Would a cat delete on a 2000 mustang gt drop my gas mileage?
Looking to cut them and replace them with pipe. Wondering if it would hurt my MPG. Also, if I don't replace the two rear O2 sensors will it effect my performance or just pop the check engine light on?
You can get an O/R H-pipe from Jegs for pretty cheap. Which is what I would do instead of hacking up the stock one.
I dunno what it would do to gas mileage because I give two-tenths of a f*ck about my gas mileage.
Use these for your rear O2s : Mustang Plug-in MIL Eliminators at AmericanMuscle.com - Free Shipping!
The back 2 o2 sensors only monitor catalitic converter efficiency. So you cel will come on but it's nothing to worry about. Buy a tuner and shut them off
I just put an o/r h on my car and my gas milage has gone down2-3 mpg but I think its because I love the sound so much I'm reving it higher before I shift
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Related Threads
?
?
?
?
?
Modded Mustang Forums
6.3M posts
80.3K members
Since 2005
A forum community dedicated to all Ford Mustang owners and enthusiasts. Come join the discussion about performance, racing, builds, modifications, troubleshooting, maintenance, and more!