My plan is to install 2 Magnaflow Metallic Spun Hi-flow converter with a Magnaflow di/do muffler. All in 2 1/4". I talked to the muffler shop and he says the hi-flow cats won't fit. I am looking for a pic of this setup so I can show it to him. I searched and found good pics with the di/do muffler but none with aftermarket hi-flow cats. Thanks for any help.