Well:
I do NOT like to be negative BUT:I ordered an Upper and Lower Ported intake from SuperSix, Said we got a Set in Stock,
$875.00 (600.00, 200.00 Core) Price was a Bit Steep, UPS shipping was 75.00 Bucks.
Got the parts, AND On the day of installation, Most all the guide Tabs were Broken Off,(as it come out of the Box) and Looking at the porting work: Very little difference from the stock pieces. SO I as him to return it, Gave me a Hard Way to Go, Said the damage must have been done in shipping, AND there Will be a Restocking Charge... I am not happy, BUT i sent it Back (UPS Shipping 25.00 (not 75.00),
The 3.7 L mustang Folks must be hurting for good quality Suppliers, SO buyer beware