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Enthusiast Joined Mar 4, '09 From Florida Tampa Currently Offline Reputation: 1 (100%) ![]() |
I'm about to have this done to my 94 ST! I ordered headers, a cherry bomb (glasspack style) resonator, and a high flow muffler canister style with a 4in tip (burnt) but I'm using a 2.5in piping mandrel bent from the headers back with no cat. I'm looking to have a nice deep throaty tone and be very loud!!!
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Enthusiast ![]() Joined Aug 23, '09 From Ohio Currently Offline Reputation: 0 (0%) ![]() |
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. Okay so my question to you... if it were you, would you get a header and if so what brand? I've heard of DC but do they make headers for the 7A-FE. And can you add a cat. to a custom exhaust, I mean you can but how does it work? I'm about to have this done to my 94 ST! I ordered headers, a cherry bomb (glasspack style) resonator, and a high flow muffler canister style with a 4in tip (burnt) but I'm using a 2.5in piping mandrel bent from the headers back with no cat. I'm looking to have a nice deep throaty tone and be very loud!!! ![]() What header did you get? And yes I'm doing 2.5 inch piping as well. You sound excited like me! This will be my first engine mod! |
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![]() Enthusiast ![]() ![]() ![]() ![]() ![]() Joined Apr 24, '08 From Orange County, CA Currently Offline Reputation: 33 (100%) ![]() |
mehh 2.5 inch exhaust on an st I don't know about that you might be losing power???
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Enthusiast ![]() Joined Mar 29, '11 From Bloomington, IN Currently Offline Reputation: 0 (0%) ![]() |
^ Yeah, let us know if the performance changes at all. 2.5 on a normally aspirated engine might be too big.
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Enthusiast ![]() Joined Aug 23, '09 From Ohio Currently Offline Reputation: 0 (0%) ![]() |
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Enthusiast ![]() Joined Jul 8, '09 From DuBois PA Currently Offline Reputation: 8 (100%) ![]() |
^ Yeah, let us know if the performance changes at all. 2.5 on a normally aspirated engine might be too big. What would happen if you put 2.5 on? Would it really lose power? does it matter? its a st This post has been edited by sincerelyseb: May 18, 2011 - 3:42 PM |
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![]() Enthusiast ![]() ![]() Joined Aug 7, '05 From Columbus OH Currently Offline Reputation: 3 (100%) ![]() |
Are you trying to gain more power by re-working your exhaust system and getting a header, or are you just looking for more sound? I would be careful opening up the exhaust too much on an st or any n/a motor for that matter because you will lose lower end power and torque
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![]() Enthusiast ![]() ![]() ![]() ![]() ![]() Joined Apr 24, '08 From Orange County, CA Currently Offline Reputation: 33 (100%) ![]() |
yes you will lose power down low the st only outputs a weak 115hp with a full exhaust and intake. Most Japanese Exhausts (for the ST202 with 177hp and ST202 SS-III with 197hp naturally aspirated engines) come in 60.5mm exhaust piping. Anything bigger than that and you would lose some torque and gain top end
I've read that some Integra Type R guys have used 2.5 inch catalytic back exhaust systems with good results, I have not seen any dyno videos of this so you'll have to do your own research. This post has been edited by BonzaiCelica: Sep 12, 2013 - 11:24 PM -------------------- For Sale Items:
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![]() Enthusiast ![]() ![]() ![]() ![]() ![]() Joined Aug 2, '05 From Guam Currently Offline Reputation: 15 (100%) ![]() |
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. Okay so my question to you... if it were you, would you get a header and if so what brand? I've heard of DC but do they make headers for the 7A-FE. And can you add a cat. to a custom exhaust, I mean you can but how does it work? I'm about to have this done to my 94 ST! I ordered headers, a cherry bomb (glasspack style) resonator, and a high flow muffler canister style with a 4in tip (burnt) but I'm using a 2.5in piping mandrel bent from the headers back with no cat. I'm looking to have a nice deep throaty tone and be very loud!!! ![]() What header did you get? And yes I'm doing 2.5 inch piping as well. You sound excited like me! This will be my first engine mod! the problem is the 5sfe and 7afe only have ebay brands, i know there are some other branded ones long ago, but they seem to be lost in space now. its one of those, we gots no choice. ^ Yeah, let us know if the performance changes at all. 2.5 on a normally aspirated engine might be too big. What would happen if you put 2.5 on? Would it really lose power? i would stick with a 2.25, that 7afe just don't put out enough, in fact a 2.5" on a 5sfe is a little too big, switches the power too far to the right instead of improving midrange. if you got like cams on a 5sfe or a decent built one it would be good though. yes you will lose power down low the st only outputs a weak 115hp with a full exhaust and intake. Most Japanese Exhausts (for the ST202 with 177hp and ST202 SS-III with 197hp naturally aspirated engines) come in 60.5mm exhaust piping. Anything bigger than that and you would gain torque and lose top end or is it vice versa?? I've read that some Integra Type R guys have used 2.5 inch catalytic back exhaust systems with good results, I have not seen any dyno videos of this so you'll have to do your own research. its alright on a type r cus they push out decent power without having to lose torque as much as a 7afe would down low, which the 7afe is already low torque. This post has been edited by trdproven: May 18, 2011 - 10:10 PM -------------------- 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| |
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![]() Moderator ![]() ![]() ![]() ![]() ![]() Joined Nov 5, '07 From New Zealand Currently Offline Reputation: 3 (100%) ![]() |
Merged with the other custom exhaust thread. why have 2?
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![]() Enthusiast ![]() ![]() ![]() ![]() ![]() Joined Feb 11, '08 From Auckland, New Zealand Currently Offline Reputation: 0 (0%) ![]() |
Wow an old thread, just going back on a bit of history, at the time I thought 3S-GE were equipped with 2.5 inch they are actually 2 inch I don't know why I thought 2.5. Even my GT4 originally had 2" after the cat and thru the flexi, and then onto a 3" aftermarket system.
I have 3" from the back of my turbo to the tail pipe now with just 2 resonators and a canister in the rear, no cats or bull**** small pipes. -------------------- Mike W
1996 Toyota Celica ST205 GT-FOUR GT2860RS turbine, TiAL mvr44, JE 86.5φ piston, Clutchmasters FX400, APEX P-FC 269awhp / 273ft-lbs |
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![]() Enthusiast ![]() ![]() Joined Jan 16, '09 From Cyprus Currently Offline Reputation: 10 (100%) ![]() |
So i got JDM st202 with 3SGE (ss2)...original have 2 inch pipes....
....so i change to HKS manifold and HKS downpipe (wrap them both) plus Magnaflow high flow cat. magnaflow resonator and Magnaflow street version Mufler - all pipes are on 2,25 inch Results: minuses: the car i is to loud and my low and middle torque just dissapear ![]() pluses: car goes better on high RPM! so for me i spend so much money for little more power on high RPM but the middle torque miss me so much!!! I don't recomend bigger pipes to car with less power than 200hp.... cheers Dimitri p.s. thinking to change my backbox mufler with Apexi SW2 (wich is bigger than magnaflow one) and the resonator after the cat with 1140 Vibrant Performance Ultra Quiet Resonator so i can get back some of my backpresure....and low and middle torque..... This post has been edited by cyprus_gt: May 19, 2011 - 1:22 PM -------------------- ![]() |
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![]() Enthusiast ![]() ![]() ![]() ![]() ![]() Joined Aug 2, '05 From Guam Currently Offline Reputation: 15 (100%) ![]() |
^ its true its the pros and cons of the exhaust setup. if you like torque don't upgrade if you like performance on the top end, then upgrade. You win races more with the powerband moved to the right, but it still needs to be balanced with some torque. Straightflow lets you stay longer in 3rd and 4th gear. I went back from 2.5 to 2.25 and now I have some midrange torque back.
-------------------- 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| |
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![]() Enthusiast ![]() ![]() ![]() ![]() ![]() Joined Apr 24, '08 From Orange County, CA Currently Offline Reputation: 33 (100%) ![]() |
you need a engine swap badly trd proven jus sayin
![]() on the other hand I got this information from the beams owners group : 3" = 275 to 425 HP 2.5" = 225 to 275 HP 2.375" (60mm) = 200 to 225 HP 2.25" = 175 to 200 HP 2" = 125 to 175 HP These are just 'general' guidelines, routing/bends/mufflers/etc will all change how the system will actually work out. So 2.25" using nice mandrels and good flowing mufflers/cats/etc would be perfect for a stock motor, 2.375"/60mm very good and not so big that you would see much in the way of losses and would be great for lightly modified engines. 2.5" is good if you have plans to modify a little more heavily and/or are going to use it as a track car. Exhaust sizing doesn't make horsepower. It keeps you from LOOSING horsepower due to restriction. Your looking for a balance that keeps the exhaust gasses/air FLOWING at an ideal speed (around 240-260 FPS IIRC). Too small restricts it by choking flow off at high RPM. Too large slows it down by having too much room for the exhaust gasses to expand, which creates a slow moving 'wall' of exhaust. This post has been edited by BonzaiCelica: Sep 12, 2013 - 11:25 PM -------------------- For Sale Items:
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![]() Enthusiast ![]() ![]() Joined Jan 16, '09 From Cyprus Currently Offline Reputation: 10 (100%) ![]() |
^ its true its the pros and cons of the exhaust setup. if you like torque don't upgrade if you like performance on the top end, then upgrade. You win races more with the powerband moved to the right, but it still needs to be balanced with some torque. Straightflow lets you stay longer in 3rd and 4th gear. I went back from 2.5 to 2.25 and now I have some midrange torque back. ....so just order the Apexi SW2 muffler and Vibrant Performance Ultra Quiet Resonator ...the problem is that now all my pipes are in 2.25 inches and this 2 part are only available at 2.375 inches so i hope to be ok but is a very small difference ![]() ![]() cheers btw: the car have ICON superchip box wich reprograming the ignition and K&N air filter plus aftermarket sparks and sparkplugs....so for this 17 years old car she goes soooo nice ![]() when i put the new parts will let you know - i hope i didnt spend my money for nothing ![]() This post has been edited by cyprus_gt: May 20, 2011 - 8:56 AM -------------------- ![]() |
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![]() Enthusiast ![]() ![]() ![]() Joined Jan 30, '11 From Albany, NY Currently Offline Reputation: 4 (100%) ![]() |
how would you think a 2" inlet and a 3" outlet with silencer work on a stock (I think) st exhaust. Mind you I'm not looking for power just looks but my main issue is the loudness, I don't want the car to be loud while driving at 70mph (3,000 rpm) as this would drive me nuts on the highway.
I'm looking at something like this http://cgi.ebay.com/ebaymotors/New-2-Inlet...sQ5fAccessories This post has been edited by NYp8tBaller07: May 21, 2011 - 2:00 PM -------------------- ![]() Power in Balance 90 ST coupe- Sold 95 ST hatch- Dead :’( 02 Impreza RS- DD |
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![]() Enthusiast ![]() ![]() ![]() ![]() ![]() Joined Aug 2, '05 From Guam Currently Offline Reputation: 15 (100%) ![]() |
^ its true its the pros and cons of the exhaust setup. if you like torque don't upgrade if you like performance on the top end, then upgrade. You win races more with the powerband moved to the right, but it still needs to be balanced with some torque. Straightflow lets you stay longer in 3rd and 4th gear. I went back from 2.5 to 2.25 and now I have some midrange torque back. ....so just order the Apexi SW2 muffler and Vibrant Performance Ultra Quiet Resonator ...the problem is that now all my pipes are in 2.25 inches and this 2 part are only available at 2.375 inches so i hope to be ok but is a very small difference ![]() ![]() cheers btw: the car have ICON superchip box wich reprograming the ignition and K&N air filter plus aftermarket sparks and sparkplugs....so for this 17 years old car she goes soooo nice ![]() when i put the new parts will let you know - i hope i didnt spend my money for nothing ![]() that is a good set up mind you like the oval styled canister. the tanabe would be a good choice too since ive heard them and they are pretty quiet. but yea, just get the ultra quiet resonator the oval style and the longest you can find to keep the noise down. If you are running catless or doublecatless if cali model, you can always double up on the resonator later. but your original set up is ideal and will be deep but running catless makes the change. but whatever sound you want you can get, it can be adjusted for sound, with resonators. its the deepness you can't adjust, thats the muffler. you have no worries about the pipe sizes being different, you can even go from 2.25 and switch up to 2.5. so 2.3 is a smaller change from 2.25. This post has been edited by trdproven: May 21, 2011 - 8:09 PM -------------------- 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| |
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![]() Enthusiast ![]() ![]() ![]() ![]() ![]() Joined Apr 24, '08 From Orange County, CA Currently Offline Reputation: 33 (100%) ![]() |
not my video but thought I'd share how the Apexi N1 exhaust sounds, in which you can sometimes find used on nengun auctions...
http://www.youtube.com/watch?v=HJbGECW4XpQ I'm putting up thees links of hks exhausts since Rusty is too much of a wuss to do an exhaust clip of him revving his engine or a flyby. http://www.youtube.com/watch?v=cLazdOWcjqY HKS REVING http://www.youtube.com/watch?v=k4wjE1NOFok Celica ST202 on dyno with full stainless Steel exhaust System. This post has been edited by BonzaiCelica: Jun 2, 2011 - 11:12 PM -------------------- For Sale Items:
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![]() Enthusiast ![]() ![]() ![]() ![]() ![]() Joined Feb 24, '07 From Oahu, Hawaii Currently Offline Reputation: 23 (100%) ![]() |
Gone with the Apexi N1, in with the new
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![]() Enthusiast ![]() ![]() ![]() ![]() ![]() Joined Apr 24, '08 From Orange County, CA Currently Offline Reputation: 33 (100%) ![]() |
So you had an universal 60mm apexi n1 muffler and you had a exhaust shop makd u a custom over the axle steel piping exhaust? Im talking to 808celica
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