do any of your guys know if the mugen twin loop muffler would fit on a stock b-pipe ? i dunno if theres a difference but i have the jdm itr b-pipe i know its a 2.25" but i dunno how big the US b-pipe is .

 

i doubt it

 

No.

Mugen midpipe is 2.5

 

thanks guys..

 

The usdm mid-pipe isnt 2.5". It actually has a stock 2" collector into the cat and through the first resonator, then increases to 2.36" through the rest of the piping. I dont think the muffer can bolt on to the stock b-pipe... call kingmotorsports to confirm this.

 

you could always have it welded. kind of pointless putting it on stock exhaust though imo.