i have the t1r exhaust system just want to reduce the noise so i just want to replace the muffler section to my stock r muffler. i know i have to do some modification. just want to know how many people have done this.. ill be going from a 2.5 inch midpipe to a 2.25 axleback. my headers are toda..

 

Only one person I know of who did something like what you are asking...
http://www.cardomain.com/ride/503605/2

 

anybody else experience this??

 

I've done this. I have a hytech replica header with 2.5" cat (punched out), 2.5" kteller midpipe w/ no resonator on my stock itr exhaust. It's quiet but sound gets very raspy around 3500+rpm but kinda deep. I will soon be taking the axleback part of my itr muffler and replacing it with 2.5" piping.

 

get a apexi world sport muffler and put it on their, it will flow nice and still be quiet not as much as stock but still good

 

I am running a similar setup on a gs-r
T1R Header > 2.5" T1R Testpipe > 2.5" T1R Midpipe > ITR Axleback

Sounds awesome, i had the T1R Axleback on for a little while but it was
too loud for my taste. No modification needed, just longer bolts.

 

I don't have a 2.5" midpipe, but I'm running a Thermal 63mm midpipe to a stock itr axleback. The itr flange is at an angle, so it had to be cut off for a new flange to be welded on. Quieted down the exhaust tone and drone inside the car a lot!

 

i have this on my car now. 2.5 tanabe exhaust cut for the ITR axle back.
It gets raspy around 3800-4000 then goes away

 

i just changed it. it was a direct fit to my t1r midpipe. sounds really good too. i am relieved that my car aint loud anymore. i would recomend this to anyone that wants to keep it low key. def has my aproval..

 

yeah the stock muffler is awesome..

< 3in downpipe to 2.5 in exhaust and stock muffler. absolutely SILENT. but its boosted.