Well just installed my new K&N Drop in filter thursday. And man I didnt think I would be able to tell a difference but I can. Dont have to give as much gas to get rolling in first from a stop. And its nice to actually hear the turbo now. Pretty good little mod for the price in my opinion.
I dont know about the SRT4s but the K&N drop in panel filter was dyno proven to add a couple horses to the SRT10s...this was in contrast to the aftermarket CAIs tested that either gave no help or decreased power. Sounds like it works for the 4s too.
I have seen a few dyno's with stock filter then one right after with the K&N drop in. And it showed like 10 HP gain..............i can tell you from my experence now...........the stock paper filter just doesnt flow..........My spool up is quicker too............
Wow!...the stock filter must be made of paper towels to get that big of a gain from just a filter change....that is a very good cost/benefit mod..
yeah now just need to get a downpipe............stock one has 2 cats right after the turbo..............they really didnt want this car to go very fast..............lol
