[86_ZN6]

Originally Posted by AllDayJonRay

Just so everyone understands this, that design isn't purpose built.

The goal was: How can we make the simplest design for a muffler delete, that takes the least amount of fabrication work to mass produce, and yields good profit margins?

The AB and AB-M are just the result of that. It was not tested or tuned to perform the way it does, with uneven flow from L/R sides. It's simply fluid dynamics at work.

Very little thought went into R&D for this product. It was designed for someone who just wants to make more noise with their car. (Not saying there is anything wrong with that, I was actually debating between similar options before deciding on a cat-back).

With that in mind, I would recommend using a similar philosophy when deciding which to get: Which one is most cost effective, creates a lot of noise, and is high quality?

The answer is likely the Berk piece.

no R&D?? no testng and no tune?? hahahaha! it took us 4 months to release the product!

o well i wont get into this any further just for the OP's sake