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Magnaflow 12138 Straight-Through Performance Muffler 2.25in Dual Inlet/Outlet 5x14x8

Manufacturer

Picture for manufacturer Magnaflow

Part Number

12138
6 reviews
Sale Price

$142.00

Estimated ship date Thursday, November 26

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Product Details

The Magnaflow 12138 is a straight-through performance muffler designed to enhance exhaust flow and deliver a deep, aggressive tone. This universal-fit muffler features a center inlet/dual outlet configuration with 2.25-inch diameter connections, making it ideal for custom exhaust applications where you need to split exhaust flow from a single pipe to dual exit pipes.

Key Features:

  • Straight-through perforated core design for maximum flow and reduced backpressure
  • Stainless steel construction for superior corrosion resistance and durability
  • Compact oval body dimensions: 5 inches high x 14 inches long x 8 inches wide
  • Single 2.25-inch center inlet with dual 2.25-inch outlets
  • Acoustical absorption material dampens unwanted frequencies while maintaining performance sound
  • Universal design works with a wide range of vehicles and custom applications
  • TIG-welded construction ensures leak-free performance

Magnaflow's straight-through design allows exhaust gases to flow with minimal restriction, improving throttle response and potentially increasing horsepower and torque. The oval body configuration provides flexible installation options in tight spaces where a round muffler might not fit. This muffler delivers the classic Magnaflow performance exhaust tone—aggressive under acceleration but refined at cruising speeds.

Products specifications

Inlet Diameter

2.25

Outlet Diameter

2.25

Series

Straight-Through

Body Finish

Satin

Subtitle

Single/Dual

Body Material

Stainless Steel

Inlet Quantity

1

Overall Length

20

Outlet Quantity

2

Body Width

8

Body Height

5

Body Length

14

Shape

Oval

Outlet Type

Dual

Inlet Type

Center

Exhaust Tip Quantity

0

Muffler Type

Straight-Through

Core Size

2.5

Reversible

Yes

Outlet Inside Diameter

2.25

Inlet Inside Diameter

2.25

Hanger Included

No

I was very skeptical of ordering from Autoplicity, as I've never heard of them. They had everything I needed in stock and shipped very quickly, and for a much better price than my normal suppliers at Jegs and Summit Racing. I would recommend them to everyone...............Jeff

Very friendly customer service! They also shipped my radiator out very quickly. I will definetly be ordering from autoplicity again!

I needed a few small XRP fittings for our NHRA Top Alcohol Dragster, I had called XRP and even a "pro racer discount" the price was ridiculous; couple this with their ridiculous shipping/handling charge I had to go elsewhere. I typed in the XRP part number into Google and found Autoplicity, twice as many pcs. as I was planning on ordering and with shipping it was cheaper than one fitting from XRP direct. I will be checking Autoplicity anytime I'm ordering something from this day on, everything about the transaction was smooth and simple. I just got my tracking number today and the stuff is on its' way. Thanks for making this transaction so easy and not robbing your customers on something as frivolous as "handling".<br><br>Respectfully,<br>Brandon Booher<br>NHRA TAD #34

good amd nice. pretty cool wen=bsite

I build engines for Classic muscle cars and hot rods. Presently assembling chev. SB 383 cu/in. Went shopping for a Name Brand rotating assembly that was complete and ready to install.Shopped several other sites before finding "Autoplicity" Prices were GREAT (best I could find Anywhere), Shipping Very prompt, Shpg. charges Very reeasonable,I will Defenitely use them again!!!

Good prices. Good communication.

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