Thread: 99 GTP runs fine cold, seems to lose a cylinder when up to temp?

Originally Posted by gtpinsc

bad cat... get a whole new downpipe here ZZPerformance get a 3inch pipe, converter is included. 5 years never changed plugs and wires? wtf.

Thanks for the feedback, I know, 5 years (60k miles) is unforgivable, I live in the rust belt so the car is rusting pretty bad, I don't want to put too many $$ into it, especially after this f%#$ing recession...I've done some more reading and I'm going to have my my mechanic check the pressure in front of the cat this Friday, as well as change the plugs/wires, I'll keep everyone updated...thanks guys!!