Speed Engineering Headers paired with catted Y-Pipe?
Thread Starter
TECH Regular
Joined: Sep 2010
Posts: 446
Likes: 1
From: Kansas City, MO
Speed Engineering Headers paired with catted Y-Pipe? Hey guys, I tried to do some quick searching and came up empty. Here's my scenario. My car is mostly stock except for free mods, LS6 intake/injectors, MTI lid and GMMG catback. I've read (and heard) that headers and an ORY with a GMMG creates a terrible drone and is real raspy. For people who want a classy sound, and drone/rasp reduced. I've read that a catted Y-pipe is recommended.
Well, I love my GMMG and I refuse to have my car sounding like a dump truck. My question is that I'm heavily considering Speed Engineering headers, specifically the 1 7/8" and I'd like to run a catted Y-Pipe. Has anyone successfully paired up a catted Y-Pipe to their headers? If you have, what brand was it? Has anyone just built their own catted Y-Pipe? If so, what cat/cats did you use?
I realize that its uncommon for people to run cats on a car with headers unless they are trying to pass emissions. I live in Kansas so I don't have to worry about emissions, but I am worried about rasp and drone and would like to have a catted Y-pipe to help eliminate some of that. I realize that this will not COMPLETELY eliminate those two items but I'm not shooting for that. I would just like something to break up the exhaust before it exits.
If this topic has been brought up before, please shoot me after providing a link. I'd greatly appreciate it!
Thanks in advance,
Matt
Well, I love my GMMG and I refuse to have my car sounding like a dump truck. My question is that I'm heavily considering Speed Engineering headers, specifically the 1 7/8" and I'd like to run a catted Y-Pipe. Has anyone successfully paired up a catted Y-Pipe to their headers? If you have, what brand was it? Has anyone just built their own catted Y-Pipe? If so, what cat/cats did you use?
I realize that its uncommon for people to run cats on a car with headers unless they are trying to pass emissions. I live in Kansas so I don't have to worry about emissions, but I am worried about rasp and drone and would like to have a catted Y-pipe to help eliminate some of that. I realize that this will not COMPLETELY eliminate those two items but I'm not shooting for that. I would just like something to break up the exhaust before it exits.
If this topic has been brought up before, please shoot me after providing a link. I'd greatly appreciate it!
Thanks in advance,
Matt
Launching!
Joined: Aug 2011
Posts: 216
Likes: 0
From: Kennesaw, GA
I have true duals so I can't comment on the Y-pipe question, but my setup is catted.
It has zero drone with Moroso spiral flow bullets.
If you can, go with cats. It really refines the sound and eliminates drone/rasp.
It has zero drone with Moroso spiral flow bullets.
If you can, go with cats. It really refines the sound and eliminates drone/rasp.
11 Second Club
Joined: Aug 2012
Posts: 730
Likes: 0
From: Middletown, DE
GMMG is awesome sounding. I've heard it on H/C/I ORY setups and that thing rips your ears off. I would try throwing a bullet muffler in the i pipe or something (like magnaflow or dynomax) to really cut down on the rasp.
Keep the cats off you'll end up taking them off later anyway as you mod the car. Like I said though GMMG is a great setup, don't let it stop you from opening that system up
Keep the cats off you'll end up taking them off later anyway as you mod the car. Like I said though GMMG is a great setup, don't let it stop you from opening that system up
