Stock Air Intake - Why?

Instrumental

Original poster
Member
Jan 29, 2012
268
As I've done some work on my 9-7x and done some reading, I see that the air intake has a lot of funny shapes in it. I also see that it's a very common upgrade to remove all that. So, what was the original thinking about this design? It seems it would have been much cheaper to go with a straight intake in the first place, so they must have had a reason to do all that work and expense.

:confused:
 

Don37725

Member
Dec 8, 2011
34
A lot of it has to do with sound control - they use different shapes and sizes to control the sound of the rushing intake air
 

DJones

Member
Jan 21, 2012
701
St. Petersburg, Florida
I once had a pipe-type setup from K&N and it made tons of noise, but I don't really remember what performance was like. Regulator has it now. The stock one is much quieter.
 

Regulator

Member
Nov 20, 2011
2,496
Yes, it is almost entirely for noise control. The K&N uses a strait pipe, it sounds great and I think I feel a bit of a difference in the pedal, but that may be just my imagination.

Disclaimer: The K&N is on my Bravada, not on my Envoy.
 

smitty5150

Member
Nov 18, 2011
1,069
I noticed no difference in performance other than the tendency to get on the pedal more...when i first install an aftermarket intake. Louder, yes. Gains? 1-3 HP at best. It's been said, the main thing holding back power is the restrictive flow of a stock head. With a ported head, I would imagine a straight intake would actually benefit HP in a measurable capacity.
 

fadyasha

Member
Dec 21, 2011
1,134
No performance really. I agree it's mainly sound gains which is nice. As for HP not really :smile:
 

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