Quote:
Originally Posted by tsk1979  A free flow means no CAT. So you wont confirm to emission norms and the manufacturer has the right to withdraw warranty. |
In the other thread (Automech) it was mentioned that free flow can be fitted without removing the CAT. Also fitment of free flow does fall within the limits of emission norms (increase from 10% to 25%). Even the sound levels are within the permissible limit of 55 db.
Here's the link for automech thread
http://www.team-bhp.com/forum/modifi...hausts-18.html (automech exhausts)