How much of a noticeable difference is there between the K&N replacement and a new OEM air filter?

 

I could feel a difference. It's a good mod if you are going to keep the stock air box.

 

worth the money

 

OK, thanks

 

I didn't notice any difference. Maybe there is a 3-5 hp gain but that's not really noticeable. I got the K&N because it's washable and wasn't expecting much performance gain. I think it's not worth it.

Get a DP as your first mod. It's definitely worth it and makes a difference.

 

also agree, but i paid $20 for my filter

so it was worth it