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What does the mid & S-pipe really do???

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Old Aug 17, 2007 | 01:10 AM
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Default What does the mid & S-pipe really do???

I have stock headers but i have a TDR axleback exhaust and i was wondering what an aftermarket mid- pipe and s-pipe would do??? does it add HP or sound at all? is it worth the investment?
Old Aug 17, 2007 | 02:03 AM
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i got injen intake megan 2.25 downpipe, midpipe and trd exhaust. i like the sound, it seems to breath nicer at higher rpm, i got no dyno for this but i can say not one civic has got me if it counts. we can race to see if it makes a differance in performance, im in sd north county
Old Aug 17, 2007 | 04:56 AM
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Getting a larger diameter s-pipe and mid-pipe opens up the airways so your car can breath a little better. Your axel-back is only opening up the rear section of the exaust, by getting headers, s-pipe, mid-pipe your opening up the rest. So yes I do believe it is worth it getting the rest of the exhaust to do the job properly.
Old Aug 17, 2007 | 01:47 PM
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The midpipe & s-pipe are not worth replacing unless you are going forced induction.

The most restrictive parts of the stock tC exhaust are the exhaust manifold and muffler. As you have already replaced the muffler with your TRD you should consider replacing the exhaust manifold with a header if you are looking for more peak power. Dynos show a gain of at least 7whp depending on the brand of header.

After header and axleback you have maxed out your HP gains on a N/A tC. You will gain very little by replacing the midpipe or s-pipe. The s-pipe, which usually runs $150-200, might gain 1-2whp which is equivalent to a dyno error and is a very poor bang-for-the-buck.
Old Aug 17, 2007 | 07:08 PM
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the whole setup works very nice. the gains are real noticeable. IMO get rid of the trd if you change the rest of the pipes. i had my trd on for a while with the setup you want to do and it didnt sound very good but i changed my axleback and now it sounds better and was def. the finishing touch on the exhuast
Old Aug 18, 2007 | 04:28 PM
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Originally Posted by Mid_Life_tC-risis
The midpipe & s-pipe are not worth replacing unless you are going forced induction.

The most restrictive parts of the stock tC exhaust are the exhaust manifold and muffler. As you have already replaced the muffler with your TRD you should consider replacing the exhaust manifold with a header if you are looking for more peak power. Dynos show a gain of at least 7whp depending on the brand of header.

After header and axleback you have maxed out your HP gains on a N/A tC. You will gain very little by replacing the midpipe or s-pipe. The s-pipe, which usually runs $150-200, might gain 1-2whp which is equivalent to a dyno error and is a very poor bang-for-the-buck.
have you ever seen the down and midpipe on the tc, it's like a coke bottle. what better way to determin than just racing both cars. even just removing the cat adds gain.
Old Aug 18, 2007 | 05:01 PM
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Haha another thread about this... Use SEARCH!
Old Aug 18, 2007 | 05:18 PM
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Yes, this has been discussed before. But you're right, they do look restrictive, and to a certain extent they are. But you have to remember we're only talking about a 160bhp Camry 4-banger. At that little power and exhaust cfm flow, the midpipe and s-pipe are not creating that much backpressure.

I have read posts where replacing the midpipe on n/a tC made no power difference, and it shouldn't. The midpipe is just under 2.5" (60mm) which is wider than it needs to be, so the cat is much less restrictive than if Toyo had used 2.25"/55mm (which is actually the ideal exhaust pipe size for this motor). The resonator takes nothing from power.

The s-pipe has several funky bends, and it actually necks down to 2" i.d. just before the midpipe, but it's still just an empty pipe. Replacing it and/or the midpipe may make the car sound louder but won't add any significant HP.

If you bolt-on a turbo it makes sense to replace the entire exhaust to at least 2.5". But for n/a, after putting on header + axleback, your power $$ are better spent on intake, fuel management & tuning.
Old Aug 19, 2007 | 06:35 PM
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the midpipe also goes down in size after the cat. i like the sound and dont plan on spending over $6k for turbo until i pay off the banks car first. to each thier own
Old Aug 20, 2007 | 03:35 AM
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WORD! I would love to slap on a turbo but the bank loves their money...so thats out of the picture...for now! you say you have the mid and s pipe on and that it sounds good...Does it sound "raspy"? Im not too sure i really want it if it makes it sound all rice-rockety...???? I like the sound of the TRD now ...I kinda want the same sort of sound just louder.. even if it doesnt add HP.
Old Aug 20, 2007 | 04:54 AM
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you get get the megan mid and spipe for the TRD and theres not gonna be rasp. there was a video clip of that and it sounded good. just dont add the header
Old Aug 21, 2007 | 02:05 AM
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i can let you here mine im in norh county s.d, if you want to meet up before you buy. i've got injen cai, megan down and midpipes with trd exhaust.
Old Aug 21, 2007 | 02:44 AM
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yeah seriously folks use the search. Mid life is right, without forced induction you're waisting your time and money. Save those pennies and get yourself one of these!
http://www.turbo-kits.com/tC_turbo_kits.html
Old Aug 22, 2007 | 03:43 AM
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im in north county too...VC, Esco area... im super busy, but i would like to hear it!
Old Aug 22, 2007 | 09:34 PM
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Originally Posted by Bozuzu
yeah seriously folks use the search. Mid life is right, without forced induction you're waisting your time and money. Save those pennies and get yourself one of these!
http://www.turbo-kits.com/tC_turbo_kits.html
j

got one for sale!
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