Intake from ebay

The reality is that the kit you posted is so inexpensive, you could totally afford to buy and install it, then replace the filter with a higher quality once it has served out it's life.

In the FX world almost every generic and FX specific intakes out there work as well as OEM - even home made (aka, "custom") intakes do the job just fine. A 3" tube to connect the Throttle Body to the MAF is all you need along with the filter. Other optional/upgradeable parts are heat shields, velocity stack, clamps and couplers.

I completely agree with Shadow - most of these theories just don't have much impact on the actual performance.

In fact, if you are into doing this mod, you can really do it yourself with parts from either one of these sites:

http://www.siliconeintakes.com/

http://www.spectreperformance.com/#CATALOG

The major difference will be sound at Wide Open Throttle - it'll be louder. At normal speeds you might notice a change in tone - but not in a bad way. I personally felt a difference in the butt dyno - acceleration felt more free and open when I was agressive. Dyno numbers for such a small modification would probably be in the 3-6whp range, but that improvement also shows itself in fuel efficiency - your MPGs should go up after installation - unless you begin to drive more agressively, of course.

Again, for as cheap as this kit is I think it's worth a try. Do the install with a buddy who knows about cars tho - it'll be easier and less stressful that way!
 
I don't want to argue with you Shadow, but "no difference" and "not a big enough difference for me to spend money on" are two very different things. Sure it's not the difference that a supercharger makes, but it is a difference.

Also, we are talking about Injen's cold air intake for the 1st gen FX, not any intake Injen has ever made for any vehicle. I implore you to find a dyno comparison of the intake in question that shows a power loss. Here's a starting point that will save you about 5 hours of reading: I misspoke earlier when I said it was introduced in '07. It was '04...

Here's the first thread I could find about the intake:
http://shannon.v8eaters.com/viewtopi...b92e4bf#p14355

Here's Injen's introduction thread:
http://shannon.v8eaters.com/viewtopi...79d8c&start=25

Here's the thread started by the first guy to install said intake:
http://shannon.v8eaters.com/viewtopi...7011474d9dff3d

Here's the first of the G-Tech comparison results:
http://shannon.v8eaters.com/viewtopi...02e3b6ab92e4bf

and another good one:
http://shannon.v8eaters.com/viewtopi...359be3e252ce84


Finally, that "K&N oil causing MAF failures" is another myth of which no proof exists.
 
I think we're just going to agree to disagree on this one. You have your experiences and I have mine. By no difference, I literally mean no measurable difference in performance (although I'm sure there is a difference in flow). Intake companies will often claim 5 hp, but that's easy to do. I could dyno a stock car 10 times and there would be 5hp variance. Maybe the intake really does make a couple of hp, but if I can't verify that number on a dyno consistently, I don't consider it worthwhile. And if it can't produce even a slightly faster time at the track, then it's not worthwhile. So maybe 2 hp is worth it to you, but 2hp definitely isn't worth it to me, especially not when it will cost me $200.

when I speak of the Injen, it's not just the FX. It's the same in the Lexus world, some guys made power, some lost. Same with Maximas, some guys gained, some lost. And it's the same for all similar style intakes, not just the Injen. People got the same mixed results for the LMS. On the IS350 (I used to have one), no one could really definitively make power with any filter on a stick. The only intake that made a little power was the JoeZ and that's just like the Z tube in that it kept the stock airbox and replaced the pipe.

FWIW, I know the K&N doesn't blow up MAF's. Just like HKS' don't result in early engine failure because it's foam. I was just making the point that there is so much conflicting info out there.

tchuck said:
I don't want to argue with you Shadow, but "no difference" and "not a big enough difference for me to spend money on" are two very different things. Sure it's not the difference that a supercharger makes, but it is a difference.

Also, we are talking about Injen's cold air intake for the 1st gen FX, not any intake Injen has ever made for any vehicle. I implore you to find a dyno comparison of the intake in question that shows a power loss. Here's a starting point that will save you about 5 hours of reading: I misspoke earlier when I said it was introduced in '07. It was '04...

Here's the first thread I could find about the intake:
http://shannon.v8eaters.com/viewtopi...b92e4bf#p14355

Here's Injen's introduction thread:
http://shannon.v8eaters.com/viewtopi...79d8c&start=25

Here's the thread started by the first guy to install said intake:
http://shannon.v8eaters.com/viewtopi...7011474d9dff3d

Here's the first of the G-Tech comparison results:
http://shannon.v8eaters.com/viewtopi...02e3b6ab92e4bf

and another good one:
http://shannon.v8eaters.com/viewtopi...359be3e252ce84


Finally, that "K&N oil causing MAF failures" is another myth of which no proof exists.
Click to expand...
 
shadow191 said:
I think we're just going to agree to disagree on this one. ...

when I speak of the Injen, it's not just the FX. ...

FWIW, I know the K&N doesn't blow up MAF's. Just like HKS' don't result in early engine failure because it's foam. I was just making the point that there is so much conflicting info out there.
Click to expand...

Agreed. Different perspectives are valuable in their own right.

You referenced the FX-specific Injen intake in post #11 of this thread and claimed that you believe it "lost power", which was the origin of the subject in this conversation. That was also the basis for my response. Lots of people reference that elusive Injen dyno and use it to discredit all kinds of intakes, but somehow nobody can ever find it. The one showing gains is in my last post...

Totally agree about the conflicting info online.
 
Now you've got me curious about the Injen on the FX. I probably should have researched it more, I've just seen the same claims as everyone else that it lost power. And since I've seen quite a few dynos where it lost power on other cars, I just assumed it was the same with the FX. I may have to get one of these cheap eBay intakes and take it to my friends shop. He's got an AWD dynojet and I get cheap time on it. Then at least I'll know for sure if an intake drawing air from within the engine will lose power on the FX.

tchuck said:
Agreed. Different perspectives are valuable in their own right.

You referenced the FX-specific Injen intake in post #11 of this thread and claimed that you believe it "lost power", which was the origin of the subject in this conversation. That was also the basis for my response. Lots of people reference that elusive Injen dyno and use it to discredit all kinds of intakes, but somehow nobody can ever find it. The one showing gains is in my last post...

Totally agree about the conflicting info online.
Click to expand...
 
Open cone intakes cause our ECU to pull timing at higher RPM's. I know Tony from Motordyne told a guy to put his stock box back on instead of the pop charger for a plenum spacer test.
 
shadow191 said:
Now you've got me curious about the Injen on the FX. I probably should have researched it more, I've just seen the same claims as everyone else that it lost power. And since I've seen quite a few dynos where it lost power on other cars, I just assumed it was the same with the FX. I may have to get one of these cheap eBay intakes and take it to my friends shop. He's got an AWD dynojet and I get cheap time on it. Then at least I'll know for sure if an intake drawing air from within the engine will lose power on the FX.
Click to expand...


That would be awesome!

One thing I wonder about is the relationship between peak HP and 0-60 times with the FX. Specifically, if it's possible to gain peak HP (Injen's claim) while having a slower 0-60 time (G-tech dude's claim) via a reduction in low end torque. Considering the FX only shifts once on its way to 60, it could go either way.

Just so you know, in keeping with the legend you are going to have to lock this dyno result up in a vault and only speak of it in tongues and at night...under a full moon. But at least you'll know the truth. :laugh:

---------- Post added at 04:57 PM ---------- Previous post was at 04:51 PM ----------
StuLax18 said:
Open cone intakes cause our ECU to pull timing at higher RPM's. I know Tony from Motordyne told a guy to put his stock box back on instead of the pop charger for a plenum spacer test.
Click to expand...

I read that thread. The point of the stock air box re-installation was to enable a comparison on a bone stock vehicle. There's enough drama in that saga for 3 daytime Emmys...
 
tchuck said:


I read that thread. The point of the stock air box re-installation was to enable a comparison on a bone stock vehicle. There's enough drama in that saga for 3 daytime Emmys...
Click to expand...
Yeah, it was fun to see the testing done though. Got me a free Motordyne shirt, and really cheap spacer. Still got some timing pulled anyway though with stock airbox, so who knows.
 
StuLax18 said:
Yeah, it was fun to see the testing done though. Got me a free Motordyne shirt, and really cheap spacer. Still got some timing pulled anyway though with stock airbox, so who knows.
Click to expand...

I assume by "pulled" you mean advanced. Every car does this. The reason is that the rate of combustion is constant regardless of rpm, so in order to have the moment of peak energy occur in the right place in the cycle (11-ish degrees ATDC) the timing has to be advanced as the pistons move faster. Sort of like how a baseball batter has to start his swing earlier with a pro pitcher than he would with Obama on the mound. :laugh:
 
I think I saw a thread with someone who only took the back part of the box off so the popcharger was still operational.
Click to expand...

Wow, I am an idiot... I meant the Power Duct not popcharger. And the picture was from Dr2K's ride. I'm gonna go fill up my car, its the green handle at the gas pump, right? haha...:shy:
 
Not to beat a dead horse, but look at this from the IS-F forums.

http://www.clublexus.com/forums/is-...t-indep-dynos-for-injen-and-afe-takeda-8.html

An Injen intake actually lost 18whp over stock and a similar AFE intake lost 20whp over stock. When he posted the dyno, everyone thought that the highest number had to be Injen, but it ended up being stock. If you read the rest of the thread, everyone swore that their aftermarket intakes felt much faster. Then the dyno numbers come out. Of course, it's just one persons testing and there are a lot of factors at play. But I was still surprised at the numbers. The really amazing thing is that AFE Takeda claimed 16hp gain (and lost 20) and the Injen claimed a 26 hp gain (and lost 18); that is a huge discrepency.

I've been looking at picking up an IS-F later this year so I've been lurking the forums there a lot.
 
A few reasons; it's quite a bit cheaper than an M3 although an E90 M3 is under consideration (I need 4 doors with the family), I can't get a manual because the wife will be driving the car a lot (so even if I get an M3, it's DCT), and I used to own an IS350 and loved it. The only reason I don't have it anymore is that it was totalled.

gmgagne said:
why an is-f? get an e92 m3, MANUAL
Click to expand...
 
shadow191 said:
A few reasons; it's quite a bit cheaper than an M3 although an E90 M3 is under consideration (I need 4 doors with the family), I can't get a manual because the wife will be driving the car a lot (so even if I get an M3, it's DCT), and I used to own an IS350 and loved it. The only reason I don't have it anymore is that it was totalled.
Click to expand...

aw thats a bummer, well i can assure you the DCT is much better than the 8 speed in the IS-F. and you cant compare it to a BMW interior and M suspension.
 
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