3.4 pulley installed!!!!!

[TheOtherNick]

If you had that much knock with those mods you have a REALLY bad tune. You don't need to throw mods at a car to reduce knock. Just tune it properly and you will get results.

Notice I said ZZP PCM.....Now I have no knock.

[a98gtp4u]

i do have an air intake installed on the car. im getting a custom made 3 inch catless downpipe put on on thursday so it should help alot.