GoHuskers

I have the pro dry s drop in filter and I LOVE the sound at about 2000-2500 rpm, above that the engine noise and wind noise take over. I have no issues yet for about 14000 miles.

pinoyesv6

I had the AFE Pro Dry S drop in filter previously and ran it for about 40k with no issues whatsoever. I recently swapped to one of those ebay intakes with an upgraded cone filter, aka having an open filter element in the engine bay. My truck sounds so badass coupled with my catback exhaust, it really makes me smile. Fuel economy has dropped slightly, most likely due to my heavier foot. People can scream and shout about how the open element in the engine bay is bad for the engine and how the warm air is bad for performance, I personally don't listen to that. I haven't had any negative experiences with that type of setup in my other vehicles, driven over half a million miles so I'll continue to use it for as long as it keeps that smile on my face.

Comparing the new AFE setup, with stock, i can see a slight performance boost since you increase the airflow. There will also be a slight sound difference not only because of the airflow but you delete the resonators the stock tubing had. I'd definitely consider it if I didn't already have a similar setup.

ahiskydivr

so did you end up getting the filter as mentioned above?

Smokeyyank

I just put in one of the filters in the GX. Main reason was just not having to swap out dirty filters. I haven't noticed any difference in "power". I do have on the full AFE intakes on my jeep and LOVE it. Made a huge difference over stock.

ahiskydivr

So on the Jeep you do notice power change?

natehack

Had a unit very similar to this on our 5th Gen 4Runner.

The resonating and noise when pulling a trailer was atrocious; particular engine RPMs would vibrate items in the cabin.

Maybe our smooth V8s would quell the racket, but I just went with the Pro Dry S in the stock box this time.

Smokeyyank

Yep. Throttle response and low end improved. Once I added in the bored throttle body 3" exhaust and chips it runs like a raped ape.

Acrad

Installation pics

situman

So this thing basically does nothing but add noise.

tecman

Some MINOR improvements in performance are gained.

Lavrishevo

iTrader: (1)

Same story on the LS and SC. OEM intake very well deigned. Best gains are extrude honing the intake manifold and headers.

skrypj

My tuned and modified F150 Ecoboost had a carquest paper filter. There is a pressure sensor just after the filter that I can monitor with my OBD reader to tell me what the pressure drop is across the filter. At WOT consuming 38 lb/min of air or ~380 hp at 6500' of elevation, my F150 only sees ~a 5% pressure drop through the stock filter. So if I could find a perfectly unrestricted intake I could potentially gain 5% power(~19 hp), but no intake is perfect. So the reality is maybe 2-3%(9-11 hp)

Meanwhile, the GX is flowing 24 lb/min at this same elevation through a similar size filter. I would be impressed if it had anywhere near a 5% pressure drop.

Easiest way to test this is do a WOT pull and monitor the MAP sensor. See what kind of pressure loss you have in the manifold vs the ambient pressure. Then you might have an idea of what an intake could do for you.

skrypj

You make the filter with a much larger surface area so that the air can pass through at a slower velocity. Thats how.

S&B, AEM, and AFE dry filters are all pretty good filteration wise. The AEM and S&B's are basically even with paper filters in terms of efficiency.

Dazed

Not a value add post:
I too would like a pony and be sure to throw in the OEM diesel engine while you're at it.

therednsx

Makes a bit more noise (sounds like a V8, but respectable), If you're heavy on the gas pedal you'll be happy until it's time to get gas. If you're easy on the gas pedal, you'll be please (especially on cross country trip). In my humble opinion, the GX doesn't need this, but here's my thoughts and experience on this item.The most notable improvement is while using the cruise control. The GX dosen't drop down a gear and rev up the engine on inclines as often after installation. That extra increase in torque makes for a more comfortable experience. Those with adaptive cruise control will benefit the most here. The price is a bit steep, but I'd buy it all over again (highway driving). As for the "why didn't Toyota/Lexus make it factory" question. TRD has a version for Toyota trucks and the AFE is louder than the stock GX intake. Highly recommend not stretching oil change intervals if installed. I've personally had good results with my AFE intake install over the last 30k miles, but Toyota is notorious for de-tuning their engines to increase reliability. I pushed my 88 Supra's boost until the head gasket and crankshaft bearings required replacement. Then I put it back together and drove it for 3 more years. Botton line the GX isn't a sport car, but the AFE intake has its pros and cons. If you're a responsible driver, good things will come. Change the oil and stay within the vehicles specified limits when towing. FYI; no notable benefits from the AFE throttle spacer. I hope this helps