Y2K5SRT
Enthusiast
Okay, make it three filters - it just wasn't as snappy of a title. 
Several folks asked for pictures of the different setups and I am more than happy to oblige. Sure enough, the postman delivered a beautiful set of bright green SRT-10 filters today, appropriately named "Green Filters" (clever, eh?). Okay, where to begin? How about pictures from the front of each set up while in the housing. First, the stock set up - note the resonator chamber front and center:
Next, the Green set up, that are the almost exactly the same size as the stock filters (more on this in a minute):
And finally, the K&N set up. This last one is decidedly different in that it has the K&N smooth "Y" tube which eliminates the various kinks and bends in the stock tube and also eliminates the resonator chamber:
Now if you look closely at that picture, you may notice something a little goofy. Unlike the stock tube which fits snugly all the way around, there is the smallest of gaps at the back of the housing. Nothing major and I would think largely ineffectual, but who knows...
Now the K&N filters are smaller than the stock and Green filters, which means less surface area. Or does it? One nifty feature on these filters is that they also have an open end instead of a closed panel as found on the stock and Green Filters:
So how much difference is the size between the K&N and the stock/Green filters? Pretty noticeable:
The above picture also gives you a pretty good idea of what the intake tubes look like. Here is what each of the set ups look like with the box opened up:
Now here is an uneducated observation: If you look at the above pictures, you will note that the stock/Green filters are packed in pretty tight in the back, as well as top to bottom. In other words, to a layman like myself it would seem almost as though the filters would have LESS "breathing room" as they are butted up against the housing on three sides. The K&N, while smaller, also has more clearance on all sides. Just an observation.
Okay, about those Greens. First off, I did NOT test them other than for fit and finish. Didn't feel like hooking everything back up with the stock tube just for the Seat of the Pants (SOTP) impression. Now about that fit: They seem like they are EXACTLY the same size as the stock filters from every angle:
Yet despite that impression, they took more work to get on than the stock filters. You have to really get your elbows into it to get them on the tubes - they are VERY tight. Maybe it is because my filters have 5800 miles of break-in, however I seem to recall they were always easy to pop on and off. Once you finally muscle them into place, the housing cover doesn't want to get on there as it does with the stock filters. Indeed, as this was strictly for photos, I gave up trying to get it to fit and screw back down. I imagine with a little work it should fit snugly and completely. Regardless, the REAL key is the airflow. The stock filter pleats are VERY tightly packed and even when holding it up to the light you can barely see any coming through. By contrast, the Green filters are spaced well and seem to allow a lot of light (and air) to come through. Here is what they look like from the inside:
I have no doubt these will gain horsepower of some sort, the question is how much. We will find that out on Sunday. Finally, I leave you with a picture of the stock intake tube, sans filters. I neglected to undo the various clamps on the K&N set up in order to take a similar picture, however I think this picture gives you a very good idea of what your air goes through as it enters the engine from the filters, including that big resonator chamber on the left:
Hope this post was of some interest, and once again a hearty thanks to JonB and PartsRack for the very generous loan of these filters to test on our Dyno Day. Watch for those results soon!
Several folks asked for pictures of the different setups and I am more than happy to oblige. Sure enough, the postman delivered a beautiful set of bright green SRT-10 filters today, appropriately named "Green Filters" (clever, eh?). Okay, where to begin? How about pictures from the front of each set up while in the housing. First, the stock set up - note the resonator chamber front and center:
You must be registered for see images
Next, the Green set up, that are the almost exactly the same size as the stock filters (more on this in a minute):
You must be registered for see images
And finally, the K&N set up. This last one is decidedly different in that it has the K&N smooth "Y" tube which eliminates the various kinks and bends in the stock tube and also eliminates the resonator chamber:
You must be registered for see images
Now if you look closely at that picture, you may notice something a little goofy. Unlike the stock tube which fits snugly all the way around, there is the smallest of gaps at the back of the housing. Nothing major and I would think largely ineffectual, but who knows...
You must be registered for see images
Now the K&N filters are smaller than the stock and Green filters, which means less surface area. Or does it? One nifty feature on these filters is that they also have an open end instead of a closed panel as found on the stock and Green Filters:
You must be registered for see images
You must be registered for see images
So how much difference is the size between the K&N and the stock/Green filters? Pretty noticeable:
You must be registered for see images
The above picture also gives you a pretty good idea of what the intake tubes look like. Here is what each of the set ups look like with the box opened up:
You must be registered for see images
You must be registered for see images
You must be registered for see images
Now here is an uneducated observation: If you look at the above pictures, you will note that the stock/Green filters are packed in pretty tight in the back, as well as top to bottom. In other words, to a layman like myself it would seem almost as though the filters would have LESS "breathing room" as they are butted up against the housing on three sides. The K&N, while smaller, also has more clearance on all sides. Just an observation.
Okay, about those Greens. First off, I did NOT test them other than for fit and finish. Didn't feel like hooking everything back up with the stock tube just for the Seat of the Pants (SOTP) impression. Now about that fit: They seem like they are EXACTLY the same size as the stock filters from every angle:
You must be registered for see images
Yet despite that impression, they took more work to get on than the stock filters. You have to really get your elbows into it to get them on the tubes - they are VERY tight. Maybe it is because my filters have 5800 miles of break-in, however I seem to recall they were always easy to pop on and off. Once you finally muscle them into place, the housing cover doesn't want to get on there as it does with the stock filters. Indeed, as this was strictly for photos, I gave up trying to get it to fit and screw back down. I imagine with a little work it should fit snugly and completely. Regardless, the REAL key is the airflow. The stock filter pleats are VERY tightly packed and even when holding it up to the light you can barely see any coming through. By contrast, the Green filters are spaced well and seem to allow a lot of light (and air) to come through. Here is what they look like from the inside:
You must be registered for see images
I have no doubt these will gain horsepower of some sort, the question is how much. We will find that out on Sunday. Finally, I leave you with a picture of the stock intake tube, sans filters. I neglected to undo the various clamps on the K&N set up in order to take a similar picture, however I think this picture gives you a very good idea of what your air goes through as it enters the engine from the filters, including that big resonator chamber on the left:
You must be registered for see images
Hope this post was of some interest, and once again a hearty thanks to JonB and PartsRack for the very generous loan of these filters to test on our Dyno Day. Watch for those results soon!
