Review Date: Fri February 4, 2005
Would you recommend the product? Yes |
Price you paid?: None indicated
| Rating: 10
I wanted to improve intake but didn\'t want to replace the stock intake, which is supposedly rated for at least 300HP. Replacement of stock Subaru intake box will decalibrate MAF/ECU values, and I don\'t want to pay for the dyno and tune time to remap this.
The K&N filter is a simple install. Subjective evaluation: I observed spool-up on the turbo gauge and tach while running in fourth gear. I floored the accelerator and watched the climb from 2500 to 3000 RPM. I didn\'t feel any improvement in power with the K&N installed, but my stock turbo seems to start spooling up 200-300 RPM earlier with the K&N high-flow panel filter than it did with the stock filter.
some K&N part numbers for the WRX:
2002/03: 33-2232
2004/later: 33-2075
slouie Registered User
Registered: May 2005 Posts: 26
Review Date: Fri September 9, 2005
Would you recommend the product? Yes |
Price you paid?: $45.00
| Rating: 8
Pros:
Easy to install and will last forever
Cons:
No hp gain felt after paying $45
Took about 3 minutes to install and supposedly will last for 1 million miles, but after installing this filter I felt no difference driving my car and didn\'t even hear any difference from the stock one....
DomozitoLK VIP Member
Registered: April 2004 Location: Northern California Posts: 694
Review Date: Thu September 15, 2005
Would you recommend the product? Yes |
Price you paid?: $25.00
| Rating: 10
Pros:
Helps intake breathing. Reuseable.
Cons:
None
I bought it used from an i-Club\'er from Roseville with 20K miles on it in his 2005 (part number 33-2075). Cleaned it, reoiled it, and installed it. It\'s what I expect from drop in filters (I\'ve used them in all my cars), flows a bit better than stock paper filters. Throttle response feels slightly better and top end pulls feels improved on my 2004 WRX. It\'s not a \"wow\" mod that says...I gained 50hp or anything like that but the sum of all the mods I have, everything adds up and every little bit helps. It\'s also nice that I\'ll never need to replace the filter again.
------------------------------ Rob Thomas
2004 Subaru Impreza WRX
wu! Registered User
Registered: January 2004 Location: San Jose, Go Bears! Posts: 839
Review Date: Sun August 27, 2006
Would you recommend the product? Yes |
Price you paid?: None indicated
| Rating: 10
Pros:
Under throttle, you can hear a pronounced whooshing sound
Cons:
No noticeable power gains
This was very easy to install. You can definitely hear more of a whooshing sound under throttle compared to the stocker. I love the sound. It's too early to tell what the impact is to gas mileage.
04_4eat_WRX Registered User
Registered: January 2005 Location: Oakland, California Posts: 56
Review Date: Fri May 4, 2007
Would you recommend the product? Yes |
Price you paid?: None indicated
| Rating: 0
Pros:
easy to install and reusable
Cons:
none
easy to install and can be reuse, you can hear a woosh when you step on the gas pedal.
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