Straight pipes would be at least 50% louder those 40 series are somewhat loud but nowhere close to straight pipes..I have a 65 impala with a 409 I’ve had 40 series flows for years. I recently straight piped it and let me tell you those flow masters are quieter than you think lol..I think the...
I just put a new one in my 65 I used Napa they had to special order it took like 3 weeks to get but works great and seems like a quality part. I think for some of these they are rebuilt to order.
Hello all I have been enjoying this forum for some time and thought it was time to post, I found this car about 2 years ago in a garage in cali had been parked since the 90’s car has right around 59k og miles runs and drives good and is a fun car. car came with the wheels it has on it..been...