Universal Hi Flow Cats - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Unfkwthabl · 03-09-2013, 11:40 PM

Has anyone installed universal hi flow cats other then solo? Were there any noticeable gains? Did you throw any CELs? Any info would be greatly appreciated.

Decepticon21 · 03-10-2013, 12:23 PM

I too am interested in this, I dont believe i've ran across any hi flo cats online that are universal.

Unfkwthabl · 03-10-2013, 12:46 PM

I have seen a couple companies that make universal hfc like magnaflow i just dont know how good they are..They are a third the price of the solos starting at about 100 a piece.. I guess i might have to be the guinea pig on this one..

Decepticon21 · 03-10-2013, 09:27 PM

Only experience I have with after market hi flo cats was with Dynomax. I had a 5.2 dakota with a super 44 muffler. Sounded good but i wanted it opened up more. Summit racing had a dynomax hi flow uni. cat. it was 50 bucks. Completely opened the exhaust up like I wanted. Curious if I could make that cat fit on a 5th gen camaro then that'd be the ticket.

I dont think there would be HUGE gains with hi flow cats maybe 2hp to 3tq or something. But thats just a guess.

KMPrenger · 03-10-2013, 11:25 PM

Quote:

Originally Posted by Decepticon21

Only experience I have with after market hi flo cats was with Dynomax. I had a 5.2 dakota with a super 44 muffler. Sounded good but i wanted it opened up more. Summit racing had a dynomax hi flow uni. cat. it was 50 bucks. Completely opened the exhaust up like I wanted. Curious if I could make that cat fit on a 5th gen camaro then that'd be the ticket.

I dont think there would be HUGE gains with hi flow cats maybe 2hp to 3tq or something. But thats just a guess.

FYI,

SOLO cats showed a 15rwhp difference on the dyno compared to before. Its the HFCs that give most of the gains in a LT header setup....not the primaries themselves. Of course not all cats are built the same, so can't say what other HFCs would do.

Decepticon21 · 03-10-2013, 11:50 PM

For the Price of SOLO's cats id sure hope the heck your getting atleast 15rwhp outa those. Thats very good though. Did not know that.

KMPrenger · 03-10-2013, 11:52 PM

Quote:

Originally Posted by Decepticon21

For the Price of SOLO's cats id sure hope the heck your getting atleast 15rwhp outa those. Thats very good though. Did not know that.

Yep...they are pretty $$$$

DJ ATOMIX · 03-11-2013, 10:14 AM

I read about some tests that were done last summer of someone who compared partial cat del to high flow cat total replacement. The difference was within only 1-2hp at most consistently.

Therefore, I only went for a partial CAT delete removing only the smaller cats and leaving the larger ones intact.

1. The difference in sound was incredible!

2, No CEL from doing this mod what so ever.

3. I picked up a couple HP figures as well.

4. Most importantly, it costed me like only $125 total at a local shop to get this done.

Great mod all around.

kuzman89 · 03-11-2013, 07:57 PM

No idea how restrictive the stock Camaro's are, but 15rwhp from cat's alone sounds iffy?

Can't believe no one has mentioned this yet, if you are buying cats, make sure they are Metallic!! Ceramic are crap, and tend to shatter. A 200cpsi Metallic cat will flow more than a 200cpsi ceramic cat.

Decepticon21 · 03-11-2013, 08:07 PM

From what ive read these exhaust arnt very restrictive. Personally im very imressed other then they lack just a bit of bit from factory still. regardless cats will open it up now where or not whos is better idk but 15wrhp is big... an im kind of questing this.

KMPrenger · 03-11-2013, 10:59 PM

Quote:

Originally Posted by kuzman89

No idea how restrictive the stock Camaro's are, but 15rwhp from cat's alone sounds iffy?

Can't believe no one has mentioned this yet, if you are buying cats, make sure they are Metallic!! Ceramic are crap, and tend to shatter. A 200cpsi Metallic cat will flow more than a 200cpsi ceramic cat.

I don't see why everyone is so shocked that going with a good HFC like SOLO can yeild a decent power gain, when LT headers are showing up to 20rwhp at times (usually more like 15 - 18 range).

Its the cats that are giving a big part of those gains, not just the tubes.

kuzman89 · 03-12-2013, 12:32 AM

Just going off what I know, seems a bit high but I've never seen the stock exhaust setup so just my opinion. Aussie dyno's tend to read lower than others as well.

03-09-2013, 11:40 PM	#1
Unfkwthabl Drives: 2011 V6 Synergy Green Camaro Join Date: Apr 2011 Location: Wood Dale, IL Posts: 248	Universal Hi Flow Cats Has anyone installed universal hi flow cats other then solo? Were there any noticeable gains? Did you throw any CELs? Any info would be greatly appreciated.

03-11-2013, 10:14 AM	#8
DJ ATOMIX << CRAZY BEE >> Drives: 400HP 2LT/RS Join Date: Apr 2009 Location: Alberta Posts: 1,156	I read about some tests that were done last summer of someone who compared partial cat del to high flow cat total replacement. The difference was within only 1-2hp at most consistently. Therefore, I only went for a partial CAT delete removing only the smaller cats and leaving the larger ones intact. 1. The difference in sound was incredible! 2, No CEL from doing this mod what so ever. 3. I picked up a couple HP figures as well. 4. Most importantly, it costed me like only $125 total at a local shop to get this done. Great mod all around. __________________ CRAZY BEE - IOM 2LT/RS (more) Cosmetic Mods - 24 \| Performance Mods - 14 ROTO-FAB CAI - DT HEADERS - CUSTOM 3-INCH PIPE EXHAUST - RES DEL - R-CATS DEL - MAGNAFLOW RES X-PIPE - 91 OCTANE TUNE - FULL ADM KIT - PORTED IM - PORTED TB - PORTED CH - BLACK 3/8 ISOLATOR - TRIFECTA TUNED

03-10-2013, 12:23 PM	#2
Decepticon21 Drives: 2010 Camaro v6 Join Date: Aug 2012 Location: Barberton, Ohio Posts: 283	I too am interested in this, I dont believe i've ran across any hi flo cats online that are universal.

03-10-2013, 12:46 PM	#3
Unfkwthabl Drives: 2011 V6 Synergy Green Camaro Join Date: Apr 2011 Location: Wood Dale, IL Posts: 248	I have seen a couple companies that make universal hfc like magnaflow i just dont know how good they are..They are a third the price of the solos starting at about 100 a piece.. I guess i might have to be the guinea pig on this one..

03-10-2013, 09:27 PM	#4
Decepticon21 Drives: 2010 Camaro v6 Join Date: Aug 2012 Location: Barberton, Ohio Posts: 283	Only experience I have with after market hi flo cats was with Dynomax. I had a 5.2 dakota with a super 44 muffler. Sounded good but i wanted it opened up more. Summit racing had a dynomax hi flow uni. cat. it was 50 bucks. Completely opened the exhaust up like I wanted. Curious if I could make that cat fit on a 5th gen camaro then that'd be the ticket. I dont think there would be HUGE gains with hi flow cats maybe 2hp to 3tq or something. But thats just a guess.

03-10-2013, 11:50 PM	#6
Decepticon21 Drives: 2010 Camaro v6 Join Date: Aug 2012 Location: Barberton, Ohio Posts: 283	For the Price of SOLO's cats id sure hope the heck your getting atleast 15rwhp outa those. Thats very good though. Did not know that.

03-11-2013, 07:57 PM	#9
kuzman89 Drives: Ly7 Join Date: Dec 2011 Location: bezza Posts: 253	No idea how restrictive the stock Camaro's are, but 15rwhp from cat's alone sounds iffy? Can't believe no one has mentioned this yet, if you are buying cats, make sure they are Metallic!! Ceramic are crap, and tend to shatter. A 200cpsi Metallic cat will flow more than a 200cpsi ceramic cat.

03-11-2013, 08:07 PM	#10
Decepticon21 Drives: 2010 Camaro v6 Join Date: Aug 2012 Location: Barberton, Ohio Posts: 283	From what ive read these exhaust arnt very restrictive. Personally im very imressed other then they lack just a bit of bit from factory still. regardless cats will open it up now where or not whos is better idk but 15wrhp is big... an im kind of questing this.

03-12-2013, 12:32 AM	#12
kuzman89 Drives: Ly7 Join Date: Dec 2011 Location: bezza Posts: 253	Just going off what I know, seems a bit high but I've never seen the stock exhaust setup so just my opinion. Aussie dyno's tend to read lower than others as well.