Had my CA header and XTC dp on for 120 miles . I was wondering how long of a break in period should I give before I drive it normally (4000 + rpm) ? Thanks for any responses .

 

idk what it is actually supposed to be, but i took it easy on mine for 250 miles

 

500 miles is the standard break in for a cat.

 

well i've put a couple thousand on mine since and no trouble out of it, i asked around on here, some say there is no break in some say 250, some say 500 so idk i went with 250 since it was a happy medium

 

yeah 500miles is normal break in...dont go that fast..it will easily clog the cat

 

OK so 300+ miles . When you say don't drive it fast do you also mean don't rev it high ?

 

dont go WOT...or dont even try to rev it high..

 

What rpm is reving high ?

 

play it safe and wait the 500. look up how many "my cat is clogged, what a piece of **** downpipe xxxxxx sells" threads. or, look up all the cel's from bad cats. it's not worth it over 250 miles. i would just take the time and make sure you do it right.

 

Thanks for the info 500 it is and I'll drive like I own it instead of stoled it . Thanks again .

 

it's a good idea. there's people posting cat problems all the time. most likely from not being broken in properly. you may not notice the problems for a while, so people don't think it had anythign to do with break in.