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What size piping? #91184 Jan 26, 9:41am Jan 26, 9:41am
Joined: Nov 2003
Posts: 88
Mississippi
nemisiscelica OP
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2003 Toyota Celica GT
nemisiscelica OP
Member
2003 Toyota Celica GT

Joined: Nov 2003
Posts: 88
Mississippi
What size piping?
I am going to do custom piping from either the axle, or catalytic converter back. What do ya'll suggest i do and what size piping should i use.

Re: What size piping? [Re: nemisiscelica] #91185 Jan 26, 10:28am Jan 26, 10:28am
Joined: May 2002
Posts: 3,294
Riverside, CA
2001 Spectra Blue Mica Toyota Celica GTS
Steven
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2001 Toyota Celica GTS
Steven
2001 Spectra Blue Mica Toyota Celica GTS
ECelica Staff
2001 Toyota Celica GTS

Joined: May 2002
Posts: 3,294
Riverside, CA
stock piping is 2.25" or 2.5"

It's one of the two, either way you'll be good to go. I wouldn't go any larger than that unless you're getting forced induction because you want to keep the exhaust gases hot. I'm not an expert or anything but i know that that the hotter the exhaust gases, the faster it moves which is what you want in a custom exhaust.

Re: What size piping? [Re: nemisiscelica] #91186 Jan 26, 4:54pm Jan 26, 4:54pm
Joined: Sep 2003
Posts: 189
2002 Red Toyota Celica
RedDevil
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2002 Toyota Celica
RedDevil
2002 Red Toyota Celica
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2002 Toyota Celica

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Posts: 189
I have new piping right before the CAT and all the way to axel..
CAT has been replaced with high flow cat and resonator is gone...
But warning this setup will be loud...
Oh yea.. it's all 2.5"


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Re: What size piping? [Re: RedDevil] #91187 Jan 26, 4:57pm Jan 26, 4:57pm
Joined: Jun 2003
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MA
GraSSRooTs
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GraSSRooTs
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Yup, very loud. Illegal loud. If you aren't scared of the pigs then go for it.


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Re: What size piping? [Re: nemisiscelica] #91188 Jan 26, 10:11pm Jan 26, 10:11pm
Joined: Nov 2003
Posts: 88
Mississippi
nemisiscelica OP
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2003 Toyota Celica GT
nemisiscelica OP
Member
2003 Toyota Celica GT

Joined: Nov 2003
Posts: 88
Mississippi
Sooooooo if i have 2.5 inch and go to a 2.25 inch pipe, will it improve the flow of my exhaust? And how would this affect the sound?

Re: What size piping? [Re: nemisiscelica] #91189 Jan 26, 10:42pm Jan 26, 10:42pm
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California
Eyger
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2000 Toyota Celica
Eyger
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2000 Toyota Celica

Joined: Jan 2004
Posts: 1,168
California
2.5 That would be my reccomendation. The only reason being that it'll make whomever welding the pipes a whole lot happier because it would make the weld easier. And if you buy an aftermaket muffler, i'm almost 100% sure that they most commonly come in 2.5 Diameters!
Happy Exhaustion!


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