I have a 89 n/a supra and I want a bigger exhaust. So my question is will a mk3 turbo 3 inch exhaust fit on my stock header or how do I get it to fit does it just bolt on?? The turbo exhaust is a cat back. Thanks for reading this post
exhaust question
- Thread starter 89 hardtop
- Start date
89 hardtop;1805890 said:
A person on here is sell a 2.5 inch for na. Search for it.
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Devin Hutchison;1805894 said:
Instead of acting like this person and posting a useless post I'll provide a link.
http://www.supramania.com/forums/sh...o-2.5-quot-Cat-back-Systems-Mufflers-and-Cats
As to answer your question some people say yes, some say no.
IndigoMKII;1805901 said:
Sorry, I'm on my phone and have no way to grab the link in tapatalk. I gave him info he could have searched.
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3in is too big for a na.
All exhaust systems are cat backs and from memory the turbo exhaust is shorter for the cat back. Would have to have a section welded to Mate it up. Doesn't bolt on.
All exhaust systems are cat backs and from memory the turbo exhaust is shorter for the cat back. Would have to have a section welded to Mate it up. Doesn't bolt on.
The NA HKS exhaust that's on the for sale section use to be mine. I had it on my 87 turbo and it bolted up just fine without any fitment issues. I now have the 3" bic stealth exhaust. So I dont think there's any difference in terms of fitment.
i had fitment issues with the flanges ended up cutting the flanges getting a proper high flow cat (with the honeycomb) and then welding it together.
The 2.5" Pacesetter exhaust is a nice fit, but tends to develop a nasty drone at around 2000 rpm. If you were prepared to put a resonator in it, it kills most of the drone, and the pacesetter exhaust is cheap enough to make it worth modding a little that way.
Pacesetter has a resonator.
Any header except for stock that I know of has to be modded a little.
http://www.obxracingsports.com/products.php?pk=1820 Looks like the best choice for a NA
Any header except for stock that I know of has to be modded a little.
http://www.obxracingsports.com/products.php?pk=1820 Looks like the best choice for a NA
not enough to justify the loudness for only a few hp.. I HATED MY 3INCH BORLA on my n/a... i was trying to do a straight trade for a stock system but i could never find anyone. Right now im waiting for my raptor racing exhuast to come in 
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.Not getting what you are saying, I have a pacesetter that had to have a little grinding and some of the mounting holes opened up to get it bolted on. Heard the same about the OBX
"hotdog" Looks like a "resonator" to me, was on the cat back system I put on also made by Pacesetter.
My knowledge...might be more...might be less...I'm probably 3times as old as you are...you do the math
"hotdog" Looks like a "resonator" to me, was on the cat back system I put on also made by Pacesetter.
My knowledge...might be more...might be less...I'm probably 3times as old as you are...you do the math
A hotdog is just a lump in the pipe, a resonator is a small open chambered muffler. They both do different jobs as far as resonance goes.
I have a set of extractors on my car right now that needed zero mods to fit and fit perfectly.
Allow me to show you:
As for the age card, I seriously doubt that. (not that it's cool getting old!).
I have a set of extractors on my car right now that needed zero mods to fit and fit perfectly.
Allow me to show you:
As for the age card, I seriously doubt that. (not that it's cool getting old!).
AJ'S 88NA;1808776 said:
Never heard of an extractor brand header. Looks like the pacesetter as far as what the pics show.
The problems I'm talking about was with the flange fitment to the head, there was some interference with the distributor and like I said some of the holes didn't line up.
The problems I'm talking about was with the flange fitment to the head, there was some interference with the distributor and like I said some of the holes didn't line up.
Jimbo;1808601 said:
yes they do, the stock exhaust is extremely restrictive after the catalytic converter where that pipe does a Z before the muffler is the issue. the exhaust manifold isnt bad but could be better. the obx manifold makes it much louder because of the increase in tracking and it adds a little butt dyno power on the higher rpms. downside to that obx header is taht it makes the engine bay REALLY HOT and is difficult to get to the oil dipstick so a header wrap is a good idea.
a little modification of the header is required there is too much metal usually infront of the #1 cyl exhaust port that needs to be chopped off.
AJ'S 88NA;1809007 said:
Extractors are what the rest of the world call headers. The brand of "header" I have is MPH. Here is a link to one of their Ebay auctions, like I said, these headers dropped on, unlike pretty much any set I've used before. They literally just slid onto the studs on the head, no interference anywhere at all:
http://www.ebay.com.au/itm/TOYOTA-S...=AU_Car_Parts_Accessories&hash=item4163040919
Typhoon;1809426 said:
Glad to hear they dropped on, like I said a couple times now, most have experienced a few problems with what most identify with, pacesetter and OBX, but glad to hear you are in touch with "most of the ebay world"
BTW google headers and extractors see which hand gets full first
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For me I like 3" exhaust, some of the other guys don't. Is it louder, maybe depends on what muffler. I ran 3" on my 84 MKII 6MGE years ago everybody said I was crazy. But with just an exhaust change the car was faster, went 9.8s from 10.0s in the 1/8th mile. Not a rocket but this was 1992, so that was doing something back then. You will loose some bottom end grunt as far as overall power gain:dunno: nobody has bothered to find out. It's a N/A why bother the usual response! On the flip side your power band shift is really nice, meaning more mid/top end. I will say if your car is automatic you will not like it, been there wont do that again:3d_frown: On this header/extractor debate, stateside we have Pacesetter, OBX, Thorley(if you can find them)... Across the water we don't know what is out there, boils down to the it's a N/A thing why bother. Very few less than 10 care! Nice to see another brand or rebrand out there. But its still the same old design (Pacesetter) that has been our only choice for years just a little pre modified to easy the installation pain. Raptor Racing in my opinion has the best header for I6 Toyota prehistoric engines 5,6,7MGEs. Problem is it only fits MKIIs.. It all comes down to which road you want to travel. If you plan to go turbo or 2J or 1J you will want to save your money. There will be an overload of info and cookie cutter copies damn near turn key combos at every corner! If want to travel down the N/A route were there are NO signs of life for miles and miles, just a few crazies here and there(AJ'S 88NA, Bugwugger a few others that rarely post and me) read this http://www.supramania.com/forums/showthread.php?65648-Header-Exhaust-System-Design. For me I don't like going out and at the next three tables it's like looking in the mirror:biglaugh: Good luck....