Latest mod... Secondary Cat delete
Thread Starter
Senior Member
Joined: Apr 2007
Posts: 418
Likes: 0
From: Toronto/Mississauga/Moscow
2005 Mercedes G55 AMG
Latest mod... Secondary Cat delete
Hey guys, as some of you know, I had my resonator removed when I first bought the car. I always wanted a bit more sound as people around me kept getting louder and louder. So now, I have removed my secondary cats and I'm pretty happy!
Here is a cold start video:
http://www.youtube.com/user/Blackmer.../0/eqNqpu1ACa0
I'll get some WOT vids in a bit, as I am a bit pressed for time these days.
Here is a cold start video:
http://www.youtube.com/user/Blackmer.../0/eqNqpu1ACa0
I'll get some WOT vids in a bit, as I am a bit pressed for time these days.
Super Member
Joined: Nov 2007
Posts: 810
Likes: 0
From: SoCal
2004 E55
did you do straight pipes or x/h pipe? I went through this exact same process (first removed reso, not much diff, then removed sec cats and put in straight pipes). With the straight pipes all the way from the primaries to the mufflers, a butt dyno showed slight loss of low end gitty-up. Sound was much improved, but seemed a bit muffled, with a slight pulsing feel/sound at higher RPMs.
I finally just put an x-pipe where the reso used to be. Its def a little quieter than it was with the straight pipes, but in the end, its still louder than stock while keeping that smoothed out/refined sound. I llike it.
I finally just put an x-pipe where the reso used to be. Its def a little quieter than it was with the straight pipes, but in the end, its still louder than stock while keeping that smoothed out/refined sound. I llike it.
Super Member
Joined: Apr 2010
Posts: 781
Likes: 0
From: Bay Area, CA
E55 AMG, 72' Toyota Carina, 63' Ford F100, 72' Mercedes 250c, 15' Harley Davidson Softail
maybe it's because cold start but it sounds a little raspy? Im on staight pipes for primaries back also and love it!
