I am putting in a dyno max 2.5 inch exaust and was wondering if i should get a high flow cat or a stock one either way i need a new one. I have herd someone say that they put one a high flow and they lost a lot of power has this happened to anyone else? Help Please!!!!!!!

 

Not true, I run a high flow Gibson cat 2 1/2" inlet and outlet and deffinately gained power. You can't buy Gibsons anymore so my next on will be a Random Technology stainless-steel cat 2 1/2". Randoms are better than Gibson anyway in durability.

 

FALSE, THAT IS VERY TRUE, VERY TRUE.
I put on a random high flow when I installed my cat back and I ost ALOT of TRQ down low. Granted i gained some in 5th gear, but who is street racing in 5th gear?

 

It definately added power over the stock cat and I'll put my money where my mouth is to prove it anytime.-Oh I forgot-Isn't your motor blown up or something, last I heard you weren't going to be around anymore because you were going to now install a bigblock in place of your possibly malfunctioning V6- I really think you had more problems than too much flow out of a cat.

 

You can get direct bolt-in cats, too... if they don't list for the 2.8, get a v8 f-body cat with a 2.5" inlet and 2.5" flanged ball outlet. That means it'll fit the 2.8/3.1 exhaust system. If you do a search on this board, I've mentioned the Catco part # a million times, I think it was $95. I paid $70 for my "Products for Power" bolt-in high-flow cat, back in '96. I lost no power, but I had a gutted cat on the car. Didn't know it was gutted until I removed it! And I was originally going to get a stock cat- until I found out how expensive they were. So I figured, well, if they're that much $$, I'll call summit and see what a high-flow one costs. Turned out it was CHEAPER than the stocker that Pep Boys tried to sell me!

 

I've been thinking about putting on a high flow cat as well when I install the C_H_C headers on my car. But lately I have read much controversy that with the open cat I will lose TQ big time....

 

No dumb ***, my V6 is just fine.

And if I GAINED power, then why can I no longer spin 3rd gear? when before I could? Even with cheaper tires on NOW.????

And I never said my V6 was malfunctioning. I said I was tired of try to "hop" it up. I want a real engine, and frankly this V6 ain't gonna get it.

 

Something else probably broke on your car.

And WW/3.1RS, so, if the cat really kills your engine (and I doubt it will), then put it on eBay for $10 off what you paid, and put your old one back on. I think it's all nonsense, though. Hell, even a NEW stock GM cat will be "higher flow" than the original ones that came on 82-92 f-bodies!!

 

You got a big fu{king mouth you little sh*t . G()d fu{king help you if you talked to me like that in person I'd throw your little *** in a dumpster. I've come to the conclusion that your car is a piece of sh*t and you are trailertrash with no money and jealous attitude towards everything I say. It must bug the crap out of you that your stuck with a terrible little V6- personally I choose to buy mine and wanted a V6 for handling ( I own three other V8 cars) and am sick of hearing you bitch about whats wrong this week or hey guys I'm going to a V8 that week. A cat only slows exhaust gases, heats them up again and always them to continue. If the cat is not there then flow will be fine because it goes out unresticted as it cools. A high flow cat is better, especially a stainless steel one because it traps heat inside better but also allows less resticted flow. You've just been educated, now grow up dumbass.