Originally Posted by Zuzu
When I had my 135, I ran the N55 mids with the Y pipe resonator delete with the stock DP's and OEM rear muffler.
Believe me, it was LOUD.
I had OEM DPs and straight mids on my 135 with a borla rear and it was LOUD!!!
Now on the M I have OEM DPS mated to N55 mids (with a resonator delete via the Y pipe) and an Akra rear without the valve so its 100% open (muffler bypass) 100% of the time and I dont think its as loud as my 135 was.