13chevy

iTrader: (6)

Looking for opinions and experience. I’m looking to cut back on the exhaust fumes on my daily turbo Truck. Are the kooks greencats just an overpriced part. Better options? I would mount it after my exhaust cut out before my muffler. Is there a minimum distance down the line it needs to be mounted to heat up properly? Thanks everyone.

wretched73

iTrader: (1)

I went with Thunderbolt metallic cats. They're all over ebay. They have great reviews from multiple auto forums and metallic cats flow better than ceramic

madmann26

iTrader: (7)

There’s a YouTube video where a guy was testing them and they melted on the dyno, on the first run.

He didn’t get much support from Kooks on the issue.

Thats enough for me to stay away.

13chevy

iTrader: (6)

I will look for it. Thanks.

2002_Z28_Six_Speed

iTrader: (20)

I have them on my Chevy SS. I have a MIL that I haven't pulled yet but I have a bad feeling about it.

smokinlmm

I'm running the standard catted y pipe and it's been fine so far with 35k of DD on it at 14 psi. I don't think the green cats like forced induction.

13chevy

iTrader: (6)

Next question. What is the maximum distance away from the turbo I can install a cat?

68Formula

Usually have to reach at least 600F for them to work. So maybe get under there with an infrared thermometer once it warms up.

2002_Z28_Six_Speed

iTrader: (20)

I pulled the code on my SS and it says low cat efficiency bank 1. brand new cats too....

13chevy

iTrader: (6)

I’m going to pull the trigger on the standard cat. I only run about 10-12 psi of boost. If it cuts back on the fumes. It will be a win.