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REVIEW: K&N Cold Air Intake (2004 Blazer)

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Old 12-17-2011, 03:10 PM
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Default REVIEW: K&N Cold Air Intake (2004 Blazer)

Install: 2004 Blazer - K&N Cold Air Intake w/heat shield

-Difficulty: 1 out of 5.
-Time: About 90mins with constant interruptions (texting).
-Tools: Requires drilling (need a drill w/drill bit) and calls for 7/32 socket, which I didn't have. My 8mm did just fine, though.

Benefits

-Estimated horsepower gain: 7.42 HP @ 4672 RPM (156.64hp to 164.06hp)
-Estimated torque gain: 8.29 ft-lbs @ 4672 (176.11 ft-lbs to 184 ft-lbs)
-Better fuel economy: Before install, I got 190 - 210 miles per tank depending on throttle aggressiveness. I will be reporting back with my new findings.

Here is a general product page (I purchased from www.ZMRmodifications.com): K&N CAI w/heat shield

Pics

Before:



Parts:



After:



Sound Clips

Before:

2004 Blazer: K&N CAI Install (BEFORE) 1 of 3 - YouTube

Under Hood (Idle):

2004 Blazer: K&N CAI Install (Under Hood) 2 of 3 - YouTube

After:

2004 Blazer: K&N CAI Install (AFTER) 3 of 3 - YouTube

I like it and highly recommend it! It sounds pretty beast while driving. It drives the same with my 125lb gf in the rig as it did stock and by myself.
 

Last edited by Shadow Blue; 12-18-2011 at 02:44 AM.
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Old 12-17-2011, 04:01 PM
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Nice review and props for getting those videos too! Great work!
 
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Old 12-18-2011, 02:40 AM
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Thanks! No problem. I thought it might help someone in the future as reviews/sound clips have always helped me.

BTW, your Blazer is SICK!!
 
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Old 12-18-2011, 02:55 PM
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Originally Posted by Shadow Blue View Post
Thanks! No problem. I thought it might help someone in the future as reviews/sound clips have always helped me.

BTW, your Blazer is SICK!!
Thanks!!

I was thinking of buying a used K&N a little while back but unfortunately college and life got in the way!

Like the way that thing sounds though, definitely will make people wonder what's going on under the hood.
 
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Old 12-18-2011, 03:37 PM
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I
I think that thing is really cool, how much horse power did it bring, and how much was it?
 
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Old 12-20-2011, 05:04 PM
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Originally Posted by RangerG View Post
Thanks!!

I was thinking of buying a used K&N a little while back but unfortunately college and life got in the way!

Like the way that thing sounds though, definitely will make people wonder what's going on under the hood.
When you can, I'd definitely recommend that you pick one up. By the way, I'll be PMing you about your front bars

Originally Posted by DaddysBlazer View Post
I
I think that thing is really cool, how much horse power did it bring, and how much was it?
^All of this info is in the OP.

I've been tracking my gas usage on a full tank since yesterday. I'll update you guys within a week.
 
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Old 01-29-2012, 10:51 AM
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awesome thread! inspired me to replace my Vortec with a K&N
 
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Old 01-29-2012, 02:21 PM
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20blazer02 check out spectre same performance better price. although i wanted the k&n intake more but i didnt have 300 bucks to put down i got the spectre for 150. I might end up get a k&n air filter for it tho
 
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Old 01-30-2012, 09:14 AM
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Thanks! Ive been checking them out now as well
 
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Old 01-30-2012, 01:08 PM
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Originally Posted by 20blazer02 View Post
awesome thread! inspired me to replace my Vortec with a K&N
Good man! The thread is a success, then

Originally Posted by 99bblazer99 View Post
20blazer02 check out spectre same performance better price. although i wanted the k&n intake more but i didnt have 300 bucks to put down i got the spectre for 150. I might end up get a k&n air filter for it tho
Theoretically...

If you go this route, though, look into an AEM Dryflow air filter. Not only is AEM owned by K&N but is also said to be a better filter. It's oil-free, easy to clean with a life-time warranty. Here's a link for reference:

AEM Air Filters, AEM Replacement Air Intake Filters, AEM Filters
 
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