Interested in this. How did it sound inside while cruising on the highway? I'd like to avoid much drone or CIS sound. It seems lots of guys run the 12258. I've got a 2010, so I'm pretty sure this is a simple swap, what have you guys paid for the simple swap?
FS: 18" Magnaflow Muffler #12258
I had a Borla ProXS welded on this morning so I'm selling my old 18" magnaflow part 12258
Perfect for 07+ stock pipes. Dual 2.25" Single 2.5". It was on my truck for about 15k miles and there's nothing wrong with it. It was too loud for me after headers even though everyone else said it sounded fu<kin' mean.
$60 shipped to the 48. I'm in Los Angeles, CA.
Perfect for 07+ stock pipes. Dual 2.25" Single 2.5". It was on my truck for about 15k miles and there's nothing wrong with it. It was too loud for me after headers even though everyone else said it sounded fu<kin' mean.
$60 shipped to the 48. I'm in Los Angeles, CA.
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Just a swap should cost around $100, if it doesn't then leave.
How do you like the borla ostaF? I totally started the proxs popularity!
How do you like the borla ostaF? I totally started the proxs popularity!
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5,523 Posts
I love my dual Pro XS Borlas's!! I still need to make a video for ya'll.Just a swap should cost around $100, if it doesn't then leave.
How do you like the borla ostaF? I totally started the proxs popularity!
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2,641 Posts
Cruising at 70+ mph sounds normal. Drone is between 1600-1900 rpm, it's gone @ 2000 rpm. You'll hear CIS at WOT. This muffler is a little aggressive, it falls between the mild 22" and wild 14".
Should be between $50-100 for the swap... don't pay more than $100.
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I REALLY like it so far... exactly what I was looking for after getting headers.Just a swap should cost around $100, if it doesn't then leave.
How do you like the borla ostaF? I totally started the proxs popularity!
I was too slow to snatch the one you sold :crying:
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439 Posts
what about fitment on an 04 cc?
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Won't fit on 2004-2006 stock pipes since they're single in/single out.
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They really sound good. My first one was actually replaced by borla, it got about a quarter sized hole in it and had wadding falling out... They have good warranties haha. Mine was up for sale for like 2 months! Haha
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could i run it backwards and do single in dual out????
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Yes you can. They are reversible
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Yes, that'll work.
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Summit diddnt even ask any questions. I believe its a "million mile warranty", at least borlas website says that haha
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439 Posts
does it change the sound? will it bolt right up if i run it single in dual out? on a 04 cc 2wd?
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Yes it will, but since its a centered inlet, a shop will have to make a pipe so the muffler fits inside the frame rails. It will sound more aggressive and a bit louder, but nothing extreme
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It's louder than stock, check the clip up top. Dual outs will need to be fabbed or dump them.
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Google "So I finally did my exhaust... BORLA!". Has all my pics and a video of stock piping, SI/DO dumped
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Yes it will change the sound. A tad louder at startup, not too much louder cruising and definitely can be heard WOT. For you, it might be cheaper to just order the 12256. I ordered mine from Magnaflow Performance | Discount Performance Auto Parts | Performance Exhaust Systems | Flowmaster Performance Mufflers several years ago. I only paid $60, but I think the price has gone up.
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