I think I've read all the posts about the Megan OE RS S-pipe back exhaust. The sound is exactly what I'm looking for, but........... there is a lot of contradicting information about this exhaust. Originally, everyone claimed this to be a 2.5" exhaust, but the Megan website says 2.25" .
https://www.meganracing.com/products...=518&catid=102

Then I called Megan Racing (I actually got to talk to somebody), and they told me it is 2.5". I am inclined to believe 2.5", but can anybody else confrm anything?
Next qustion...
Some people on SL have claimed this exhaust is a sound option, not offering any gain in horsepower or torque, and nobody seems to have dyno-tested this exhaust. I asked Megan Racing, and they said nobody has dyno tested yet. He also said I should expect an 8-10 whp gain using the S-pipe back exhaust. Being that I am supercharged, I hope to gain a little bit more.
I know this is a lot to read, but this exhaust seems great, I just need to know if it is worth the money. Thanks in advance for any help.

Ryan

 

When I called to verify the piping size they told me 2.35" and yes it is indeed.. because I measured it myself..

I have a video when I had the Megan OE spipe back exhaust here it is..
http://www.youtube.com/watch?v=H2CLyaKhW9c

I currently now have the TRD Axle back put on in place of the Megan OE axle back..
I also bought the megan s-pipe so I am now header back exhaust..
My setup is Stock Header ->Megan S-pipe ->Megan Midpipes -> TRD Exhaust
I also have a video of that and here it is..
http://www.youtube.com/watch?v=vI5xDisMse4

I hope this helped somehow.. ahha
oh and i have not dynoed it yet.. :/

 

Thanks for the reply. I've seen your videos before, very nice sound clips. I love the sound of this exhaust. I will also be keeping the stock exhaust manifold.
Why did you change the axle-back? Did the butt-dyno feel any gains when you got the OE-RS?

 

the transition from my zpi spipe back exhaust to the megan OE exhaust was hard to tell.. now that i have the spipe i dont remeber how it felt without it.. all i know is that the spipe made a big difference.. butt dyno wise..

i got the trd exhaust because i wanted more growl
thats just me.. ahha

 

That's good to hear that you didn't seem to lose power from ZPI to the Megan. The ZPI is dyno proven to gain around 12 whp. I think this is the exhaust I'm gonna buy. Where did you get yours? I heard C2 auto is a good place to buy Megan stuff.

 

I ordered this exhaust yesterday from J at C2auto, $530 shipped. I'll post again after I get it installed.

 

could you measure the diameter of the mid pipe.

thanks

 

No problem bro! I just need it to arrive.

 

oe mid pipe starts off 2.5" at the s pipe but then where it gets to the rear section it get like 2.25"

This is from mine where it meets up with my injen axle back (2.5")

 

oh ok so its a 2.5" pipe with 2.25" flange reducers.

thank you

 

I measured inside diameter at one of the midpipe flanges. It is 2 3/8" or 2.38" at the flange. I got it installed yesterday. This exhaust sounds incredible!

 

hey jjos1 that connection looks like theres a leak in it, is there, cuz i think i got one, but i cant see without a lift...

 

No leak... you probably have one where the 2 mid pipes meet thats where I had a problem. I would check that first, I fixed the part in the pic as you can see it was angled a little bit up so it moved my axle back up towards the bumper. The one thing I have to say now that I did the mid pipe I get alot of black soot on the bumper, (I still have the front cat).