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> Official "custom" exhaust thread, for all engines
post Apr 1, 2011 - 8:07 PM
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KAOS



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The only one I've seen on 6GC. tongue.gif

Fwiw; I went to a single exhaust after my headers were installed.

Here's a link to the last few pics I had of the dual exhaust: New Exhaust Install

This post has been edited by KAOS: Apr 1, 2011 - 8:10 PM


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post Apr 1, 2011 - 8:17 PM
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Spider77



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totally gunna miss the duals
post Apr 2, 2011 - 6:07 PM
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Aussie_Celica

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thanks for that givin me some ideas on how i wanna go about it
post May 9, 2011 - 2:29 PM
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senick

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Alright, kind of resurrecting this, but I have a few questions that I haven't seen answers to after going through this thread.
First off, how much HP does one realistically stand to gain from installing a catback setup? Does that change if the cat is included in the upgrade? Or is this more a simple issue of finding the right sound?
I have a 7a, and I'm thinking about doing a straight-pipe 2.25" setup from the cat back without a resonator. With a good muffler, will I notice any performance increase?
post May 9, 2011 - 9:49 PM
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Nartanian



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It's a very small increase at that. I went from stock to after market header and down pipe, deleted cat and 2.25 piping. I'd like to say at most you will gain 7whp maybe more with a tune. The stock 7a produces so little power that it doesn't make a drastic difference, especially if you are only doing a cat back.


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post May 9, 2011 - 11:20 PM
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brenton1919

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i did a custom 3" exhaust for my st215 with a cxracing 3" flex pipe a cxracing 3" cat 170mm hks with a 5" tip sounds pretty gud
post May 10, 2011 - 9:16 AM
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senick

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Alright, so basically on a 7a it would be pointless to do a full exhaust from the header back? So just a catback would give the same sound effects? Would including a new cat make a difference, or could I not get much better than stock?
post May 10, 2011 - 1:55 PM
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Nartanian



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From a performance stand point I wouldn't even waste time doing exhaust work on a stock 7a. I'd just save to either swap or boost it THEN do exhaust. If you just want it to sound a bit more aggressive though perhaps someone can chime in since I've never heard how a catback setup sounds.


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"God created turbo lag to give V8's a chance"
post May 10, 2011 - 5:39 PM
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d3ath2009

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for 7a, easiest and cheapest way to gain power by exhaust is to put on an ebay header, cat delete or gut it and put it back up, and an after market muffler.... not a lot of gain, but a noticeable difference... intake helps a little too (experience talking, ive got a 7a with this done)
post May 10, 2011 - 6:47 PM
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senick

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Hmm, well that's some good info. I guess I'll just not worry about exhaust so long as I'm packing a 7a. Eventually I'd love to throw a 3s in, but until then I won't ride around all bark and no bite; that's what makes us different from Honda guys after all.
post May 13, 2011 - 2:41 PM
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CelicaST96

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I'm preparing to get a full exhaust, anyone know of a good system or set-up that produces well and sounds deep? I wanna keep a $500-$600 price range. Any suggestions would be much appreciated guys! Thanks.
post May 13, 2011 - 5:33 PM
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Smaay

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buy the materials and have a "good" exhaust shop make it. use mandrel bends not crush bends


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2001 Celica GT-S Turbo
1997 Supra TT 6speed
1997 Celica 3MZ/1MZ swap
1990 Celica All-Trac
post May 13, 2011 - 7:39 PM
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senick

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Check about 11 topics down. There's a dedicated topic for this with all the info you could want. Assuming you have a NA ST, you'll probably want 2.25 inch piping from the cat back with a resonator. As far as mufflers, it seems that's just a matter of preference. I happen to think a gutted cat sounds cool and race-like, but some people hate the sound.
post May 14, 2011 - 1:36 AM
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trdproven



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for a custom exhaust make sure you use good resonators, aftermarket brands that offer it are vibrant and magnaflow, cus greddy for example doesn't sell it separately. if you want a quieter sound you get the oval type resonator and a longer length for example. for your muffler canister, use a good one from tanabe, apexi ws2, magnaflow, etc. they come as universal mufflers so that you can pipe it yourself or if you can get a branded one off another car like a greddy, then cut it off that and custom pipe it after with proper hangars. i would also recommend a custom downpipe since our stock ones are pea shooters, reason i say that is you are defeating the purpose of putting a 2.25 or 2.5 exhaust pipe when the stock downpipe is like 1.75. I felt a difference in sound and feel when i changed this.

and use a good pro bend instead of those lousy bends mentioned by Smaay. wish i could sell you my 5zigen catback, but it would cost a pretty penny to ship it back to the mainland.

This post has been edited by trdproven: May 14, 2011 - 1:38 AM


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94 Celica GT
|Toyota OEM Japan|Toyota Racing Development|Tom's|Competition Clutch|5Zigen|Apexi|
|Laille/Beatrush|Magnecor|Denso|Royal Purple|Optima|PIAA|PW JDM|Megan Racing|Nitto|
|Work|Greddy|Samco|Project Mu|H&R|Gates|Moog|Rota|Yokohama|Epman|1320|Upgr8
04 Celica GT
|Toyota OEM Japan|Toyota Racing Development|Tein|BC Racing|Greddy|

89 Supra (Sold)
90 Supra (Sold)
post May 15, 2011 - 9:46 PM
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CelicaST96

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QUOTE (trdproven @ May 14, 2011 - 2:36 AM) *
for a custom exhaust make sure you use good resonators, aftermarket brands that offer it are vibrant and magnaflow, cus greddy for example doesn't sell it separately. if you want a quieter sound you get the oval type resonator and a longer length for example. for your muffler canister, use a good one from tanabe, apexi ws2, magnaflow, etc. they come as universal mufflers so that you can pipe it yourself or if you can get a branded one off another car like a greddy, then cut it off that and custom pipe it after with proper hangars. i would also recommend a custom downpipe since our stock ones are pea shooters, reason i say that is you are defeating the purpose of putting a 2.25 or 2.5 exhaust pipe when the stock downpipe is like 1.75. I felt a difference in sound and feel when i changed this.

and use a good pro bend instead of those lousy bends mentioned by Smaay. wish i could sell you my 5zigen catback, but it would cost a pretty penny to ship it back to the mainland.


I'm sure you have a pretty sick set-up but yea my price range has to stay where it is. But I'm no genius about knowing what exhaust set-ups are good and what are bad. I don't want that ricer sound in the high rpm's so what muffler do you reccommend aftermarket wise? And also I need a new exhaust manifold, so I looked into a header and only found that ebay header, which is short a few inches or so hooking up to the cat pipe? What would be your ideal set-up?
post May 15, 2011 - 10:53 PM
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trdproven



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I see, its a ST didn't catch that, i recall seeing pure bolt on headers before, you can't find anymore?

My ideal setup would be an ultraquiet resonator from vibrant, and for the muffler, a tanabe universal, apexi ws2 universal, or a cut off a greddy one thats not being used but then again if you could that means the greddy resonator would be there too.

If you plan to get headers, sound will change, a bit louder, sometimes raspier, cus you lose the 1st cat at the exhaust manifold when you replace it. and if yours is not a cali version celi, which has 2 cats, then that would be the only cat you have thus you have no more cats making it straight piped for the most part. Ill tell you that with a cat it sounds better but if you want better flow, remove it, kinda changing the sound a bit, but if your only for sound, the setup mentioned above will work well. it'll be deep and subtle. generic mufflers and resonators have high pitch raspiness

This post has been edited by trdproven: May 15, 2011 - 10:54 PM


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94 Celica GT
|Toyota OEM Japan|Toyota Racing Development|Tom's|Competition Clutch|5Zigen|Apexi|
|Laille/Beatrush|Magnecor|Denso|Royal Purple|Optima|PIAA|PW JDM|Megan Racing|Nitto|
|Work|Greddy|Samco|Project Mu|H&R|Gates|Moog|Rota|Yokohama|Epman|1320|Upgr8
04 Celica GT
|Toyota OEM Japan|Toyota Racing Development|Tein|BC Racing|Greddy|

89 Supra (Sold)
90 Supra (Sold)
post May 16, 2011 - 7:04 AM
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CelicaST96

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QUOTE (trdproven @ May 15, 2011 - 11:53 PM) *
I see, its a ST didn't catch that, i recall seeing pure bolt on headers before, you can't find anymore?

My ideal setup would be an ultraquiet resonator from vibrant, and for the muffler, a tanabe universal, apexi ws2 universal, or a cut off a greddy one thats not being used but then again if you could that means the greddy resonator would be there too.

If you plan to get headers, sound will change, a bit louder, sometimes raspier, cus you lose the 1st cat at the exhaust manifold when you replace it. and if yours is not a cali version celi, which has 2 cats, then that would be the only cat you have thus you have no more cats making it straight piped for the most part. Ill tell you that with a cat it sounds better but if you want better flow, remove it, kinda changing the sound a bit, but if your only for sound, the setup mentioned above will work well. it'll be deep and subtle. generic mufflers and resonators have high pitch raspiness


First off, what do you by cutting off a greddy muffler? And I have the base 7A-FE engine in mine and so a header will make it sound louder? Is it a loud annoying sound that will take the exhaust sound away? Mainly I want a rich clean and deep sound coming off my car, I know our cars aren't the fastest but I wouldn't mind gaining a new increases from the exhaust as well. So do you suggest de-cating it or keeping the cat on? Get a new one? And yea about the header... do you know if there are more blot-on's anywhere if I decide to go that route? ALSO I def. want my muffler being angled out to the right a bit, I don't know if there is a term for this kind of muffler. I think you know what I'm talking about.

This post has been edited by CelicaST96: May 16, 2011 - 7:06 AM
post May 16, 2011 - 7:22 AM
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CoreyST

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No no the header make the exhaust louder. And he is talking about cutting a Greddy exhaust off of another exhaust setup. Look for the corolla header for the 7AFE it has to have a section welded on to attach to the stock exhaust but if your going with a full custom exhaust it won't matter anyway.

If it were me since your taking the cat away when you get the headers then I would add one later in the piping. Atleast that is what I plan todo. But it is your car do what you want.
post May 17, 2011 - 8:02 AM
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CelicaST96

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QUOTE (CoreyST @ May 16, 2011 - 7:22 AM) *
No no the header make the exhaust louder. And he is talking about cutting a Greddy exhaust off of another exhaust setup. Look for the corolla header for the 7AFE it has to have a section welded on to attach to the stock exhaust but if your going with a full custom exhaust it won't matter anyway.

If it were me since your taking the cat away when you get the headers then I would add one later in the piping. Atleast that is what I plan todo. But it is your car do what you want.



Add one what? A Cat or header? And is the Corolla Header sufficient and worth the money? Will having a header make more of a "riced out" sound or will the exhaust just be louder, not annoying?
post May 17, 2011 - 9:34 AM
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trdproven



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i have heard even material of the header makes a difference, cheap stainless steel won't sound as good as DC headers for example. I think he meant to add a cat later, although the cats main purpose is for emissions, it does assist with the overall sound of the exhaust.


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94 Celica GT
|Toyota OEM Japan|Toyota Racing Development|Tom's|Competition Clutch|5Zigen|Apexi|
|Laille/Beatrush|Magnecor|Denso|Royal Purple|Optima|PIAA|PW JDM|Megan Racing|Nitto|
|Work|Greddy|Samco|Project Mu|H&R|Gates|Moog|Rota|Yokohama|Epman|1320|Upgr8
04 Celica GT
|Toyota OEM Japan|Toyota Racing Development|Tein|BC Racing|Greddy|

89 Supra (Sold)
90 Supra (Sold)

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