I bought a 96-98 prochamber I got used and tried putting it on my '99 gt today because it supposedly fit my car. It all seemed to be going well until I got near the end. I have the gasket in there for the passenger side, that side is fine and is not leaking. On the driver's side however, I can't get the pipe to fit snug into the exhaust manifold. Theres spacers on the bolts that go into the exhaust manifold and the flanges get tight but the pipe is still loose. Anyone else ever have this happen? Is it because my car is a 99 and the prochamber is a 96-98? Also the O2 sensor plugs dont reach all the way to the spot where you plug them in. I spent all day doing this and now it sounds like **** because it's leaking