K&N on TB good or no?
Thread Starter
Senior Member




Joined: Jul 2016
Posts: 783
Likes: 206
From: az
Car: 91 WS6 GTA
Engine: 5.3
Transmission: 4l60e
K&N on TB good or no?
Love the looks of the cone filter mounted to the throttle body..is there are dyno proof if it hurts or works or just for looks?
thanks
-james
thanks
-james
Supreme Member

Joined: Aug 2004
Posts: 1,214
Likes: 3
From: Norwich, CT
Car: '89 Trans AM/'88 GTA
Engine: (2) Tuned Port L98's
Re: K&N on TB good or no?
Not that I have any physical proof or paperwork.. but, the sheer location alone enables the heat to move
to the filter from the engine, radiator, and the heat that the radiator fans move.
In my opinion, it is probably worse than the Trans AM set up where the filter
was just sucking air at the front corner of the engine bay with no free access to ambient air.
Unfortunately, it DOES looks sexy.
to the filter from the engine, radiator, and the heat that the radiator fans move.
In my opinion, it is probably worse than the Trans AM set up where the filter
was just sucking air at the front corner of the engine bay with no free access to ambient air.
Unfortunately, it DOES looks sexy.
Member
Joined: Aug 2015
Posts: 126
Likes: 0
From: Key West, FL
Car: 1984 Z28
Engine: LG4 305/4bbl for now
Transmission: 5-Speed
Axle/Gears: 3.23 Posi
Re: K&N on TB good or no?
The only real think ive noticed from running open filters like that is the noise, it sounds great! I would try it, and see how you like it. they claim an HP increase but its something low like 6hp you wont notice, and like I said the sound it makes at WOT is amazing.
Senior Member
Joined: Jun 2000
Posts: 599
Likes: 0
From: Glenbeulah, WI
Car: 1988 Firbird
Engine: 406
Transmission: T-56
Axle/Gears: 4.10
Re: K&N on TB good or no?
It is not a good idea, the underhood heat will kill more power then keeping the stock set-up that draws cooler outside air. Every 10 degree drop in air intake temp is 1% gain in power. How hot is the underhood air, at least 150 degrees, especially if you are driving through town.
Supreme Member

Joined: Jul 2009
Posts: 2,328
Likes: 9
From: Kitchener, ON
Car: 1988 GTA
Engine: LB9
Transmission: T5
Axle/Gears: 3.45
Re: K&N on TB good or no?
No. Without doubt, cone looks cool. But oil bath filters do not remove all the grit from the air. Use a paper filter and the stock tract.
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