I need your jeep expertise please, I am new to jeeps. I am considering buying a 1998 sport wrangler from someone. The jeep has an AEM brute force intake system and headers? Do any of you know what each of these items do and whether or not it a good thing to have on the jeep... Thank you for your help in this, I am trying to decide whether or not to buy this wrangler and i need theses questions answered... thank you