Anyone have R/T cats with a tune and have had them implode? Mine imploded N/A with no tune. I talked to R/T and they told me that the metalic substrate cats require a tune to correct the lean misfire issue that implodes the cats. They said that they have not had complaints from people with FI only N/A because the people with FI have had a tune to correct the AF issues. I was told that ceramic cats don't have the implosion issue (they do have that option now) but they don't flow as well. Can anyone add anything to this?

 

im tuned right now with the RT High flow metallic cats. With the HKS exhaust, HFCs, and intake, I was 1 full pt leaner(if you think thats a lot, the crawford headers by themselves leaned me out by 1 pt as well, meaning never install all my mods I have in my sig at once, without a tune, cause you will be runing 2 pts to lean, which is really really bad)! I didnt drive it hard until I was tuned, but everyday since Ive been mashing on it, and I've had no problems, no leaks or anything. A/F ratios have been stable. Nothing has imploded, Ive put 2,000+ miles on them, which isnt that much I guess, but they've been a hard 2000 miles.

If you decide to get these HFCs, definitely get tuned first. If you got the HFCs by themselves, it probably wouldnt be that much of an issue. There the highest flowing CATS available, and as such they will lean your car out the most, compared to other HFCs, meaning a tune is more important.

The intake, HFCs, and HKS exhaust gave me 18hp, with the Plenum spacer I gained another 7hp. Headers gave me another 9hp and 20 low end torque and 14 at peak! This is all after tuning. Before tuning, I got almost nothing.

 

Thanks for the reply. thats good info. You have some nice numbers! Its good to hear that you've been able to push it after the tune with no issues and solid AF #'s. Mine imploded with just RT HFCs and no other mods. I want to start doing some work again and from what I've been reading, a tune is essential. Osiris looks like a good package that isn't too costly as well as some others (thats a whole other set of research)
I feel RT is getting a bad rap for something that seems to be an issue with our cars fuel management system. They use the same cores for other makes of cars without this issue. I noticed the Berk cats look like they have the identical metal substrate core, I wonder if this issue will start popping up with their product too. I can't imagine that there are that many companies making these spun metal substrate cores. They probably are all from the same manufacturer.

 

sounds like a bunch of bs to me.

 

I posted a bunch of BS?

 

What does that mean?

 

I've had RT cats (along with JWT popcharger, borla exhaust) for about 3 years now and haven't had a problem. I'm just now getting my car tuned

 

i've had the listed mods below including R/T HFC's with no problems. cats are about 3 years old, 2 years on my car. No problems. A tune would be sweet though. Warranty is almost up, it'll be coming soon, so we'll see.

 

what R/T is telling. sounds like they are trying bs their way out of not taking any responsibility.

 

It’s always a possibility. I do know they did have some conversation with Technosquare about this issue to try and figure out what was going on, and this is what came out of that. Still I would imagine that most of the HFC manufacturers purchase the metals substrate cores from the same producer.