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hi flow cat? #388289 Jan 30, 7:08pm Jan 30, 7:08pm
Joined: Oct 2004
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North Carolina
2000 Midnight Blue Toyota Celica
nvyseal2332 OP
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nvyseal2332 OP
2000 Midnight Blue Toyota Celica
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North Carolina
hi flow cat?
any advantages with using a hi flow cat on our cars? would it help any or just change the sound?

Re: hi flow cat? [Re: nvyseal2332] #388290 Jan 30, 7:14pm Jan 30, 7:14pm
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Chaz
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won't do either from what I have heard. Our cats are pretty high flowing already.


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Re: hi flow cat? [Re: Chaz] #388291 Jan 30, 9:15pm Jan 30, 9:15pm
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XxMerlinxX
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Originally Posted by Chaz
won't do either from what I have heard. Our cats are pretty high flowing already.


Exactly, your aftermarket "hi-flow" cat might actually be more restrictive.


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Re: hi flow cat? [Re: Chaz] #388292 Jan 30, 9:16pm Jan 30, 9:16pm
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c4justin
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i was told the same thing that Chaz said! That the celica has a very high flow cat already..

Re: hi flow cat? [Re: c4justin] #388293 Jan 30, 10:30pm Jan 30, 10:30pm
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New Orleans, LA
Speed4TheNeed
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almost everything stock in the celica is made pretty good. for instance, a manual gts rates at 180 bhp, and dynos usually throw it around to the 160 whp mark...a loss of only 20 horsies in this case in considerred EXCELLENT.

there is always and definately room for improvement though. i was just making the point that the celica is put together very well from the get-go.

a highflow cat (such as magnaflow's) wouldn't hurt though...it's not more restrictive, but it's not much more free-flowing, either. it'll help, but only a little. this may or may not be worth the $$ to you.

Re: hi flow cat? [Re: Speed4TheNeed] #388294 Jan 31, 6:32pm Jan 31, 6:32pm
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Shiftyz1x
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^ nicely said thumbsup

Re: hi flow cat? [Re: Shiftyz1x] #388295 Jan 31, 6:41pm Jan 31, 6:41pm
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Polykarb
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i think "High Flow" for anything in the exhaust path is a waste of money if you put it on our cars. Really wouldn't make a noticable improvement.


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Re: hi flow cat? [Re: Polykarb] #388296 Jan 31, 6:49pm Jan 31, 6:49pm
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SLVCELI
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Would buying, say the maganflow cat that will fit our cars the best give out less emissions and also keep the performance the same (or better) or is it generally if the less you pollute, the more power you lose?


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Re: hi flow cat? [Re: Polykarb] #388297 Feb 1, 5:52am Feb 1, 5:52am
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New Orleans, LA
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Originally Posted by Polykarb
i think "High Flow" for anything in the exhaust path is a waste of money if you put it on our cars. Really wouldn't make a noticable improvement.


i don't understand what you are saying

the trial & dc sports header are 'high flow' and they give out usually 7-9 whp

almost all exhaust systems are 'high flow' and they give out around 3-5 whp


anything that is less restrictive = better, as a rule of thumb thumbsup

Re: hi flow cat? [Re: SLVCELI] #388298 Feb 1, 5:56am Feb 1, 5:56am
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New Orleans, LA
Speed4TheNeed
Caleb
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Originally Posted by SLVCELI
Would buying, say the maganflow cat that will fit our cars the best give out less emissions and also keep the performance the same (or better) or is it generally if the less you pollute, the more power you lose?


it would give out about the same emissions, and performance would be the same or better.

and yes..generally, the more you pollute the more power you have. that's just the nature of the beast. it's not saying that pollution = more power, it's that way because we try NOT to pollute. so to NOT pollute more, we put things (such as our catalytic converter) in our exhausts path that restrict the exhausts flow..which decreases power.

supposedly in the future, we will run off of hydrogen (at least thats what they are trying to do) so there will be no harmful emissions which therefore means we won't have a cat at all.

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