kareemRCF

Any suggestions guys?

afe dry? afe wet? any other one you recommend?

4everkidd

iTrader: (2)

Always dry...

The Lexus sensors don't like the oil

johnnyreb

I got the aFe 31-10167 Pro Dry S for mine (from Amazon for $67), it's the same one for the ISF (you can use the same one for the RCF).

AKA5

any benefit over the oem?

johnnyreb

I can't FEEL any Difference, as far as Anything Else maybe JC or one of the other guys could tell you if there's Any

JCtx

I'd bet my house there's none. Remember airflow vs filtration is always a compromise; can't have it both ways. Now, the engine only needs 'x' amount of maximum airflow, which obviously happens at WOT at redline. Any more airflow than that is wasted, because the engine can't use it. But that filter would be letting more dirt in, which is detrimental for the engine. Just look at a racing filter, like K&N. You can almost see thru the damn thing, so whoever doesn't figure out they're getting a ton more dirt, it's fooling himself. And thankfully there's a very simple test that kind of person can perform to see for themselves: blow dirt into both filters using a ShopVac, with a wet white paper shop towel underneath. After doing the same test on both, check out the paper towel and see which one has more dirt.

Bottom line is I've never seen a modern stock air filter that doesn't flow the maximum air needed by the engine, so I don't mess with them. Especially in the dusty desert southwest, where you want maximum filtration. Besides, those 'racing' filters also get your oil dirtier much sooner, therefore depleting the additive package quicker. And see how those companies are quick to point out their airflow (implying more is always better. It's not), but never mention filtration. Air filter restriciton used to be an issue decades ago, but not anymore. At least on a stock engine. But to each his own, of course. Hope this helps.

BPauto

Just to add in my observations, I had a couple of my clients swap out their factory intake for an aftermarket one and they didn't notice much of a difference either. They did mention a difference in sound and they thought they felt some improvement in responsiveness; however, I'm guessing any notice in performance improvements were minimal at best.