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๐ Unleash the roar, own the road with MagnaFlow!
The MagnaFlow Performance Exhaust Muffler 11386 is a universal-fit, 9x4x14 inch oval muffler featuring 2.5-inch inlet/outlet connections. Designed with a straight-through perforated core and two-stage acoustic packing, it delivers the brandโs signature deep exhaust tone while improving engine performance through optimized exhaust flow. Made from durable stainless steel in the USA, it comes with a limited lifetime construction warranty for lasting reliability.






| ASIN | B000XQJZ34 |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | #62,942 in Automotive ( See Top 100 in Automotive ) #12 in Automotive Performance Exhaust Mufflers #43 in Automotive Replacement Exhaust Mufflers |
| Brand | MagnaFlow Exhaust Products |
| Brand Name | MagnaFlow Exhaust Products |
| Compatible with Vehicle Type | Car, Truck |
| Configuration | Dual/Dual |
| Customer Reviews | 4.6 out of 5 stars 508 Reviews |
| Global Trade Identification Number | 00841380000729 |
| Included Components | MagnaFlow 11386 Performance Exhaust Muffler |
| Inlet Connection Size | 2.5 inches |
| Item Dimensions | 21.13 x 9.5 x 4.5 inches |
| Item Highlight | Deep Signature Sound, 4x9x14" Oval, Stainless Steel, 2.5"/2.5" Inlet/Outlet, Dual/Dual |
| Item Type Name | Automotive Performance Exhaust Muffler |
| Item Weight | 11 pounds |
| Item dimensions L x W x H | 21.13 x 9.5 x 4.5 inches |
| Manufacturer | MagnaFlow Exhaust Products |
| Manufacturer Part Number | 11386 |
| Manufacturer Warranty Description | Limited Lifetime Construction Warranty |
| Material | Stainless Steel |
| Material Type | Stainless Steel |
| Model Number | 11386 |
| Number of Items | 1 |
| OEM Equivalent Part Number | 11386 |
| Outlet Connection Size | 2.5 inches |
| Shape | Oval |
| UPC | 841380000729 |
| Unit Count | 1 Count |
| Vehicle Service Type | Car, Truck |
D**D
High quality
Installed on a 2014 c300. Good clean, classy sound with a rear muffler delete
P**L
Sound nice
Good muffler
N**K
Drone Killer!
I bought a used 2015 V6 Camarro that came with Flowmaster mufflers on the back. It sounded more like a souped up import than a muscle car and had a terrible drone right around 1700-2300 rpm a.k.a. highway cruising and wake the neighbors high idle. My wife was exhausted after a 1 hour drive and I got tired of setting off the car alarm in the little Honda that parks behind me. I added this muffled x pipe up stream and kept the Flowmasters in place. Nothing compares to the sound of a V8 with headers, but this unit took the raspy tuba out of the high range and gave it more of a growling idle. Definitely more "American" sounding. It stepped on that drone pretty good too. The obnoxious drone range pinched down to around 1900-2050 rpm and isn't as loud when it's in it. I still set of the Honda's alarm from time to time when he parks to close, but I took the wife on a 2 hour cruise through the mountains and she was happy with the reduction in noise. The car has a nice grunt when I step on it, but is much quieter in cruise, and if I use the paddle shifters to get further away from the droning range, it goes silent. I couldn't be happier with how this pipe balanced my car between daily driver and kept a good time when I want it.
J**H
Great muffler
Works and fits correctly and sounds good
H**R
Awesome!!
Chopped out X pipe and replaced with this. Drone , rasp, and popping gone. Quieted down substantially when added to the borla axle back touring . VERY DEEP and RICH at part throttle and idle. Screams like an LS should when ya crack it. Wish audio was better on video..... Sounds amazing! 2012 Camaro SS . Heads, III BTR, LS3 valvetrain, long tubes cat-less, DOD delete, Circle D 3200, 373 gear..... smile extra large
S**T
Great but would be greater if it had worked for what I wanted to do.
Great muffler. Wonโt work with my truck because of maddeningly frustrating Ford engineering, but itโs a MagnaFlow. Asking if itโs any good is like asking if Flowmaster or Borla are good mufflers or if Fox or King makes good shocks. Duh. Of course itโs good. Would be better if it would work on my truck, but thatโs not MagnaFlowโs fault.
A**E
Fits a 99 Chevy Silverado
Itโs not too quiet but also not as loud as straight pipes yet still gives it a nice tone. The price isnโt bad overall but only thing I would complain about is that the welds could be better.. they arenโt as clean as the advertised photo.
F**Y
Got rid of drone and rasp!!!
Sound excellent on my v6 camaro. It got rid of the rasp and drone even gives it a somewhat exotic sound vibe to it.
M**Z
Muy satisfecho
Estoy muy satisfecho con la compra de esta X-pipe de Magnaflow. Realmente le da un sonido mucho mรกs agresivo al motor, pero al mismo tiempo mantiene un tono limpio y sin esas vibraciones molestas. Es una mejora totalmente recomendable si buscas un sonido deportivo sin perder calidad.
C**A
2007 BMW X5 3.0si
I straight piped my ride along with an added ecu tune with added crackles and pops. it was way too loud at very low rpm and sounded horrible being an automatic transmission car. I slipped this magnaflow back on to where my original mid silencer was. Perfect fit! The sound now is perfect. I love the deep sound. Reminds me of my old cat back magnaflow VW VR6 I had back in the day. I'm now not worried about driving in my neighborhood or watching out for police anymore Only thing I don't like now is that my car doesn't make loud gun shot sounds any more from my tune ๐ just some nice rumbling.
A**R
Beautiful
Great sound, install these in your B8/B8.5 S4
J**N
As promised
Happy with the product as promised.
S**N
Get a lot of comments on how great it sounds on my Lincoln LS V8
Fricken sounds beast !!! Had a muffler shop run me a custom install using this muffler. Get a lot of comments on how great it sounds on my Lincoln LS V8. Really sounds awesome when you get on it. Good quality product, very pleased with purchase.
Trustpilot
2 months ago
2 days ago