Gosh - the riff between the Ford Shelby GT 350 and Shelby America is substantial and I hope it goes away someday - they are flipping GT's into Shelby's in Vegas with Blown 5.0's - of course they want to sell you the Shelby America version - I respect the name, the man, and the offering of Bolt On's is their way or no way - I wanted to do a Wide Body conversion on 00350 in 2018... the deal breaker was they refused to use the Brembo's or the CF Wheels and wanted their branded hood, grill, splitter, and rear spoiler. The royalties paid for the use of the Shelby name are staggering and offers us an engineered machine from the factory that is not comprised of all off the shelf Bolt Ons.
Whipple doesn't invest their name into stuff that's gong to blow up their clients cars. They tune for either 91 or 93 octane based on your request - Hennessy bolts on the same kit and slaps his stickers all over it but its a Whipple so you have another company standing behind it. There are a dozen installers that use Whipple to boost Shelby's. From all the forums, I see way more 5.2 failures that are all stock vs the blown versions - the facts are - you want to go faster, you can but know that sometimes stuff blows up - trucks blow up, cars blow up, and that's life in the automotive business every day everywhere in the service lane. Things break, the last F1 car was pulled out from a Sandwich wrapper caught in the brake cooler - its a zillion dollar investment benched from a piece of sandwich paper. It's life -