Asgaard
Well-Known Member
Ok, I don't really get how the k&n could hurt the power. The stock air collector still brings cooler air up to the k&n filter which is larger and the pipe leading to the TB is slight straighter and larger. I have a 14si so it might be different for me but I felt I had a little better throttle response. I do not have a tune. Could someone tell how it is worse? I can understand minimal gains or none. But worse? Something doesn't add up
My HFP felt way more responsive when i ended up removing it to sell the car... it was the only bolton i add w/ stock tune.