Haddix,
M46 is an option that you will only find on a barracuda in 1970 only.
Simulated rear quarter scoops, Non functional, just for looks.
It had a black out on the bottom sides, a blacked out tail panel and a blacked out grill and valance.
The top of the side black out had a blue and white or red and white reflective stripe.
Very few made.
I've found 4 in 8 years. All with major problems. Major money also.
Check mopar hunters posts and you will find his introduction. MoparAl posted pics of his M46.
I have tried to use the search engine to get many of my past posts about M46's but the search here sucks.
If you look through my posts you will find many a picture of M46's.
Hope this helped you .
