I use a NAPA GOLD one, I have seen a few turbo guys use em, hopefully it isnt superbootleg, so far its been good..........

 

I have used ford motocraft, Mobile One and K&N filters with out any issues. The filter size on my oil relocation kit is very large.

 

ams

 

Stock or K&N

 

I found my data from datalogging oil pressure with a few different setups. Anybody who isn't datalogging oil pressure can't say for sure that one is better than the other. I raced all year on Fram and Honda filters with no problems, but once I put the Motec M800 on the car and started logging all that stuff I started seeing that oil pressure was dropping up top. A switch to the K&N filter cured that. I don't know exactly what it is that is different and gave me that result, but it has been consistent and logged accurately so take it for what it's worth.

 

^^ good to know any one else have datalog proof would like to c other filter results

 

good info for sure.

 

I've been using Hamp filters ever since I got the S new back in 03 and have continued using them on my turbo setup that I put on the car 4 months after I purchased it. I currently have around 13,500 miles on the car with 10,000 of that turbo'ed with the Hamp filters and I haven't had one problem. I believe they are a very good filter. If I remember right, I purchased a case of 8 or 10 of them back in 03 and it ran me around $70. I can't remember where I got them but I really need to order more soon. I think I only have one left. Does anyone know where you can purchase the 8 or 10 case of them?

 

I figured this out a few years ago, the K&N and Mobile filters are made in the same factory to the same specs. The only difference is the little hex nut at the end.