A drop in filter is a good idea but if you want a complete system go with the AEM set up. These sysyems use a larger tube then K&N plus the filter on the AEM has a CFM rating of 1350 . The filter on the K&N has a CFM rating of 650. Your car will only draw in as much air as the ENGINE MANAGEMENT SYSTEM calls for, but it is nice to know that if you have a stock car or a bulit car the filter system will be up to the task of drawing as much air as it needs.
Where can I find the CFM rating for those filters?
Where can I find the CFM rating for those filters?
I contacted the Tech departments at K&N, AEM . They gave me the ratings on the filters used in their CAIs for the 04-06 GTOs.
All of the filters used on CAI set up's like K&N, AEM, VOLANT, LINGENFELTER have more then enough of a CFM rating to satisfy everyone's needs. What you have to watch out for are some of the After Market Hi Performance filters that you find at places like Pep Boys and other part stores. Some of those filters will not work properly if you bolt them up to one of our CAI systems. If you purchase a CAI, always use the type of filter that comes with the kit.
I contacted the Tech departments at K&N, AEM . They gave me the ratings on the filters used in their CAIs for the 04-06 GTOs.
All of the filters used on CAI set up's like K&N, AEM, VOLANT, LINGENFELTER have more then enough of a CFM rating to satisfy everyone's needs. What you have to watch out for are some of the After Market Hi Performance filters that you find at places like Pep Boys and other part stores. Some of those filters will not work properly if you bolt them up to one of our CAI systems. If you purchase a CAI, always use the type of filter that comes with the kit.
I have been running a Spectre stainless steel filter on my AEM for many months now with zero issues. It was also on the Dyno. with the SS filter, no problems.
I have been running a Spectre stainless steel filter on my AEM for many months now with zero issues. It was also on the Dyno. with the SS filter, no problems.
I purchased one of those off the shelf filters from Pep Boy's to use as a spare. I used it one time when I was washing my AEM. The off the shelf item made my car feel sluggish and it started throwing codes with in a few minutes of running. Don't know the name of it but it was a gray cone filter with a opened front. I replaced the AEM .Tossed the other in the trash. The PEP BOYs filter was the same size and diameter as my AEM but it was much more restrictive them the AEM filter.
Ive heard some bad things about K&N filters for other cars (dont know about GTO). Personally Im an Airaid fan because of the CAI on my jeep. It sounds awesome, good airflow, better compatability, and cheaper than K&N.
They dont make the airraid intake system for the GTO buy yes it is a nice system. Let's see (1) S & B intake system, (3) K & N intake systems, (2) VOLANT intake systems, (1) airraid intake system, and (1) AEM Brute Force intake system.
I have to say that the best of the ones I have tried go in this order. The latest purchase was the Volant Powercore CAI.
Ranking:
1. AEM
2. Volant
3. Airraid
4. K&N
5. S & B
I have also considered the True Flow intake system which looks nice and the new forgot the name canister style intake which looks really cool but was not available for the Sierra. I like the Volant due to the enclosed box. Since they made this new powercore filter which is dry i decided to give them another shot. Other than that, I would go with AEM.
They dont make the airraid intake system for the GTO buy yes it is a nice system. Let's see (1) S & B intake system, (3) K & N intake systems, (2) VOLANT intake systems, (1) airraid intake system, and (1) AEM Brute Force intake system.
I have to say that the best of the ones I have tried go in this order. The latest purchase was the Volant Powercore CAI.
Ranking:
1. AEM
2. Volant
3. Airraid
4. K&N
5. S & B
I have also considered the True Flow intake system which looks nice and the new forgot the name canister style intake which looks really cool but was not available for the Sierra. I like the Volant due to the enclosed box. Since they made this new powercore filter which is dry i decided to give them another shot. Other than that, I would go with AEM.
Just my .02
a closed box does what? what happens after the first microsecond and that air is used up? shielding from the engine bay is good but it's the source of the air that's important as well as the flow. the Volant isn't a bad intake it's just too much money for a little gain. if you like it for bling then that's cool if you have the cash. flow BTW is easily measured in MAP (manifold absolute pressure). a "100" means there is no restriction anywhere in either the filter, intake pipe, TB or manifold. high 90s (97-99) are realistic measurements under WOT. IATs close to ambient (3-5*) are desirable and the only measure of if it's pulling in cooler outside air. measurements from a dead stop up to WOT and the time it takes to get the lowest temp air are the benchmarks. no "feelings" as to the best is required. it's all measurable. as to the Pep Boys filter, they sell Spectre and the 9" cone Spectre flows more air than any of the commercial "C"AI filters. you don't have to have matching of "C"AIs to filters and the little power gain of any as far as SOP is in your head. you can't feel 5-8 HP. what you gain most from is cooler denser air, flowing freely so your timing doesn't get pulled and you pack the most O2 into the clyinder
__________________ 2004 Blk/Rd M6
12.34 ET, 113.55 MPH 1.82 60ft
I didnt say the enclosed box did anything in my post. I like the enclosed box set up because you dont have the gaps around the intaked tube leading to the filter and it has a enclosed lid at the top for less engine compartment heat to be sucked up in your engine... On my application with the volant... The opening to the Volant Air Box come directly from the fender well(unlike the GTO's). There is constant cooler air coming in through the fender well opening than the other units which are just open to the engine compartment which does mean cooler air... when i took off the factory air box unlike my goats, there was so much more passages for air to flow through before it got to the throttle body it looked like a trumpet...Thank you.
I didnt say the enclosed box did anything in my post. I like the enclosed box set up because you dont have the gaps around the intaked tube leading to the filter and it has a enclosed lid at the top for less engine compartment heat to be sucked up in your engine... On my application with the volant... The opening to the Volant Air Box come directly from the fender well(unlike the GTO's). There is constant cooler air coming in through the fender well opening than the other units which are just open to the engine compartment which does mean cooler air... Thank you.
PS.. Volant also makes an additional ram air scoop that you can attach to the box that is routed towards the front end of the vehicle(lower valance area) that can suck in even more fresh air(not engine bay heat)
A friend who has a Silverado that has the same set up also using a predator programmer is getting 30+ rear wheel horsepower... I believe it was like 34hp. My new superchips is on the way like I had on the goat.
Enclosed box? say what? Yea it was $300. But it is a very nice unit plus it does have some bling-bling!
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