stw1991
New Member
I have a newly aquired 1974 Plymouth Valiant, all original bone stock 318 v8. I recently was working under the car and noticed that it appeared the car had bottomed out at some point due to worn out leafsprings. It appears to have either a muffler/resonance chamber or an early CAT of some kind in the exhaust system, and has a huge folded crese/folded buckled area in the middle and I fear its crushed the innards and creating to much backpressure and not allowing the engine to "breathe". I want to get one of those stainless blanks that you can buy at autozone, cut out that folded muffler/cat of sorts and clamp the blank in place, but im concerned about removing the muffler/cat as I dont want to lose performance due to giving the engine less backpressure. Will this affect my performance? Will I lose or gain any? any help would be greatly appriciated!