Dual Headers for 1964 Plymouth Valiant slant six
I have used these many times.Not loud nice rumble.Drone depends on the car and engine itself.The Slant photo had a Bullet race muffler no tail pipe.,so it was loud. I used these DynoMax on Slants too.
My 373 Valiant had a drone on a up hill pull around 40ish mph. Same mufflers on my LA 318 Belvedere no drone at all.
You may want to use a resonator or not till you drive you ride.
I have used these many times.Not loud nice rumble.Drone depends on the car and engine itself.The Slant photo had a Bullet race muffler no tail pipe.,so it was loud. I used these DynoMax on Slants too.
My 373 Valiant had a drone on a up hill pull around 40ish mph. Same mufflers on my LA 318 Belvedere no drone at all.
You may want to use a resonator or not till you drive you ride.