Hi Flo Cat

[OoskylineoO]

hey guys, i ahve a question,

i am getting a 2.5'' catbak and a hi flo cat, would it be a major problem if i got a 3''cat?

does a 3''cat mean the whole thing is bigger than a 2.5''cat or does it jus mean the size of the piping to suit?

[Basti]

the whole thing will be bigger inc piping i think. you dont really need it on a 2.5 system but it does no harm

[OoskylineoO]

so if i buy a cat i best look 4 a 2.5'' 1? flanged or weld on? dosent matteR?

wat about metal core cats? are they any better?

Edited November 17, 2007 by OoskylineoO

[GTS4WD]

so if i buy a cat i best look 4 a 2.5'' 1? flanged or weld on? dosent matteR?

wat about metal core cats? are they any better?

Yes if you weld it it will be ok as long as the flanges match.

Metal cats.. unless the engine is working at very high RPM or your at least pushing 200kw.. dont bother.. you will see absolutely no gain..

[OoskylineoO]

o ok , cos the cat im looking at is a 2.5'' magnaflow hiflo cat, it kums UNflanged and jus has an inlet and outlet

[GTS4WD]

Yip.. dont bother.. on such low pwer applications it will not help

Theres the ghetto way and knock the contents out of the cat - this will lead to black buildup on the rear bar.. louder exhaust tone according to applications and mods.. and occasionally small flames out of the exhaust..

[OoskylineoO]

hahaha hmmMMM..maybe i just mite do that lol

so ur saying if i install a hiflo cat it will do nothin and jus giv out the same power as with the stock cat aye? lol

[OoskylineoO]

this cat any good?

http://cgi.ebay.com.au/hi-flow-catalytic-c...bayphotohosting

[GTS4WD]

Mate.. in all seriousness..

Spend the money on a set of headers.. you will acutally see gains with these opposed to a cat..

Page isnt responding.. but the money is worth spent in other places of the car.