RyanSteel

@Samurai, the Unichip is capable of adjusting duty cycle & boost..........

Ha ha too many exhausts available & too many options.......

Yes I already have a big problem with ground clearance, I have the Toms Advox suspension fitted with 18's. My catback pipe is 85mm in diammeter now, but it scrapes when I go over a bump . Well, I am going to do a big single turbo upgrade in the future. So I was thinking to go for a 3" downpipe which would be appropriate for now and get the right exhaust one time so its not necessary to upgrade the exhaust when I do a big single turbo conversion one day. And the reason for running a bigger exhaust now is for the loudness ..........

@Nic thanks for the pic. This is also how I understand it. Well, I order the parts to fit a Jap spec through my importer, so I believe everything would be fine. Was just wondering between 2 x different exhausts. The HKS Ti Race 4" and the HKS Carbon Titanium Exhaust.............fitted to the Rod Millen downpipe. Here are 2 x links to the different ones: http://www.importparts.co.za/catalog/p29803/HKS-Titanium-Racing-Muffler-Exhaust-Toyota-Supra-T-93-98/product_info.html http://www.importparts.co.za/catalog/p29802/HKS-Carbon-Titanium-Exhaust-Toyota-Supra-Turbo-93-98/product_info.html

@Nic ok I have a connection here in South Africa who imports all parts, he has a website to: http://www.importparts.co.za I would rather order the stuff through him, that if it is incorrect, I can always send it back to him. Thanks for all the information

@Nick, thank you for all our info. I will then make sure I get the restrictor ring aswell. Is it really worth going for the HKS Titanium compared to the HKS Carbon Ti? And I was thinking of getting a Rod Millen downpipe, but not to sure if it would work with the HKS exhausts, bacause as I read, the HKS Downpipes are the only ones that only removes the first CAT and not the second CAT. So still confused Yes there are only 2 x Supra TT's running around here in our area. The others are about 1200km away from me......

Yes you are correct, the bypass is just for the fuel cut. I would need a HKS speed limiter defencer aswell, cause im running out at 180 km/h in 4th gear already he he The car is stock, not sure what boost I am running, I have a cold air induction & an aftermarket mid pipe running from after the mid cat to ther rear of the car. Had the car on the dyno last week, it pushed out 314hp with 407nm Torque. Don't think its bad at all, because we are running 95 unleaded fuel with an estimate 88 ron rating :( Yeah I know it sux. My tuner has his own mixture that we are going to use, You add 300ml octane booster to 60L of fuel, then you get "x" amount. Not sure what the end result is, but he says it makes a huge difference by uping the octane rating.

@Amam00123, Well I am not sure if it can limit the boost. I will speak to my tuner on Tuesday and ask him. We are also going to bypass the MAP sensor wiring going from the MAP sensor to the ECU, to prevent the "boost protection" above 1 bar boost & fit an external injector driver for better control. The Dastek Uniq Chip is capable to manage all this. So I will ask my tuner about the limit boost ........And thanks for all the technical information

@Aman00123, I am still not all getting the idea with the restrictor ring. The guy who is going to do my chip, is very well known in South Africa. He said with the chip, he can control both turbos' boost at any level or rpm range when they spool. I am not yet going to fit a boost control, I want it to be fixed for now. So if he can control both turbos' boost, why fit a restrictor ring? Cause we are aiming to run both turbos at about 1.1 or 1.2 bar boost. The reason for the "Unichip" is the following: The chip gets spliced into my original wiring at the ECU, the parameters is fully controleable & adjustable. For the complete chip, fitted, installed & dyno would cost me about R4500.00 (South African Rand), in others words, more or less 640 USD or 392 Pound. I know of none here in South Africa who can tune FC Commander or AEM. Maybe there are, but who knows??? Im not going to take the risk. This is the only reason why I can not go for something else Hope it makes sense?

@Mooret, all i am wanting is a high power exhaust system which is extremeley loud. As I understand, some of the HKS exausts are not fully stainless. Eventhough they are marketing them as fully stainless. It is pointless having a 75mm exhaust on a Supra. I would reckon I should go for 80mm or higher. Basically all that I am after, is the following: 1) As loud a possible 2) Minimun bends 3) Less restriction possible 4) One which would give the most HP gain possible I also had a look at the HKS Carbon Ti exhaust which does not look bad. But I am wanting to do a big single turbo conversion one day. So I want to make the right descision at first hand. And same with the down pipe......

Hey people, I am about to order an exhaust for my Jap Spec 1993 TT. Everything is still stock on my car. I had a look at the HKS Titanium Race exhaust 102mm diameter piping. NOT THE HKS CARBON TITANIUM EXHAUST. Will this exhaust suite my application? And should I go for a 75mm, 80mm or 90mm downpipe? I am going to run stock turbos for now. Just having a Dastek Unichip fitted and remapped. Will upgrade the fuel pump with some new plugs aswell......... I am also aware that I would be needing a restrictor ring

Hey people is there any other alternative part number for a BKR6EP spark plug for TT Supra 1993?

@Ellis thank you

Hey guys, i am very very confused. Can anyone of you tell me if the following oxygen sensors are interchangeable on my Jap spec 1993 TT 89465-19635 89465-19725 Do they differ from each other? I want to order a new sensor for my car, but I am very confused....

@Samurai thanks

Ive done that once on my Sierra XR8 that I had! Lol

Ok sure will do so thank you. And does any one know what the oil filter part number is for the Supra TT '93?

He he I am looking for something very loud.........Had someone told me the HKS Drager kills his ears whilest driving. Not sure how true it is though

Ok I seem to be understanding the principle of the restrictor ring............. And would you recommend I'd go for a different exhaust than the HKS Drager?

@Josh thank you! Will check it out

I am slightly limited with my finances at this stage, so the intercooler unfortunately should stay stock for now ......"YES I KNOW ITS A BIGGG MUST"

Hey Samurai, we import cars, we apply for a permit & then with all the legal paper work etc etc, we bring in the cars to South Africa. My Toyota Supra is now 100% legal on SA roads. Believe me, there are very few SA tuners who are good. I am from Caledon (about 1 hours drive away from Cape Town) There is this one guy from Cape Town, Herman Monke. He is from Mace Performance. He is very very good. He would be doing the splicing of the piggy bag system on my Supra. I am an Auto Electrician, I can also do it. But seeing that I do not have enough tuning experience & lack some knowledge, I leave it to him, because he would be my tuner. The Dastek chip is easily tuneable & very user friendly. I can not afford AEM. he he I am not understanding this . Why fit a full decat exhaust & then restrict it with another restrictor ring afterwards? .......Can't I just run a boost controller with a proper fuel cut defender?

I want to run the following: HKS Drager Exhaust 95mm diameter HKS Downpipe Dastek Unichip Turbosmart TS-0303-1002 Fuel Cut Defender Walbro 255 Fuel pump "Already have Cold air induction with custom made atmospheric BOV" Denso IK22d5 spark plugs Not sure about the boost controller yet What you think? But why do I need to have a restrictor ring in my exhaust if I run a boost controller?

I want to run the following: HKS Drager Exhaust 95mm diameter HKS Downpipe Dastek Unichip Turbosmart TS-0303-1002 Fuel Cut Defender Walbro 255 Fuel pump "Already have Cold air induction with custom made atmospheric BOV" Denso IK22d5 spark plugs Not sure about the boost controller yet What you think?

@Dnk I appreciate all the info as I am new into this 2JZ-GTE motor. Use to have a schooped up Scooby. I understand the principle of the fuel cut device & the boost controller. I can always up the boost by tuning my piggy bag ECU's parameters. The part which I don't understand is, why do I need a restrictor ring if I run a boost controller? The boost will be regulated by the solenoid valve & the wastegates wouldn't cause over boost? Or am i misunderstanding it?