|
Honestly, a properly flowing and working cat provides very little backpressure, and therefore will make very little (if any) difference in both power and mpg.
Flow speed makes torque, not backpressure, so hollowing out the cat won't hurt low end torque at all.
__________________
Call me crazy, but I actually try for mpg with this Jeep:
Typical driving: Back in Rochester for school, driving is 60 - 70% city
|