New to the site, had a jeep
wrangler, just bought an 03 jeep grand cherokee. Had a few questions. I was wondering what is a good quality performance chip to go in my 03 jeep
grand cherokee, and where can I find this product. Also if i make any changes to the vehicle, for instance, adding a high flow exhaust kit, or a performance chip, do I need to purchase a programmer and reprogram the vehicle or no? And finally, what are some other descently priced mods that can improve my jeep.