Well, I first want to see that Borla is great. I brought back my old exhaust (140041) early today and picked up the new one. It cost me $103 and it s totally worth it. They did not have to do that. So thanks to David Borla and Richard Romero who were both great helps.

Now, on to the performance difference. This is all G-Tech based and even though the G-Tech is not 100% accurate, it is relatively accurate to itself, and that is what matters. So what did the exhaust do? It went .19 faster in in the quarter and gained 2mph. I did not see the 0-60 flash as I was concentrating too hard. I disconnected the groundwire before doing the baseline yesterday and I did it again today before putting in the new one. So that is the diffence between the old and new version Borla. I never posted numbers from the old version because they were identical to stock.

This thing sounds great too. Much better than the old version, which I already thought sounded much better than stock. It went on just fine even with the S-Tune sway bars. No install hiccups at all. I highly recommend it. BTW, if your are worried about how the clamps hold up on the system, let me tell you that it was a friggin' bear to get the one clamp off the old system, so no worries there.

I think there is a reason that this setup is producing more power than the other JDM setups so far. The Z is no little 1.6L high revving 4 banger. That is pretty much all the JDM manufacturers are used to. Borla has experience with larger dispacement engines like the 3.5L in the Z. Oh well, that's my theory.

 

I will dyno the next time I go to Buttonwillow (about a month). That way I can see how my fully broken in car compares to the 229HP it put up when it was a month old (4th gear pull). I will do another 4th gear and a 5th (true 1:1). We shall see.

 

Tell that to the same JDM companies that average about 30 hp with their Supra exhausts. Then again, the Supra is a turbo who's power is all choked up.

 

You answered your own statement! Anyone can just put a huge pipe out the back of an FI car. Doesn't take much experience.

 

I wonder how much R&D Borla did for the dual exhaust. They probably went through tons of prototype before they finalize this one..

 

This .19 off 1/4 and 2mph gain based verus stock Z, or with the current modifications you have?

 

Just from the exhaust. I ran the the same test, day before, with the old Borla exhaust.

 

Hmmm... 2 mph thats my theory of what my car should do on the track next tuesday.... interesting!!!

 

interesting opinion on G-tech, that is called "reliability" when it is constantly accurate against itself, but may not be 100% correct (which is called "validity"), see I did learn something while working on my masters thesis

the .19 quater would be consistant with approx 20 HP, sounds GREAT

 

Smart guy!

 

That's funny, because I would have called it "repeatability" and "accuracy" instead (from an engineering/statistical standpoint).

But then, I only have a bachelor's...

Hehe,
D'oh!

 

That number is pretty close since from my past experience, everytime the car gain 10hp, it drops 0.10 sec in the 1/4. May not be true for all cars, but just something I go by. Good deal!

 

...or "repeatability" and "reproducbility" if applying 6 Sigma / Process Excellence Capability terminology from the Gage R&R principles.

 

That's what I was going to say but, hey, I have a degree in Marketing. This is making it hard to decide if I should buy this or make my own.

 

working with numbers for NIST standards at one point "repeatability" is also correct.

 

Precision.. vs Accuracy is what we always learned

Precision is repeatable.. Accurate is well.. right!

 

so, what, everybody thinks they have a masters?

 

That's what I learned!

 

this post is getting pretty funny.

when I learned it, "Validity" was the same as "accuracy", but for some reason they REALLY wanted us the use "validity" in our terminology when presenting my thesis and when turning it in, I think the the REAL WORLD (not academia) they are the same and perhaps the terminology I was taught was b/c it was used for medical purposes

 

I have a Masters... but my thesis was that this system Kick ***!!!