dobboy 231 2 Cars Posted January 25, 2018 Does anyone have an opinion on what the best type of performance air filter is? Pipercross Foam filters v's K&N's paper filters? TIA Share this post Link to post Share on other sites
welshpug 1,621 Posted January 25, 2018 not seen any paper filters to fit over throttle bodies so I would say foam ones are best K&N are cotton btw. Share this post Link to post Share on other sites
dobboy 231 2 Cars Posted January 25, 2018 Cheers WP, Yeah cotton. Pipercross say theirs is 30% less restrictive over standard, but i can't find what K&N say. Both re-usable, but Pipercross quite a bit cheaper. Pipercross it is. Share this post Link to post Share on other sites
welshpug 1,621 Posted January 25, 2018 if its a stock oem airbox the proper original filter was a foam one, fram used to make a replacement too. 1 Share this post Link to post Share on other sites
Batfink 201 Posted January 25, 2018 My understanding is foam is better for power, cotton more durable. 1 Share this post Link to post Share on other sites
acox99 71 1 Cars Posted January 27, 2018 ITG make a reusable foam filter for the standard air box. 1 Share this post Link to post Share on other sites
