Yes I've been pulling the 0420/0430 codes constantly starting about a month ago. It was finally time to do it.
Review:
Torque! I notice a lot more torque at lower RPMS. My car does not open up it's secondaries as quickly when I depress the gas pedal. This means that I stay in lower gears longer than normal. This feels awesome as I don't need to use more gas and I generally get more control. No quick jerky shifting with my l33t slushbox! (note that I DO have the TSS sensor fix which helped a shitload with the shifting)Also, the car would stop quicker when I let go of the gas. (note that I DO have the throttle hang fix for some whistley goodness)
I took a drive home from my friends tonight and at one point I had to grab onto the handle with both hands when the RPMs went to above 6000 RPMs to shift. This was when I was going 65-80mph(?) and had the overdrive off. The torque seemed to really kick in at the highest RPMS. I didn't expect it. lizard: I'd say there's more low end torque. The highest RPMs have a bit more power to them for sure as well though.
One odd thing is that mod seems to really take effect once the car is warmed up, especially at lower RPMS. I can't seem to notice anything special when driving for the first 15-20 mins. It could just be my imagination.
All in all it was a great mod especially since I had to get this done.... the lawful fix was not in my budget. The best part was taking off the Y and revving that sheeit up! The Duratec unmasked sounded like a Harley (imho).
NEXT STOP:
Modified Y pipe land.
Population: Me.
