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Originally Posted by mtmaurer8ooo
Remember everyone - there are no stupid questions...only stupid people. Just kidding and BTW I'm not calling you stupid.
No, it's not a stupid question and I imagine that most people who get a K&N hoping for HP and torque gains are somewhat disappointed. I had one on my Tahoe and I didn't notice a thing. A K&N FIPK or similar product on the other hand may help a bit more to further reduce turbulence in the incoming air and to more efficiently deliver the air to the intake, but on the down side most FIPKs that I have known add quite a bit to the engine noise in the cabin. Just food for thought.
As far as leaving the top off of the air box...not the best idea. Two reasons. 1. Yes the filter will prob get dirtier faster. and 2. If you leave the top off the box then the filter will draw warm/hot air from the engine compartment as opposed to drawing cool air from the stock inlet. It may expose the filter to more air, but again you probably won't notice a difference. Warm air is good in some cases, but too much can be a bad thing.
And as for the muffler...one reason you are noticing power loss is that you may have opened her up a bit too much. Your engine needs a certain amount of backpressure to run properly and the muffler may not provide that on the low end, but may build as you get up in the power band. You don't say what kind of vehicle and engine, but check the application to see if the muffler you got is correct for the application.
Hope this helps. M.
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I have noticed that I am a
few years older than most of the guys on this forum, so when you say the after market intakes are more noisy, it makes me think of my teenage years when we had carbs. The four barrels were loud when you kicked it in but we loved that sound. We even turned the breather cover upsidedown if you only had a two barrel to make it sound like four. Anyway, is that kind of what you mean when you say
loud?
Joe