Ok so today I went to get my Prochamber Installed at my local mechanic and they wouldnt do it because its illegal so I deside to go ahead and give it a try. So I put the car on to ramps and it was high enought to were you could lay under the car and move around. So we got the sensor clips uncliped which were a pain but once you did it it was pretty easy. So we disconnected the cat-back and started on the manifold bolts. This is were things Stopped. We couldn't loosen but one bolt on the drivers side with hand tools. We even broke a new Universal Joint. So we moved up to an impact wrench. We got 3 bolts totally off the manifolds. 2 on the Driveside and 1 on the back passengerside. Now the front PassengerSide is in a tight location againts the body. We Used two different Impacted wrechs with an impacted joint at 90psi and 130psi and could not brake it loose. So after 5 hours of trying we desided to quit and put it all back together. So after another annoying hour of messing with the stock H pipe its all back on execpted the back passengerside bolt which wont thread onto the stud. So i figure if the other one is so tight i could drive on one bolt without worry. Im so pissed off about this, why is it so tight. I dont know what to do and its so close to geting striped but you can still get a bite on it. My firend says he can get the right swile socket other wise theres this guy with a muffler shop who I hear will do it. Any Ideas? Thanks