ERZ HFC Performance

hfrog355

After much deliberation and reading around these parts, I've settled on ERZ to provide high flow cats. Berk was the early leader for this modification as just about everyone seems to have them around here and only positive remarks seem to follow. Upon further digging, I have found the ERZ product to be every bit as highly regarded with only a slight issue brought up about some of the finishing early in their production. I've been led to believe that issue has been resolved. With all other things being equal, I can save a good bit of money buying the ERZ cats over the Berks and expect reasonably similar performance. There is just this one thing still bugging my OCD...

I've read several very well done threads on these cats by bluestyle55 and spearfish25 (thank you very much, guys) who gave the product very high marks but am still left wondering if anyone has come up with some numbers around performance gains for this product. The search feature doesn't seem to like short phrases (i.e. ERZ) and so searching for the item has been difficult. Has anyone been able to dyno this mod or make an educated guess at the gains for this piece? It's not a deal breaker, but I'm curious to know.

It seems to reason that gains are similar to what would be expected with the Stillen or Berk since the construction between them seems so consistent, so I would imagine something in the way of 12-15 whp. Even if the output is less than those manufacturers, the significant price break and great sound is more than enough to get me to pull the trigger on the product.

This is where I'm looking for comment: The only two things that would stop me from pulling the trigger on these would be:
1) if someone had a case to make about them losing power - unacceptable for me
2) if I could get a great deal on some used Berk or Stillen pieces. (Sad I missed out on DIGItonium's firesale)

Thanks!

P.S. Vendors, feel free to PM me with some pricing if you feel so inclined. Shipping to Dallas.

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2009 7AT Touring - Black on black
VentureShield; F1 Tint; Stealth Signals; LED backup + trunk lights; Stillen HFC; MR Works Headlights; VHT tails; GTR Start Button