Can any problems occur to my 97 cobra cause my right short header is leaking a lil bit where it bolts to my x pipe.

My car is stalling sometimes.

I changed
Battery and terminals
Iac
Cleaned the maf
New msd coils
New plugs and wires
Clean air filter

Any suggestions please

 

The only thing that it happened to mine was hp loss the car seem weaker and if it's cracked where it leaks you will hear a ticking sound thAt will get louder and louder till it completely breaks off then you'll have to remove it and get it welded back on