Quote:
Originally Posted by mjorgensen
The Viper motor still needs back pressure to make low end torque.If you remove the cats or 1/2 of them and go with a free flow exhaust then you may lose on the bottom and just gain on the top. I personally don't think that is a good trade that's why we advocate not removing the cats, don't really cost enough power up top to compensate for the loss down low. IMHO
|
I would imagine a cam with revised exhaust valve closure could gain that torque back and still take advantage up top.