Getting it done at CnJ
Car is stock.
Just wanting to tune out a little bit of the VOD out, increase fuel economy and bump up the boost a bit.
They can't wait to do it (and neither can I!!!)

CONGRATS!  what did you get ATW?  any graphs?

my bad, didn't scroll up, damn good tune considering you have only the diff back done, let the rest of the mods begin haha...

odd that it increased the VOD, but with the 2nd turbo boosting to 14/15psi it will be a massive difference over stock
Guess the unichip doesnt really have much control on changing the stuff around the VOD.

Looks like a good result, congrats Should be a nicer drive

Hope it get's rid of the Ping for you on hot days

Wow that is awesome power from the stock gear, I'd honestly like to know what mine still gives, its still very smooth with 160k on it and stock tune (to my knowledge). I think it drives well anyway, best Auto I have ever driven. As an example I planted it from stop with a mate in the car last weekend and it pulled all the way to naughty speeds without any hesitations, no surging when I cruise at highways speeds, and so far, no pinging.. we'll find out when it warms up though. I'll try not to drive it on 35+ days anyway.

I am also interested to see what yours would do with a full exhaust system... I am tempted to just do my diffback for a little noise, but I am not going nuts since I plan to upgrade in a year or two. Would rather use the money on a newer ride, and as I said, pretty damn happy with how it drives.

Hey guys,

The Before dyno run had the diffback installed on it already.
I'd tossed up putting a full exhaust on it, but didn't really have the money for it at the time.

But as you guys have said, for the stock running gear, I'm pretty impressed with the results.
So far, I haven't heard any pinging, but the test will come in summer I guess. (and yeah B4cruiser... I agree we shouldn't have to worry about that!)

Just outta curiosity, if an engine pings, how many times can it happen before things go bad??

BigWillieStyles wrote:

Tune looks great, and good to see the results from a piggyback install. Makes you wonder what you would get with a full exhaust.

Just curious, was the before dyno run taken before the exhaust change?

Ill show you in the new year

Im going to do dyno runs of, std tune, car std, std car but tuned, and then hoping to find the differences in replacing downpipes, mid and rear exhaust, potentially headers too. And do it in stages to see what makes the most difference. Cost more but im curious to find out how things affect it.

What diffback do you have, and does it make a difference to the sound (got a clip?). I'm not looking to go nuts with mine. But also don't want a cannon, I was looking under it the other day and it seems to be decent size until the diffback, which it then steps down to the muffler..

I did my tax and got more than I was expecting back, so I may use a bit on the car.. Gen4 5 spokes is the current plan.. I needa ring the wrecker tomorrow and see what he has. The gutter rash and fading center caps is getting to me lol.

How hard does the car shove when you hit the secondary turbo? I dont have a tune, and only have a catback exhaust (with high flow cat) and when I hit the secondary, the car gives a big shove. Kind of makes me worry about how long my diff will last.

imprezab wrote:

I was planning on getting a 'nicer' diffback (a genome or a fujitsubo), but a 3" X-force came up for sale in the next suburb for me for $80 in good nick, and it cost me $100 to get it modified and fitted.
I didn't want a cannon either.
I was told I wasn't allowed one too loud (and I didn't want one either), and when you are driving with the windows up, it is just a quiet purr, but if you get up it, it is still not that loud.
I'll try and get a video of it today and put it up.

When I first bought my Legacy, I put a Sti Genome diffback on. It looked good and sounded good but was just not loud enough for me. Plus the sti item only has 2.5 piping, so did nothing for performance. A few months later, I purchased a Fujitsubo diffback which when on, it sounded a bit deeper but still not very loud. The Fujitsubo has 3inch entry and had better performance. Even with my full catback now, the car isnt very loud. TTs seem to be a lot less louder than the singler turbo cousins.

That sounds quite nice... and its not a cannon! I just want a bit of rumble, I am not chasing loud, just... sexy boxer noise? I found some wheels up north, the guy wants a tad too much... that and a diffback, bye bye tax cheque... hello sex on wheels? I might go speak to a decent exhaust shop about the exhaust.

tsg wrote:

That sounds quite nice... and its not a cannon! I just want a bit of rumble, I am not chasing loud, just... sexy boxer noise? I found some wheels up north, the guy wants a tad too much... that and a diffback, bye bye tax cheque... hello sex on wheels? I might go speak to a decent exhaust shop about the exhaust.

im putting an XFORCE MP#O2 under my b4