Primary pipe is stepped 8" plus 8", the first step is 1-5/8 second step is 1-3/4 
secondary is 2" with a 2.5 'tail pipe'

the first step is smaller diameter than the stock one.

The sizing came out of a program called Pipemax along with some discussion on Speedtalk forum with Calvin from Elston Headers.

I would have liked to go down to 1.5" first step but this being Australia I couldn't buy preformed bend with a long enough bend radius to make it work.  Well, not without tripling the cost of them anyway.
The only way to work around a bend that is too tight and go to a bigger tube size at the expense of some bottom end torque.  The flow on is every tube is 1/8th inch bigger than I wanted it to be.

Finished exhaust.   

Was worth the effort, the aim was to get it pull a bit harder out corners.  Lap times say I got it right.




 

 

For anyone on facebook.
recorded one lap at the Reid Park sprint.  
Second in class this year with a 58.00

 https://www.facebook.com/...18/?type=2&theater

Now that I have some time,  

I haven't run the car since this time last year.  I ran the Reid Park event last year taking 3rd in class and 13th outright with a fastest lap of 58.52, then life got in the way of the last few club events for 2015 and for most 2016.  

This years Reid Park sprint was preceded by dusting off the car and running one club event as a shake down as the car hadn't been run in almost 12 months.

First day of running saw lap times of 60.15, 59.47, 58.76, 59.34, 58.84, 59.34.
Ended the day early with a left front shock letting go and basically turning into a pogo stick, the understeer just got to much.

Went 'home' early.  Well went to work to pull the struts out of the orange car as working stock struts are better than leaking pogo stick adjustables.    
to save being awake all night working on the, I basically the complete assemblies out of the spare car and stuck them in race car.  A quick side by side comparison and measuring the wire diameter of the springs, there was a 0.8mm difference in diameter and everything else looked the same. the slightly stiffer spring sat the front up a bit higher, but at least the car driveable again.

Day two lap times:  58.87, 58.78, 58.00, 58.83, 58.14, 58.62, 58.51
 
The 58.00 was enough to get me 2nd in class behind a 56.46 and 11th outright. 

Last round of our local hill climb,  Second in class.
 
 
https://www.facebook.com/brad.mcgrath.376/videos/585969858272724/?l=9186605530369727747

 
 
 

Picked this up today.

2GR, new, never been installed in a car, never been started. 

Got the engine up on a bench and made some straps to bolt it to the bench.

Gearbox mounted.   2 Bolt holes line up straight up, two more need threads cut.  
I need to lift it off the bench to get a look at the others.  I will probably weld to the tabs to the bell housing to pick up a few other.  
 

If you need any help or advice Brad, let me know. I've already done the hard yards on this swap ;)

Where did you find a new 2gr?

rikkir
Where did you find a new 2gr?

was at the right place an knew the right people. 

The power steering bracket is broken,  not really an issue in an MR2 

It still has all the plastic caps on the heater pipes and throttle body etc.   There are a few small issues with broken fittings on the plenum and the wiring harness has been cut where we think the rear bank oxygen sensor should be.
Only really had quick look at that as I'm still not sure which path i'll take with the ECU.  

I can buy stock stuff.   Or the Link Storm will do the 4 cam phasers, the electronic throttle, variable intake and all the stuff this engine has.