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Late last summer I installed a K&N filter on a stick and noticed that
my egt's ran a little higher than before when I had the oem system.
Could the fact that it is exposed to the engine heat be the cause
for the rise in egt's?
My 250 is an 2002 SC , Banks big head wastegate,
4'' monster exhaust, Big Hoss level 4 tuner
pillar gauges
Is this K&N a cone style filter or drop in? I had a K&N FIPK on my truck and when I swapped the filter out for the 6637 I noticed that my EGT's dropped. The 6637 is alot bigger and flows more air than the K&N. Larger volume of air being moved and less restriction will lower your EGT's. I would try the 6637 filter from NAPA (it is only $40) and see if your EGT's drop. Hope this helps.
Yes it was a K&N FIPK , I have read a lot of positive
feedback on the 6637 I'll pick one up.
I only regret not finding FTE sooner, I got lot's of
questions .
Thanks Travis for the response
Do you still have the factory airbox? you might need the tube off of that to fit the 6637, unless the K&N FPIK only replaced the filter box and dint require you to remove and replace the intake tube.
The 6637 will fit over the end of the FIPK tube. You will need to remove the heat shield and trim some of the plastic off the back of the battery tray to fit this monster. The air sensor that goes into the heat shield can be ziptied to the master cylinder. I mounted mine on a bracket just to the left of the master cylinder and the sensor actually lies very close to the intake. I hope this helps.