Kerazy S-Pak

Hi everyone, I'm interested in buying a high flow cat for my ED (which already has extractors/2.5" exhaust) with my main concern being a chunkier/louder exhaust note. More power would be a nice bonus, but not absoloutely necessary. I'm not sure what to look for tho with regards to brands/dimensions of the cat itself and what they can do exactly for sound/power. Any other tips for improving the exhust note would be handy also :) Any info greatly appreciated. thnx.

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00 AU Falcon XR8

TIKFD6

Hi mate, i run an HSV 2.5" high flow cat, its very good.
Cost me $185, and doesnt make any differance to the sound.

old_mate

What are my chances of getting one of them up here to sydney for my car?

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EL Fairmont
XY Fairmont

...mmm clevo...

ford freak

i got told that a hiflo cat only gives ya like one percent extra power,is this true

d_slayer

I had to replace my redback cat (hi flow) with a new hi flow catco (or Superflow) I think they called it.. but in my option it was a step backwards I am getting a new redback one as soon as i can get some money togther for it

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95 EF Futura.. lowered,mags,2.5 inch sports system, extractors, 2.5 inch HighFlow CAT,stone reflectors,spoiler,dark tinted windows and one kick A$$ Sound system..

soon to have a shift kit and one day in the unforseen future i will drop in the manual gearbox

Freak

I got a Lukey Hi Flow fitted for $320. Better fuel economy, no power increase (very, very slight) and a slight note change. They are better than the standard cats. But not by much. Ofcourse, if you have an older car then it can do wonders, but not for the later models.

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87' XF FREAK!

EAtDUST

Get one that looks new and gut it. i had a 2.5' with extractors then my exhaust cracked so i got a new (hi flow) fitted and i actually lost power and sound (quite a bit) because my old cat had no guts in it. Yes i know it is illegal but if you're worried about it get a bypass pipe welded on with a exhaust cut-off valve. That way if you get it tested it is still enviro friendly.

Voxace

I just bought a 3" Magnaflow High Flow Cat for $105, hope it still flows alright. I'm hoping that it wont slow down exhaust flow from being too big, limited chance of that happening I guess...
I'll let you know how it goes...

TIKFD6

I will chase down the Manufacturer and part number for you if you like?
Very good cats.

ford freak

yeah ive got a redback aftermarket cat sitting in the shed,engine pipes are on it,its got less than 2000kms on it and im still deciding wot to do with it.prolly sell it.
is it true that the au cats flow like highflo ones?