Magnaflow 3.5" in/out oval mufflers, who's running one?
Thread Starter
TECH Senior Member
iTrader: (35)
Joined: Nov 2007
Posts: 9,705
Likes: 12
From: C. V., Kalifornia
Magnaflow 3.5" in/out oval mufflers, who's running one? So now I'm now starting to contemplate going with a Mufflex 3.5" cat back with either a Magnaflow #14151 w/14" case or preferably a 12909 w/22" case, I would probably also continue to use the Borla XR1 in the I-pipe.
Let me hear you thoughts and opinions, especially if you have/had either one of these muffler, or have first had any experiences with some one that has/had them.
Thanks
Let me hear you thoughts and opinions, especially if you have/had either one of these muffler, or have first had any experiences with some one that has/had them.
Thanks
Last edited by 99Bluz28; Oct 22, 2011 at 05:59 PM.
Thread Starter
TECH Senior Member
iTrader: (35)
Joined: Nov 2007
Posts: 9,705
Likes: 12
From: C. V., Kalifornia
Yeah I did come across these, and if I go this route I'll most likely leave the XR1 in the I-pipe, unless I go with the 22" case.
https://ls1tech.com/forums/generatio...aust-pics.html
https://ls1tech.com/forums/generatio...w-muffler.html
https://ls1tech.com/forums/generatio...aust-pics.html
https://ls1tech.com/forums/generatio...w-muffler.html
I had a custom 3.5'' exhaust with the Magnaflow 3.5'' Race series stainless muffler on my 98 Z28. The muffler had a nice deep but not too loud sound to it. I really liked it because it wasn't loud/obnoxious.
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
I have a 3.5 catback with the magnaflow race muffler(14inch case) and single hidden tip. I can try to get a video up tomorrow. I also have a ory pipe with the flowmaster merge. I like loud exhaust but with this setup i wish i could quite it down some. Im looking to get a muffler to put in the i-pipe to tame it down some. It sounds way better than the hooker catback i had on the car, much deeper sound.
Thread Starter
TECH Senior Member
iTrader: (35)
Joined: Nov 2007
Posts: 9,705
Likes: 12
From: C. V., Kalifornia
Okay, I got the Muffler 3.5" cat-back w/magnaflow and hide-away tip(pt#98352cm) on order today.
It should be fairly quiet combined with the Borla XR1 in the I-pipe.
It should be fairly quiet combined with the Borla XR1 in the I-pipe.
I have a 3.5 catback with the magnaflow race muffler(14inch case) and single hidden tip. I can try to get a video up tomorrow. I also have a ory pipe with the flowmaster merge. I like loud exhaust but with this setup i wish i could quite it down some. Im looking to get a muffler to put in the i-pipe to tame it down some. It sounds way better than the hooker catback i had on the car, much deeper sound.
http://s159.photobucket.com/albums/t...t=MOV00762.mp4
http://s159.photobucket.com/albums/t...t=MOV00765.mp4
http://s159.photobucket.com/albums/t...t=MOV00758.mp4
TECH Junkie
Joined: Dec 2005
Posts: 3,092
Likes: 11
I am running the 12909 on my 1989 Trans Am. It is relatively quiet until you go pedal to the metal and then it has a nice throaty roar to it. I really like it. Driving around town there is no problem listening to the radio or having a conversation with a passenger. Also no drone.
Thread Starter
TECH Senior Member
iTrader: (35)
Joined: Nov 2007
Posts: 9,705
Likes: 12
From: C. V., Kalifornia
BTW, Mufflex told me that the Magnaflow #12909 would be to long.
TECH Junkie
Joined: Dec 2005
Posts: 3,092
Likes: 11
No it did not come with it. At that time I had a choice of either a Flowmaster or a Spintech. I choose the Spintech. I did not like it and it was very heavy. I bought the Aerochamber and did not like that. Later on Magnaflow came out with the 12909 muffler and it was what I was looking for in a muffler. I think the cat-back portion of our cars are the same. It fits fine and maybe some trimming was needed but not much. In this case Mufflex is wrong.
Attached is the best picture I have of it installed.
Attached is the best picture I have of it installed.
Thread Starter
TECH Senior Member
iTrader: (35)
Joined: Nov 2007
Posts: 9,705
Likes: 12
From: C. V., Kalifornia
No it did not come with it. At that time I had a choice of either a Flowmaster or a Spintech. I choose the Spintech. I did not like it and it was very heavy. I bought the Aerochamber and did not like that. Later on Magnaflow came out with the 12909 muffler and it was what I was looking for in a muffler. I think the cat-back portion of our cars are the same. It fits fine and maybe some trimming was needed but not much. In this case Mufflex is wrong.
Attached is the best picture I have of it installed.
Attached is the best picture I have of it installed.
BTW, which end did you use as the inlet, offset or centered end?