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Borla or Magnaflow

2665 Views 18 Replies 7 Participants Last post by  gtman55
so im deciding on which muffler to get. im stuck between the magnaflow 12865 or the Borla S-Type part # 40842S. being that the borla is only about $100 more than the magnaflow, money isnt really my main concern. my main concern is the sound. which would sound better on my sx koup?

also, i noticed that some mufflers have a 2.5" inlet/outlet and some have 2.25" inlet/outlets and that both were used by some of you on your koups. do they make a differnce? or can i get either outlet/inlet size, and the muffler shop will be able to install either one with ease?
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I just had a dynomax super turbo mini installed and it sounds great. Idk about the magnaflow or the borla (i've heard chambered mufflers aren't good for 4 cyl's). Anyway, I used a 2" in, 2" out, center/offset. Hope that helps.
Maybe this thread might help in your decision making ?

http://www.forteforums.com/forums/performance-modifications/1316-clip-magnaflow-sound-mfury.html

Good luck and keep us posted.
I just had a dynomax super turbo mini installed and it sounds great. Idk about the magnaflow or the borla (i've heard chambered mufflers aren't good for 4 cyl's). Anyway, I used a 2" in, 2" out, center/offset. Hope that helps.
the 2" inlet and outlet wasnt a problem when you had it welded right? like it wasnt too short or something. sorry if i seem slow, im not too sure about the reason behind different sizes on each end of the muffler.

how much did that muffler cost you?
Maybe this thread might help in your decision making ?

http://www.forteforums.com/forums/performance-modifications/1316-clip-magnaflow-sound-mfury.html

Good luck and keep us posted.

ive seen this video many times, and its the main reason why i'm leaning toward magnaflow! ive seen aidens videos and it sounds great, but i dont plan on putting a cai in anytime soon, so i just want a stand alone muffler that sounds good. thanks for your input!
i have the magnaflow without the cai. sounds great, has kind of an aggressive rumble going on.
the 2" inlet and outlet wasnt a problem when you had it welded right? like it wasnt too short or something. sorry if i seem slow, im not too sure about the reason behind different sizes on each end of the muffler.

how much did that muffler cost you?
You're correct. I had the muffler welded on by a local shop. The one I got was 18.5" end-to end (14" shell). No problem with the questions. I was nervous too, but did a bit of research, myself.

I bought the muffler from a local speed shop and paid about $39. The install was only $30.

As for the muffler- it's a little loud, but needs to break in some. It's a very low, mellow tone; not raspy at all and at idle, I can barely hear it rumble.
i have the magnaflow without the cai. sounds great, has kind of an aggressive rumble going on.

and the longer you have it, the badder it sounds :p
You're correct. I had the muffler welded on by a local shop. The one I got was 18.5" end-to end (14" shell). No problem with the questions. I was nervous too, but did a bit of research, myself.

I bought the muffler from a local speed shop and paid about $39. The install was only $30.

As for the muffler- it's a little loud, but needs to break in some. It's a very low, mellow tone; not raspy at all and at idle, I can barely hear it rumble.

thanks alot for this info, i appreciate it.


K.I.A..you have the magnaflow 12865 right? hows your mpg with it?
thanks alot for this info, i appreciate it.


K.I.A..you have the magnaflow 12865 right? hows your mpg with it?

lol cant go by me, i drive like a maniac! but i think i average the same as i did before i put it on. so about...22 mpg!! lol theres alot of honda civics over here so ya know...gotta show em whos king!
lol cant go by me, i drive like a maniac! but i think i average the same as i did before i put it on. so about...22 mpg!! lol theres alot of honda civics over here so ya know...gotta show em whos king!

lol i hear ya! i live out in long island and the ricers are everywhere! i cant wait to get the exhaust on and show em whats what lol
haha i was racing some old a$$ maxima on the LIE last week, it was pretty funny when i looked in my rearview and watched his ghetto taped on aftermarket front bumber fall off and was dragging under the wheel! bumper looked like it wasnt even made for that car! lol
hahaha they think their cars are the best thing out on the road..it looks like they bought their body kits and lights from toys r us! lol...do you ever go to the meets(races) out in farmingdale?
You realize, you guys are ricers too... racing on public roads = ricer.

used to street race my mustang, and last time i checked that thing was made in america!

and i never been to the meets in LI. but my father used to do closed road racing in farmingdale. i think its farmingdale lol but that was with his 65 mustang...back in 65 lol we used to have car shows over here but the douchers with the harleys ruined that! but yea, if theres ever a meet in LI, let me know, ill be down
no doubt man..theres so few of us koup drivers around our area, so it would be great for us to meet up soon!
yea, i think im the only one in SI that owns a koup lol
here's my magnaflow... idk if it helps. usually videos dont do it justice tho :)
YouTube - Aidensgrand's Channel
I had a Borla ProXS in my Elantra GT and I loved it. While it's not as shiny as the Magnaflow it definitely has a deep, sexy sound.

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