Jim, I special ordered it from a company called Bakerprecision out of Califorinia. But, this place had ABSOLUTELY the WORST customer service I have ever had from ANYONE!!!! I found them on the net one night as being a S&B dealer with the correct size filter to fit the '03 Cobra listed but in a 10". So I called them to see about getting one and Of course they didn't have one in stock, so I asked if they could order me one and they said sure no problem but it would take 2-3 weeks to get it to me I said ok go ahead and get me one and I would like it with a Black end cap they said ok. Well, my time goes by and still no filter, I call and they say should be here any time, well to make a long story short 2 MONTH'S later I finally get my filter open the box and it is the correct size but it has a chrome end cap! Anyway, now that I have a part # any S&B filter dealer (Amazon) should be able to order you one. This S&B is just like the 9" & 12" one's everybody else is selling except it's just 10" instead and YES it does have the opening on the end as well, that is what the PS in the part # stands for (powerstack). I don't know if you could use a 12" filter will your PHP air box, but I bet you could use a 10". Hope that helps.Jim Vaccaro said:Who carries these Filters? How good are they?Do they come with open end?
Toad, sorry you're right, it IS the 6" that I have w/ the DC. And yes when I removed the 6" filter off the DC and ran it NO filter it picked up 3-4 hp near the top end. Some of that 3-4 hp could have been run-run variance, the other was probably a slight gain.OverToad said:Jerry, the DC filter is a 6", not a 9". Or, you've somehow managed to do what none of us have, and got a 9" from John?
So what your saying is that you picked up 3 or 4 rhp with NO filter attached, compared to the 6"?
Some information I've seen has told me that a 6" filter is good for up to 600 crank hp, while others say 475rhp is the limit of what it can take, and that a 9" is a must at that point.
I'm one confused Toad at this point......