Ordered Some High Flow Cats
Thread Starter
Burning Brakes
Joined: Oct 2006
Posts: 800
Likes: 45
From: San Diego CA
Ordered Some High Flow Cats
I went with Magnaflow #59956 which was recommended from a member here in an old thread I found. Got them both for $140 shipped on a Cyber Monday sale. I guess Random Technologies had the best ones a while back, but I believe either they closed or Magnaflow bought them out. I read different stories on this. When I had my C5 at the tuner, he told me my cats were very restricted and I would be better off going catless or get high flow cats, so hf cats it is! Anyone run these or other high flow cats? How do you like them?
Administrator
Joined: Mar 2001
Posts: 368,053
Likes: 24,729
From: In a parallel universe. Currently own 2014 Stingray Coupe.
C7 of the Year - Modified Finalist 2021
MO Events Coordinator
St. Jude Co-Organizer
St. Jude Donor '03 thru '25
NCM Sinkhole Donor
CI 5, 8 & 11 Veteran
Sounds like you got a good deal. 
Thread Starter
Burning Brakes
Joined: Oct 2006
Posts: 800
Likes: 45
From: San Diego CA
Good to hear since I will be keeping them for a while. Although I went 2.5" on both ends since everything under the car is 2.5. I was debating on the size, but when I had my pup cats removed the stock main cats were 2.5 and my exhaust guy welded a pipe and flanges there. These will be welded in though.
