A while back I purchased Magnaflow high perormance cats for my 06 GT. I went to the exhauast shop to have them put it on and they said the stock ones are better and if I had them install the magnaflows I would lose power and sound. I asked why and his explanation was that the stock cats were larger letting more through than the skinnier model magnaflows...I always thought it was the opposite, skinnier cat being more performance oriented.
Should I get a second opinion? Hearing that high performance cats from a reputable company are worse than factory cats is a hard for me to believe.
The guys who told me this have been doing this a while, and did a great job with my exhaust set up and I have since brought all my other friends with mustangs their for theirs as well.
Thanks.
__________________
-A7X- ~Stang Syndicate Boston~*2006 Torch Red GT*10/10/07 Performance:Borla FRPP Stingers w/ True Dual Midpipes, Magnaflow High Flow Cats, JLT CAI, Bama 93 Race Tune, Ford Racing 4.10 Gears, Nitto 555 Extremes. Visual: Black AVS Tail Light Trim, Honeycomb Tail Light Vinyl, Black Racing stripes, 35% Window Tint, Trunk Blackout Panel, Billet Antenna Delete, Mirror Covers, 17" Konig "Further" Rims, Quarter Window Louvers, 20% Tinted Head Light/Turn Signal, Boss C-Stripes, CS/GT C-Scoops.
A while back I purchased Magnaflow high perormance cats for my 06 GT. I went to the exhauast shop to have them put it on and they said the stock ones are better and if I had them install the magnaflows I would lose power and sound. I asked why and his explanation was that the stock cats were larger letting more through than the skinnier model magnaflows...I always thought it was the opposite, skinnier cat being more performance oriented.
Should I get a second opinion? Hearing that high performance cats from a reputable company are worse than factory cats is a hard for me to believe.
The guys who told me this have been doing this a while, and did a great job with my exhaust set up and I have since brought all my other friends with mustangs their for theirs as well.
Thanks.
Hmmm, I have Bassani w/ hi-flo cats. I can't find any problems. Interesting though.
The stock cats are very hard to beat, but...if you go to a blower, you will need a "metal" cat. The stock ones will eventually give up over time with constant pounding from the supercharger.
I know someone personally that ran 600+ hp for 2 years on the stock cats with only Corsa axle back. His LH cat finally had a Chernobyl.
__________________
2006 Legend Lime GT: Samco, Metco, LPW, Brembo 6 pot brakes with floating rotors, Magnacharger with 8-Rib, LubeLocker, Royal Purple, FR500S front end, APR Performance Carbon Fiber Rear Wing, Roll bar, 10 qt upgraded oil system...Thank you Capaldi Racing for all your help! 2007 Mustang GT/CS : Wife's Car, Magnacharged too. 1966 Mustang GT-K Code Coupe: Restored
Metallic substrate race cats are best but ceramic h/f cats are fine.
You're saying that because he's given no indication he's going F/I, right Mark ? Otherwise he'd be better off w/ metallic substrate cats since at some point he may blow a ceramic cat w/ a supercharger on the exhaust system and thereby be likely to blow the engine like Justin Bercham did, yes ?
You're saying that because he's given no indication he's going F/I, right Mark ? Otherwise he'd be better off w/ metallic substrate cats since at some point he may blow a ceramic cat w/ a supercharger on the exhaust system and thereby be likely to blow the engine like Justin Bercham did, yes ?
High Performance Cat Confusion... 
