VIPclk320

Hey guys hope everyone is doing well. I'm almost done with my 55 conversion just working on the wiring harness. I want to run high flow secondary cats, I'm not planning on changing the primary 55 cats or go with long tube headers. For time being I'm going to stick with the stock 55 exhaust manifolds and maybe down te line just get some shorty headers. But I will be keeping my stock 55 primary cats. Any suggestions for a set of good high flow secondary cats that aren't too pricy? Thanks

dlbehrns

I would ask MarcusF. I had bookmarked the company that he suggested but my hard drive crashed. they are a metal substrate. backing upmy hd would have been the intelligent thing to do.

VIPclk320

i found a couple here but not of them say how many cells they just say high flow. also i'm not sure what size inlet outlet i should go with for my 55. Gizzo feel free to chime in cuz i know you did the high flow cats on your 55.

http://www.ebay.com/itm/150861262214...84.m1423.l2649

http://www.ebay.com/itm/160889930884...84.m1423.l2649

http://www.ebay.com/itm/110847989857...84.m1423.l2649

CLK320skr

This one was recommended by someone on here, can't remember by who, but I've had it saved in my eBay account for months now:

http://www.ebay.com/itm/310311079252...84.m1423.l2649

I wonder why it says not for sale in California though if it meets emissions standards.