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MagnaFlow Straight-Through Performance MufflerMAGNAFLOW

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MagnaFlow Performance Exhaust Muffler 12245: 2.25"/2.25" Inlet/Outlet, 5x8x18" Oval, Stainless Steel, Satin Finish

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4.7 155 ratings

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$130.00

Size: 2.25 in. Inlet/Outlet

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Purchase options and add-ons

Brand	MagnaFlow
Item dimensions L x W x H	25 x 10 x 6 inches
Vehicle Service Type	Car
Configuration	Center/Center
Shape	Oval

Material
Stainless Steel

Item Weight
12.55 Pounds

About this item

SIGNATURE MAGNAFLOW SOUND - The 5" x 8" Oval body of muffler 12245 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 5" x 8" 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 - 12245’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.

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MagnaFlow Performance Exhaust Muffler 12245: 2.25"/2.25" Inlet/Outlet, 5x8x18" Oval, Stainless Steel, Satin Finish

$130.00

Get it May 9 - 10

Only 2 left in stock - order soon.

Ships from and sold by DotComParts, Inc..

EVIL ENERGY 2.25 Inch Exhaust Clamp,Butt Joint Band Clamp Sleeve Coupler Stainless Steel 2PCS

$18.99 ($9.50/Count)

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Product Description

Magnaflow Performance Exhaust 12245

Product information

Technical Details

Brand

‎MagnaFlow

Item dimensions L x W x H

‎25 x 10 x 6 inches

Vehicle Service Type

‎Car

Configuration

‎Center/Center

Shape

‎Oval

Inlet Connection Size

‎2.25 Inches

Outlet Connection Size

‎2.25 Inches

Manufacturer

‎MagnaFlow Exhaust Products

Model

‎Painted

Item Weight

‎12.55 pounds

Product Dimensions

‎25 x 10 x 6 inches

Country of Origin

‎USA

Item model number

‎12245

Exterior

‎Painted

Manufacturer Part Number

‎12245

OEM Part Number

‎12245

Additional Information

ASIN

B000XQO0ZW

Customer Reviews

4.7 155 ratings

4.7 out of 5 stars

Best Sellers Rank

#224,009 in Automotive (See Top 100 in Automotive)
#73 in Automotive Performance Exhaust Mufflers
#937 in Automotive Replacement Exhaust Mufflers

Date First Available

February 1, 2006

Warranty & Support

Amazon.com Return Policy:Amazon.com Voluntary 30-Day Return Guarantee: You can return many items you have purchased within 30 days following delivery of the item to you. Our Voluntary 30-Day Return Guarantee does not affect your legal right of withdrawal in any way. You can find out more about the exceptions and conditions here.

Product Warranty: For warranty information about this product, please click here

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MagnaFlow 12245 Exhaust Muffler

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	This Item MagnaFlow Performance Exhaust Muffler 12245: 2.25"/2.25" Inlet/Outlet, 5x8x18" Oval, Stainless Steel, Satin Finish	Recommendations MagnaFlow Performance Exhaust Muffler 12577: 2.5"/2.5" Inlet/Outlet, 5x11x22" Oval, Stainless Steel, Satin Finish	dummy MagnaFlow Performance Exhaust Muffler 11246: 2.5"/2.5" Inlet/Outlet, 4x9x18" Oval, Stainless Steel, Satin Finish	dummy EVIL ENERGY 2.25" Resonator Muffler Stainless Steel (2.25inch Inlet/Outlet, 13.8" Length)	dummy MagnaFlow Performance Exhaust Muffler 12255: 2.25"/2.25" Inlet/Outlet, 5x8x18" Oval, Stainless Steel, Satin Finish	dummy MagnaFlow Performance Exhaust Muffler 12259: 3"/3" Inlet/Outlet, 5x8x18" Oval, Stainless Steel, Satin Finish
	Try again! Details Added to Cart	Try again! Details Added to Cart	Try again! Details Added to Cart	Try again! Details Added to Cart	Try again! Details Added to Cart	Try again! Details Added to Cart
Price	$130.00	$161.00	$130.00	$42.99	$130.00	$141.00
Delivery	Get it May 9 - 10	Get it May 9 - 10	—	Get it as soon as Monday, May 13	Get it as soon as Monday, May 13	Get it as soon as Saturday, May 11
Customer Ratings	4.7155	4.519	3.925	4.6335	4.6169	4.6169
Sold By	DotComParts, Inc.	DotComParts, Inc.	PStuning	EVIL ENERGY	Amazon.com	Amazon.com
compatible vehicles	Car	Van, Car, Truck	Van, Car, Truck	Car	Van, Car, Truck	Car, Truck
inlet size	2.25	2.5	2.5	—	2.25	3
outlet size	2.25	2.5	2.5	—	2.25	3
configuration	Center/Center	Offset/Offset	Center/Center	—	Offset/Center	Offset/Center
material	Stainless Steel	Stainless Steel	Stainless Steel	Stainless Steel	Stainless Steel	Stainless Steel
weight	12.55 pounds	5 pounds	11.65 pounds	—	12.74 pounds	—
shape	Oval	Oval	Oval	Straight-through	Oval	Oval

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Customer reviews

4.7 out of 5

155 global ratings

How customer reviews and ratings work

Customers say

Customers like the quality, speed and sound quality of the muffler. They mention it's a solid exhaust note, it lasts if good long while and has a respectable, confident V8 rumble. They appreciate the throaty sound without being obnoxious.

AI-generated from the text of customer reviews

47 customers mention42 positive5 negative

Customers like the sound quality of the muffler. They mention that it sounds throaty without being obnoxious, has a nice low rumble at all times, and has mello deep tone. Some love that it's mild toned while idling.

"The Flowmaster was too harsh and droney. This one sounds good, fit well, and seems like it will last a good long while." Read more

"doesn't sound like a straight pipe, nice deep tone on a 5.3 2014-2019 deleted cats, long-tubes and resignator flows alot better" Read more

"They fit perfectly and sound awesome on my 1983 Blazer." Read more

"...There is a nice low rumble at all times, and it sounds aggressive when you lay into the gas, but it’s quiet at highway cruising speeds and during..." Read more

11 customers mention10 positive1 negative

Customers are satisfied with the quality of the muffler. They mention it's a quality product, has a solid exhaust note, and provides a respectable, confident V8 rumble. Some say it'll last a good long while and is a great muckler for older guys who no longer like the Flowmaster level.

"...This one sounds good, fit well, and seems like it will last a good long while." Read more

"Great muffler!Combined this with 18" Magnaflow resonator and a Vibrant high flow catalytic converter on my 1998 Integra...." Read more

"It's a Magnaflow so it's a quality product. Nice deep tone." Read more

"Great muffler, it pretty mellow and not obnoxiously loud. No drone inside my 2015 f150 5.0" Read more

8 customers mention8 positive0 negative

Customers like the speed of the muffler. They say it has no drone at all at highway speeds.

"...there is no mistaking the presence of a V8 but there is absolutely no drone whatsoever, the neighbors will never be bothered by it early in the..." Read more

"...is your go to muffler if you want a smooth sound with absolutely NO drone at any speed. Magnaflow has delivered on this one...." Read more

"...There is no drone at all at highway speeds.My muffler shop cut out the old muffler and welded this in its place. I am very happy with it." Read more

"This sounds amazing. Put on my 19 5.0 F150. No drone, no noise at cruising speeds. You only hear it when your on the gas and it’s sounds amazing." Read more

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Top reviews from the United States

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Jason Kaechler

Perfect for my 2011 Tahoe

Reviewed in the United States on March 3, 2024

Size: 3 in. Inlet/OutletVerified Purchase

The Flowmaster was too harsh and droney. This one sounds good, fit well, and seems like it will last a good long while.

One person found this helpful

Helpful

miko

Sounds great!

Reviewed in the United States on April 11, 2024

Size: 3 in. Inlet/OutletVerified Purchase

doesn't sound like a straight pipe, nice deep tone on a 5.3 2014-2019 deleted cats, long-tubes and resignator flows alot better

Helpful

Jim williams

They sound awesome, a nice deep rumble !

Reviewed in the United States on February 19, 2024

Size: 2.5 in. Inlet/OutletVerified Purchase

They fit perfectly and sound awesome on my 1983 Blazer.

Helpful

N. F. C..

Just what I was looking for

Reviewed in the United States on February 22, 2012

Size: 3 in. Inlet/OutletVerified Purchase

The Amazon product information is a little bit lacking. This is what would commonly be referred to as an 18" muffler as it has an 18" long case. The case is an 18x5x8 oval.

I had this muffler installed in place of stock on my GMC Yukon with 5.3L V8. I wanted something that would provide a nice, deep, healthy exhaust note that actually let me know there was a V8 lurking. However, I did not really want it to be loud as this is to be a family vehicle and we drive nearly 1,000 miles, each way, 2-3 times a year.

I am happy to report that there is no mistaking the presence of a V8 but there is absolutely no drone whatsoever, the neighbors will never be bothered by it early in the morning or late at night, and even my wife didn't have anything against it after I had it installed before she even knew I had it.

I might even consider recommending a 14" version if you don't mind a little more noise. Most pickups I hear with a modified exhaust (which is very common) are definitely louder than mine.

Your call.

UPDATE: September 2018. My review from above stands. If I was to do it again, I just might go with a slightly smaller and thus louder muffler. But without having tried, I can't say for sure. I still know there's a V8 in there when I hit the gas, but it's quite muffled. I suppose for a full size and slow SUV it's still the right call...however it this was for a pickup, not loud enough. JMO

12 people found this helpful

Helpful

Alex B.

The best 5.0 F-150 muffler for a respectable, confident V8 rumble

Reviewed in the United States on February 19, 2020

Size: 3 in. Inlet/OutletVerified Purchase

The PERFECT aftermarket muffler for the 5.0 f-150. After much research, and watching many YouTube videos of 5.0 f-150’s with this muffler, I decided to pull the trigger.

The muffler arrived faster than expected, and I had a local muffler shop weld it on my truck in 40 minutes for less than $60.00.

As for the sound, it couldn’t be a more perfect tone for me. There is a nice low rumble at all times, and it sounds aggressive when you lay into the gas, but it’s quiet at highway cruising speeds and during light acceleration. I’ve always loved the deep rumble of a V8, and this muffler lets that motor sing without pissing off my wife or being obnoxious in public.

If you’re hoping to look tough by having the loudest and most obnoxiously truck and be that guy that everyone loves to hate, this isn’t your muffler.

If you’re looking for a muffler that’s a very respectable step up from your stock muffler, and you love the low rumble of a powerful V8 without alerting the neighborhood to your presence, this muffler is absolutely perfect.

13 people found this helpful

Helpful

richard c.

A nice little rumble

Reviewed in the United States on July 18, 2023

Size: 3 in. Inlet/OutletVerified Purchase

Great sound nice rumble without affending the neighbors

2 people found this helpful

Helpful

R. Begley

NOT a direct swap into 2019 F150 V8

Reviewed in the United States on February 23, 2020

Size: 3 in. Inlet/OutletVerified Purchase

I see a lot of peeps saying they just swapped this on their 2015+ F150. Rather than have a shop do this, I handled it myself and can tell you that this is not a simple swap. It’s several inches shorter than the stock muffler and does not have the hanger in place. It’s also 3” where the F150 stock exhaust is about 2.5” (if I remember correctly) so you’ll need to measure your exhaust pipes and order reducers. It’s a bit quieter than I expected, but a little louder than stock. Not bad, but I’ll probably yank the resonator at some point.

One person found this helpful

Helpful

Robert F. Fly Jr.

Just the right sound for RAM TRX

Reviewed in the United States on December 23, 2023

Size: 3 in. Inlet/OutletVerified Purchase

I got this muffle to replace the OEM muffler for a RAM TRX. The original was just too loud on cold start and for towing. This muffler has just the right amount of burble without being obnoxiously loud.

3 people found this helpful

Helpful

Top reviews from other countries

J M

Love this muffler!

Reviewed in Canada on June 23, 2023

Size: 3 in. Inlet/OutletVerified Purchase

Installed on my 16 f150. One reducer and a small piece of 2.5" exhaust pipe - a bit of welding and voilà! Any exhaust shop would install for you fairly inexpensively. It fit perfectly, looks great, and gives just enough extra grumble with the 5 litre that you know something has been done - but not loud enough to annoy the neighbours in the wee hours of the morning!

Mark

A key part of our solution to quiet down a loud car.

Reviewed in Canada on October 25, 2020

Size: 3 in. Inlet/OutletVerified Purchase

My son just bought a 2008 Infiniti G37 that has been modified and was insanely loud. It was catless and basically straight piped 3” (single exhaust), save for two resonators of some description that did seemingly very little.
Uncertain how these would sound together, we ordered this Magnaflow 12249 muffler and a Vibrant Ultraquiet Resonator from Amazon. The resonator was installed In the middle and the muffler at the back. These are both straight-through designs. I have to say, the result was perfect. It has a good rumble, sounds great when you put your foot into it, but is not obnoxiously loud at any point. Very pleased with this product.

One person found this helpful

Geoff240ti

Quality product, great tone.

Reviewed in Canada on June 7, 2020

Size: 3 in. Inlet/OutletVerified Purchase

Always love straight through magnaflow mufflers. I stacked this infront of a flow master to quiet things down, the tone is even deeper now. Nobody needs to hear a loud 350TBI, they make less HP than a Camry.

2 people found this helpful

sarah r

Extremly Quite

Reviewed in Canada on October 20, 2018

Size: 3 in. Inlet/OutletVerified Purchase

If you like quite it's a great product found it too quite took it off awesome quality though

One person found this helpful

Tim C

Sounds great, good road manners.

Reviewed in Canada on May 11, 2021

Size: 3 in. Inlet/OutletVerified Purchase

Awesome deep sounding exhaust. Installed onto a 2008 Silverado with the 4.8. 3" in/out is a great fit for factory exhaust, little shorter then stock so you'll need a little extra pipe bent up at a shop.

One person found this helpful

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MagnaFlow Performance Exhaust Muffler 12245: 2.25"/2.25" Inlet/Outlet, 5x8x18" Oval, Stainless Steel, Satin Finish

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