MagnaFlow Performance Exhaust Muffler 11378: 2.25"/2.25" Inlet/Outlet, 4x9x11" Oval, Stainless Steel, Satin Finish

Compare price from $144.40 ~ $278.68

Compare Buying Options

Sort by Lowest Price	Item price	Delivery
Amazon.com MagnaFlow Performance Exhaust Muffler 11378: 2.25"/2.25" Inlet/Outlet, 4x9x11" Oval, Stainless Steel, Satin Finish	$144.40	Delivery date & cost shown at checkout

AutoTalent MagnaFlow Muffler Mag SS 11X4X9 2.25 D/D	$148.00	Delivery date & cost shown at checkout

Modern Day Muffler MagnaFlow 11378 Universal Performance Muffler Mag SS 11X4X9 2.25 D/D	$152.00	Delivery date & cost shown at checkout

AutoAccessoriesGarage.com Magnaflow Satin Muffler 11378	$152.00	Delivery date & cost shown at checkout

Redline360 Magnaflow Muffler (2.25" - 4" x 9" Oval - 11" Body - 17" Overall - Dual / Dual) 11378	$152.00	Delivery date & cost shown at checkout

CARiD.com MagnaFlow 11378 Stainless Steel Oval Bi-Direction Satin Gray Exhaust Muffler (2.25" Dual ID, 2.25" Dual OD, 11" Length)	$152.00	Delivery date & cost shown at checkout

Mod-In-Japan MagnaFlow Muffler Mag SS 11X4X9 2.25 D/D - 11378	$152.00	Delivery date & cost shown at checkout

Toys For Trucks MagnaFlow Exhaust Products 11378 Universal Muffler	$152.00	Delivery date & cost shown at checkout

Underdog Motorsports MagnaFlow Muffler Mag SS 11X4X9 2.25 D/D	$152.00	Delivery date & cost shown at checkout

5 Star Tuning MagnaFlow Muffler Mag SS 11X4X9 2.25 D/D	$152.00	Delivery date & cost shown at checkout

Summit Racing 2.25 Inch MagnaFlow Performance Mufflers - 409 Stainless Steel \| MagnaFlow 11378	$152.00	Delivery date & cost shown at checkout

CA Auto Parts 4 X 9 in. Oval Straight-Through Performance Exhaust Muffler from CA Auto Parts	$152.00	Delivery date & cost shown at checkout

JEGS High Performance Magnaflow 4" x 9" Oval Muffler Dual In/Dual Out: 2.25" Body Length: 11" Overall Length: 17" Core Size: 2.5" Satin Finish	$152.00	Delivery date & cost shown at checkout

Vivid Racing MagnaFlow 11378 4 x 9in Oval Straight-Through Performance Exhaust Muffler 11378	$152.00	Delivery date & cost shown at checkout

Emnotek MagnaFlow Muffler Mag SS 11X4X9 2.25 D/D	$152.00	Delivery date & cost shown at checkout

Down East Offroad Magnaflow Muffler Mag Ss 11X4X9 2.25 D/D (241248)	$152.00	Delivery date & cost shown at checkout

Hottexhaust Magnaflow 11378 \| Satin Stainless Muffler \| 4"x9" Oval Body, 2.25" Dual/Dual, 11" Body Length	$152.00	Delivery date & cost shown at checkout

throtl Performance Parts Magnaflow Muffler Mag SS 11X4X9 2.25 D/D - 11378 Mufflers -by throtl Performance	$152.00	Delivery date & cost shown at checkout

Speedway Motors MagnaFlow 11378 4 Inch x 9 Inch Oval Dual/Dual Stainless Muffler	$152.00	Delivery date & cost shown at checkout

EuroSport Tuning Magnaflow SS Muffler \| 11378	$152.00	Delivery date & cost shown at checkout

Parts Via Magnaflow Performance 11378 Stainless Steel Exhaust Muffler	$152.00	Delivery date & cost shown at checkout

eBay MagnaFlow Muffler Mag SS 11X4X9 2.25 D/D \| 11378	$152.00	Delivery date & cost shown at checkout

Real Street Performance Magnaflow Muffler Dual 4" X 9" Oval Straight-Through 17" Overall 2.25" Inlet Outlet 11378	$152.00	Delivery date & cost shown at checkout

CarParts.com Magnaflow Muffler, Natural, Performance Series	$152.00	Delivery date & cost shown at checkout

MartiniWorks MagnaFlow Muffler Mag SS 11X4X9 2.25 D/D - Universal 11378	$152.00	Delivery date & cost shown at checkout

Pro Performance MagnaFlow Muffler Mag SS 11X4X9 2.25 D/D	$152.00	Delivery date & cost shown at checkout

Installations Unlimited MagnaFlow Muffler Mag SS 11X4X9 2.25 D/D	$152.95	Delivery date & cost shown at checkout

JeepHut.com MagnaFlow Muffler Mag SS 11X4X9 2.25 D/D	$152.99	Delivery date & cost shown at checkout

ID Speed Shop MagnaFlow Muffler Mag SS 11X4X9 2.25 D/D - 11378	$152.99	Delivery date & cost shown at checkout

Jeep and Truck Parts MagnaFlow Muffler Mag SS 11X4X9 2.25 D/D	$153.99	Delivery date & cost shown at checkout

Midwest Aftermarket MagnaFlow Exhaust Products MagnaFlow 4 X 9in. Oval Straight-Through Performance Exhaust Muffler \| 11378	$155.22	Delivery date & cost shown at checkout

JCERacing MagnaFlow Muffler Mag SS 11X4X9 2.25 D/D - 11378	$166.99	Delivery date & cost shown at checkout

Fidanza Performance MagnaFlow Muffler Mag SS 11X4X9 2.25 D/D - 11378	$211.28	Delivery date & cost shown at checkout

Lethal Performance Magnaflow Universal Performance Muffler - 2.25/2.25 - 11385	$211.28	Delivery date & cost shown at checkout

Lethal Performance Magnaflow Universal Performance Muffler - 2.25/2.25 - 11378	$211.28	Delivery date & cost shown at checkout

LMPerformance Magnaflow Muffler Mag SS 11X4X9 2.25 D/D #11378	$211.28	Delivery date & cost shown at checkout

Offroad Trading Company MagnaFlow Muffler Mag SS 11X4X9 2.25 D/D	$212.66	Delivery date & cost shown at checkout

FinditParts.com Magnaflow Exhaust Product 11378 - Straight Through Performance Muffler; 2.25in. Dual/Dual; 4x11x9 Body	$278.68	Delivery date & cost shown at checkout

144.40
Amazon.com
MagnaFlow Performance Exhaust Muffler 11378: 2.25"/2.25" Inlet/Outlet, 4x9x11" Oval, Stainless Steel, Satin Finish
Delivery date & cost shown at checkout
148.00
AutoTalent
MagnaFlow Muffler Mag SS 11X4X9 2.25 D/D
Delivery date & cost shown at checkout
152.00
Modern Day Muffler
MagnaFlow 11378 Universal Performance Muffler Mag SS 11X4X9 2.25 D/D
Delivery date & cost shown at checkout
152.00
AutoAccessoriesGarage.com
Magnaflow Satin Muffler 11378
Delivery date & cost shown at checkout
152.00
Redline360
Magnaflow Muffler (2.25" - 4" x 9" Oval - 11" Body - 17" Overall - Dual / Dual) 11378
Delivery date & cost shown at checkout
152.00
CARiD.com
MagnaFlow 11378 Stainless Steel Oval Bi-Direction Satin Gray Exhaust Muffler (2.25" Dual ID, 2.25" Dual OD, 11" Length)
Delivery date & cost shown at checkout
152.00
Mod-In-Japan
MagnaFlow Muffler Mag SS 11X4X9 2.25 D/D - 11378
Delivery date & cost shown at checkout
152.00
Toys For Trucks
MagnaFlow Exhaust Products 11378 Universal Muffler
Delivery date & cost shown at checkout
152.00
Underdog Motorsports
MagnaFlow Muffler Mag SS 11X4X9 2.25 D/D
Delivery date & cost shown at checkout
152.00
5 Star Tuning
MagnaFlow Muffler Mag SS 11X4X9 2.25 D/D
Delivery date & cost shown at checkout
152.00
Summit Racing
2.25 Inch MagnaFlow Performance Mufflers - 409 Stainless Steel | MagnaFlow 11378
Delivery date & cost shown at checkout
152.00
CA Auto Parts
4 X 9 in. Oval Straight-Through Performance Exhaust Muffler from CA Auto Parts
Delivery date & cost shown at checkout
152.00
JEGS High Performance
Magnaflow 4" x 9" Oval Muffler Dual In/Dual Out: 2.25" Body Length: 11" Overall Length: 17" Core Size: 2.5" Satin Finish
Delivery date & cost shown at checkout
152.00
Vivid Racing
MagnaFlow 11378 4 x 9in Oval Straight-Through Performance Exhaust Muffler 11378
Delivery date & cost shown at checkout
152.00
Emnotek
MagnaFlow Muffler Mag SS 11X4X9 2.25 D/D
Delivery date & cost shown at checkout
152.00
Down East Offroad
Magnaflow Muffler Mag Ss 11X4X9 2.25 D/D (241248)
Delivery date & cost shown at checkout
152.00
Hottexhaust
Magnaflow 11378 | Satin Stainless Muffler | 4"x9" Oval Body, 2.25" Dual/Dual, 11" Body Length
Delivery date & cost shown at checkout
152.00
throtl Performance Parts
Magnaflow Muffler Mag SS 11X4X9 2.25 D/D - 11378 Mufflers -by throtl Performance
Delivery date & cost shown at checkout
152.00
Speedway Motors
MagnaFlow 11378 4 Inch x 9 Inch Oval Dual/Dual Stainless Muffler
Delivery date & cost shown at checkout
152.00
EuroSport Tuning
Magnaflow SS Muffler | 11378
Delivery date & cost shown at checkout
152.00
Parts Via
Magnaflow Performance 11378 Stainless Steel Exhaust Muffler
Delivery date & cost shown at checkout
152.00
eBay
MagnaFlow Muffler Mag SS 11X4X9 2.25 D/D | 11378
Delivery date & cost shown at checkout
152.00
Real Street Performance
Magnaflow Muffler Dual 4" X 9" Oval Straight-Through 17" Overall 2.25" Inlet Outlet 11378
Delivery date & cost shown at checkout
152.00
CarParts.com
Magnaflow Muffler, Natural, Performance Series
Delivery date & cost shown at checkout
152.00
MartiniWorks
MagnaFlow Muffler Mag SS 11X4X9 2.25 D/D - Universal 11378
Delivery date & cost shown at checkout
152.00
Pro Performance
MagnaFlow Muffler Mag SS 11X4X9 2.25 D/D
Delivery date & cost shown at checkout
152.95
Installations Unlimited
MagnaFlow Muffler Mag SS 11X4X9 2.25 D/D
Delivery date & cost shown at checkout
152.99
JeepHut.com
MagnaFlow Muffler Mag SS 11X4X9 2.25 D/D
Delivery date & cost shown at checkout
152.99
ID Speed Shop
MagnaFlow Muffler Mag SS 11X4X9 2.25 D/D - 11378
Delivery date & cost shown at checkout
153.99
Jeep and Truck Parts
MagnaFlow Muffler Mag SS 11X4X9 2.25 D/D
Delivery date & cost shown at checkout
155.22
Midwest Aftermarket
MagnaFlow Exhaust Products MagnaFlow 4 X 9in. Oval Straight-Through Performance Exhaust Muffler | 11378
Delivery date & cost shown at checkout
166.99
JCERacing
MagnaFlow Muffler Mag SS 11X4X9 2.25 D/D - 11378
Delivery date & cost shown at checkout
211.28
Fidanza Performance
MagnaFlow Muffler Mag SS 11X4X9 2.25 D/D - 11378
Delivery date & cost shown at checkout
211.28
Lethal Performance
Magnaflow Universal Performance Muffler - 2.25/2.25 - 11385
Delivery date & cost shown at checkout
211.28
Lethal Performance
Magnaflow Universal Performance Muffler - 2.25/2.25 - 11378
Delivery date & cost shown at checkout
211.28
LMPerformance
Magnaflow Muffler Mag SS 11X4X9 2.25 D/D #11378
Delivery date & cost shown at checkout
212.66
Offroad Trading Company
MagnaFlow Muffler Mag SS 11X4X9 2.25 D/D
Delivery date & cost shown at checkout
278.68
FinditParts.com
Magnaflow Exhaust Product 11378 - Straight Through Performance Muffler; 2.25in. Dual/Dual; 4x11x9 Body
Delivery date & cost shown at checkout

Product Details

SIGNATURE MAGNAFLOW SOUND - The 4" x 9" Oval body of muffler 11378 is engineered to deliver the deep, resonating sound that MagnaFlow mufflers are famous for.

DYNO-PROVEN PERFORMANCE - Extensive dyno testing is used to ensure that this 4" x 9" Oval muffler increases engine power and performance by improving the flow dynamics and evacuation of exhaust gases.

OPTIMAL ARCHITECTURE & CONSTRUCTION - The internal architecture of this muffler features a straight-through perforated core with two-stage acoustic packing which maintains the velocity of exhaust flow while generating a smooth, deep exhaust tone. Proudly made in the USA.

UNIVERSAL FITMENT - 11378’s universal design enables custom muffler placement and orientation to meet the particular spacing and mechanical requirements of your vehicle. Professional installation is highly recommended.

LIMITED LIFETIME CONSTRUCTION WARRANTY - Performance that lasts. Enjoy worry-free ownership knowing that you're backed by MagnaFlow’s limited lifetime construction warranty.

Best Review

Customers find the muffler's sound quality excellent, noting it sounds great at idle. They also praise its construction, describing it as superb.AI Generated from the text of customer reviews

Popular Products

2-Pack 10FT USB Power Extension Cable for Wyze Cam,WyzeCam Pan,YI Home Camera,Nest-Cam Indoor,Oculus Go,Netvue,KasaCam,Furbo Dog,Blink,Flat USB to Micro USB Charging Charger Cord for Wyze-Cam v3 v2

$8.99

Compare at 3 stores

HONGDAK Action Camera Accessories Kit for GoPro Hero 13 12 11 10 9 Black, Waterproof Housing+Silicone Case+ Adjustable Arm+Head Chest Wrist Strap+Bike Mount+Suction Cup+Floating Grip Bundle Set 63in1

$31.99

Compare at 3 stores

JJC E-Mount Body Cap & Rear Lens Cap Cover Kit for Sony A7 A7II A7III A7IV A7S II III A7R II III IV A7RV A7CR A7C II A6700 A6600 A6400 A6300 A6100 A6000 A1 II ZV-E10 II ZV-E1 & More Sony Camera & Lens

$5.99

Compare at 2 stores

Altura Photo 58MM Tulip Flower Lens Hood for Canon EOS 77D 80D 90D Rebel T8i T7 T7i T6i T6s T6 SL2 SL3 DSLR Cameras with Canon EF-S 18-55mm f/3.5-5.6 is Lens and Select Nikon Lenses

$9.99

Compare at 4 stores

Micro USB Cable,2Pack Extra Long Android Charger Cable 10Ft 6Ft, EnduringFast Phone Charger Cord Android USB Charging Cable Fit for Samsung Galaxy S7 S6 S7 Edge S5,Note 5 4,LG G4,HTC,PS4,Camera,MP3

$6.99

Compare at 9 stores

MagnaFlow Performance Exhaust Muffler 11378: 2.25"/2.25" Inlet/Outlet, 4x9x11" Oval, Stainless Steel, Satin Finish

Compare Buying Options