Yea,
First its not a Greddy exhaust , its an Apexi GT spec exhaust. Its a top notch exhaust.

 

Sorry Ernie. It's a greddy. The APEX GT has full stainless piping. You got that pic from rx7.com. rx7.com should have the specs on it.

Chuck

 

Apex=good!

 

That's definately not an Apexi GT exhaust... if anything it looks more like the Apexi N1 or HKS Hiper but actually, I think that's the newer Trust (Greddy) Power Extreme II exhaust.

 

guys here's the official info :

for fd's its: 80mm piping and 115mm tip
fc's its a dual exhaust: 60-80mm and 115mm tip

 

i inquired abt this exhaust a while ago..is basically the apex n1 but with trust engraved in the side...after lookin long and hard i went with the blitz nurspec 100% stainless( i know the apex ni isnt but not shure abt greddy) the exhaust is incredible..a bit loud @ WOT but thats with dp, mp, and non seq turbos...
heres a vid from the track if u wana hear it

http://www.vosko.net/media/bacon-2.avi
right click and save as

but to make a long story short the blitz is like
350 bones or less and the geddys like 445... but i live my nurspec

 

oh yea, for those people that aren't good at converting, 80mm=3.1"s doesnt seem like a race exhaust to me, pretty weak hehe. and the tip is 115mm=4.5"

 

Sorry to say it, but the piping on the GReddy Jspec exhaust pictured there is 3 3/4" pipe! I haven't measured mine personally, but I know in "Turbo" when RX7 had their epa legal single turbo 7, it had the exhaust and they stated it was 3 3/4". And I definetely know it's bigger than my DP and MP(they're 3") just by looking at them.

It's a great exhaust, and it's cheap too. Straight thru canister, none of that emissions packing bullshit.

Go buy yours today!

 

wups, i was looking at the power extreme II not the power evolution II hehe.

its actually: 80-94mm. so 3.1"-3.7" i still prefer the HKS Racing hehe 4"! of course its 1650$

 

i'm pretty sure the one rx7.com is selling is the power extreme ii and not the power evolution ii if it's selling for around $450 so you're probably right about the piping being 3.1". the power evolution ii sells for around $550 in japan so that means rx7.com would have to take quite a loss if they were to sell it for $450.

 

Well, all I know is that compared to my 3" MP and DP, the exhaust is MUCH larger!