Discussion Starter · #1 ·
Hi All, i have an 02 f250 6 speed with 143k miles. I dont drive the truck much but always like to fiddle with it. I have an edge evo programmer on tow mode. I rarely get over 1k temp on exhaust but i still would like to do something to improve the stock exhaust for temp and power. What are my legal options with a calif truck with a cat? Do the changes make any real difference or should i just leave it alone if there is only a marginal difference?