i would go on a limb and say regardless of the manufacturer - they will all make about the same power within 1 hp and 1 ft lb torque - it is just an axle back section so you are taking into account changes in pipe routing and muffler flow and of course sound on the different designs - the car is bone stock other than changing out the axle backs - if the car had some more modifications done to it different axle backs might excel a bit more but in the state the car is in i don't really think it would matter

James Innes
James@GSCMotorsports.com

 

If im looking at it right isnt the TRD exhaust the same thing as the sp2 well it looks the same. And i though the trd exhaust was made by greddy, ?

 

Of course NOT!!!
TRD and GReddy are two different companies.
and the structure of the exhaust is different... maybe in a certain way they look alike, but they are different.

 

Hey all i know is that the trd exhaust is made by like borla or some1 else, not trd themsleves, I think it actually might be borla,

 

if i remember reading that now backpressure is good, the problem with using too big of an exhaust pipe isn't loss of backpressure, but the speed the gas is exiting. something about how in a larger pipe if the hot gas isn't moving fast enough it will expand and move slower. or something like that. i'll try and find the post and link it

 

if i remember reading that backpressure is never good, the problem with using too big of an exhaust pipe isn't loss of backpressure, but the speed the gas is exiting. something about how in a larger pipe if the hot gas isn't moving fast enough it will expand and move slower. or something like that. i'll try and find the post and link it

 

velocity and volume are the key

 

*BUMP*

Any header or s-pipe results?

-Ed

 

Look about half way down the page or just go here:
https://www.scionlife.com/forums/viewtopic.php?t=82724

 

My bad; thank you!

-Ed

 

just curious if you guys plan on doing more exhaust tests. and if so i would be interested in seeing the tanabe exhausts tested. thanks! you guys are great!

 

hmmm.....interesting...gonna get me one

 

ok darn it this needs to be sticyed i just spent a good while seraching for it!

 

is it possible to get a dyno of a stock tC with hks axle back ?

 

Test Borla axle back and let us know the out come.

 

does anyone know the weight of both the sp2 vs the evo axleback exhausts?

 

Wonder how many ppl is going to just unbolt there exhaust now hehe

 

agency power exhaust? anyone test it

 

ok seriuosly people stop bumping a thread from 2005 with no info since then. I believe this company has gone under plus nobody is gonna do tests like this anymore with so many things on the market. Just read reviews cause thats all your gonna get.

 

will the stock exhaust connect to my megan midpip 2.5 piping with a 2.25 inlet