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FSD26 IS LIVE: Every $1 spent = 150 entries to win a 2024 F-350 Limited + $20,000 cash.
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Magnaflow

MagnaFlow Muffler Mag SS 22X5X11 2.5 D/3 C

SKU: MAG12588
$222.99
  • Make: Universal

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This purchase enters you to win the FSD26 truck: a 2024 F-350 Limited + $20,000 cash. Ends October 18. See the truck

The MagnaFlow 5 X 11in. Oval Straight-Through Performance Exhaust Muffler 12588 is engineered to enhance your ride with a healthy helping of our signature exhaust sound and dyno-proven performance thanks to its free-flowing straight-through perforated stainless steel core wrapped in stainless steel mesh and acoustic fiber fill. The reversible, universal 3/2.5in. diameter inlet/outlet Straight-Through layout allows you to install it in whatever orientation and configuration you see fit. However, professional installation is highly recommended. Muffler 12588s weight-optimized 5x11x22in. oval-shaped body features a satin finish that elevates the overall aesthetics of your current exhaust setup. 12588 is made of durable, corrosion resistant stainless steel and produced using cutting-edge CNC precision robotic manufacturing techniques, all backed by MagnaFlow's limited lifetime construction warranty.

  • Delivers a Smooth, Deep Tone
  • Delivers A Smooth-Deep Tone
  • Mufflers Are Bi-Directional
  • 100 Percent Stainless Steel
  • 100% Stainless Steel

This Part Fits:

Year Make Model Submodel
2003-2006 Cadillac Escalade Base
2003-2006 Cadillac Escalade ESV Base
2003-2006 Cadillac Escalade EXT Base
2007-2008 Chevrolet Suburban 2500 LS
2007-2008 Chevrolet Suburban 2500 LT
2007 Chevrolet Suburban 2500 LTZ
1996-1999 Chevrolet Tahoe Base
1996-1999 Chevrolet Tahoe LS
1996-1999 Chevrolet Tahoe LT
2008 Chevrolet Trailblazer Base
2002-2007 Chevrolet Trailblazer LS
2002-2009 Chevrolet Trailblazer LT
2002-2003 Chevrolet Trailblazer LTZ
2002-2004 Chevrolet Trailblazer North Face
2003-2006 Chevrolet Trailblazer EXT LS
2002-2006 Chevrolet Trailblazer EXT LT
2002-2004 Chevrolet Trailblazer EXT North Face
2009-2010 Dodge Ram 1500 Laramie
2009-2010 Dodge Ram 1500 SLT
2009-2010 Dodge Ram 1500 Sport
2009-2010 Dodge Ram 1500 ST
2009-2010 Dodge Ram 1500 TRX
2009-2010 Dodge Ram 1500 TRX4
2004-2009 GMC Envoy SLE
2004-2009 GMC Envoy SLT
1999 GMC Yukon Denali
1996-1997 GMC Yukon SL
1996-1999 GMC Yukon SLE
1996-1999 GMC Yukon SLT
2003-2006 GMC Yukon XL 1500 Denali
2007-2008 GMC Yukon XL 2500 SLE
2007-2008 GMC Yukon XL 2500 SLT
2006 Isuzu Ascender Base
2004-2006 Isuzu Ascender LS
2004-2005,2007-2008 Isuzu Ascender S
2013-2016 Nissan Frontier Desert Runner
2010 Nissan Frontier LE
2010-2016 Nissan Frontier PRO-4X
2011-2016 Nissan Frontier S
2010 Nissan Frontier SE
2011-2016 Nissan Frontier SL
2011-2016 Nissan Frontier SV
2011-2014 Ram 1500 Big Horn
2012-2014 Ram 1500 Express
2013-2014 Ram 1500 HFE
2012-2014 Ram 1500 Laramie
2014 Ram 1500 Laramie Limited
2012-2014 Ram 1500 Laramie Longhorn
2014 Ram 1500 Lone Star
2011-2014 Ram 1500 Outdoorsman
2013 Ram 1500 R/T
2011-2014 Ram 1500 SLT
2014 Ram 1500 Special Service
2012-2014 Ram 1500 Sport
2011-2012 Ram 1500 ST
2012-2014 Ram 1500 Tradesman
2012 Ram 1500 Tradesman HD
2011 Ram 2500 Laramie
2011 Ram 2500 Laramie Longhorn
2011 Ram 2500 Power Wagon
2011 Ram 2500 SLT
2011 Ram 2500 ST
2001-2006 Toyota Sequoia Limited
2001-2006 Toyota Sequoia SR5
2007-2013 Toyota Tundra Base
2001-2002,2007-2013 Toyota Tundra Limited
2013 Toyota Tundra Platinum
2014-2015 Toyota Tundra SR
2001-2002,2007-2011,2014-2015 Toyota Tundra SR5

Customer Reviews

Overall rating: 4.7 / 5 from 529 reviews.

Customer photo review of FSD 03-09 Dodge Cummins Billet Heat Exchanger

The billet heat exchanger looks great and is machined nicely. No worries about an internal failure allowing fluids to mix. It seems to be doing its job. It's more robust than the factory style cooler but I don’t believe it is quite as efficient based on warm up times I’m seeing. My only gripe is the bracket mounting bolts, they thread directly onto the cooler instead of passing all the way through and securing with nuts. Make sure to use thread locker along with the lock washers. As a rough guide, torque for M8 fasteners in aluminum should be 11-15 ft lbs, no torque spec is listed for the mounting hardware in the instructions.

Charles H. 4/5 Verified

FSD 03-09 Dodge Cummins Billet Heat Exchanger

Customer photo review of FSD 2003-2007 Dodge Cummins Heater Hose Kit Black Braided

It’s not bad, I was in a bind and needed a quick fix to get my truck back going. So first things first, the kit works. You can get rid of the steel lines and these will take their place. With about an hour and a half and a little research it doesn’t take much to get these hoses installed. However, I have some gripes about this kit. 1. You have to be very careful about how the lines are run to prevent the hose from kinking. 2. There are no p clamps or hardware included to hold the lines in place. To improve this kit, I’d toss some hose clamps, a couple bolts with some p clamps to hold the hose, maybe a couple pictures on where to run things too, or even total install instructions. Stiffer hose would be good too, in my pictures you can see that the hose going to the front of the engine is trying to kink as it makes the bend to run beside the turbo.

Noah T. 3/5 Verified

FSD 2003-2007 Dodge Cummins Heater Hose Kit Black Braided

Customer photo review of Kingspeed Billet Front Cover 94-02

It came with no gaskets this item deff needs to be sold with cover gasket as well as the seal for the crank even a plug for the vent or a fitting to hook a tube to the vent. Didn’t come with shit but bolts. Now I got to track everything else down seperatly makes it a pain in the ass. At this point I’d rather have stayed stock

Jacob M. 3/5 Verified

Kingspeed Billet Front Cover 94-02

Customer photo review of FSD 2010-2012 Dodge Cummins Factory Replacement Transmission Line Kit Black Braided

I installed them when I built my transmission. Hoses are good quality but fittings felt kind of cheap. Not a bad kit at all. I’d recommend it to anyone. Substantial trans temp difference after putting them on. My trans runs a lot cooler now that I’ve bypassed the heat exchanger. 2012 ram 2500 with 68rfe. 9/10 would recommend. Just be gentle with the fittings

Max F. 4/5 Verified

FSD 2010-2012 Dodge Cummins Factory Replacement Transmission Line Kit Black Braided

Customer photo review of FSD 03-09 Dodge Cummins Elite Drop-In Transmission Cooler Kit

I installed this cooler and a few weeks later got into a wreck that was able to damn near total my truck, the frame is bent in 4 places and it shifted my ranch and bumper a foot. This cooler was the only radiator that survived everything else was destroyed and wrapped around the cooler. I called customer support and was able to order new stainless steel brackets and this cooler will live again. I’m very impressed with the quality and strength of this part and would gladly buy it for another truck.

Fritz G. 5/5

FSD 03-09 Dodge Cummins Elite Drop-In Transmission Cooler Kit

Customer photo review of Kingspeed 06-Current Dodge Ram Billet Budget Builder Valve Cover

I love the product. I am just upset that it wasn’t clear it doesn’t come with any hardware. I currently have no clue what barb fittings and hose sizes I need to get for the valve cover to my catch can. I am currently using a hardware store setup as this is my first Cummins and my first quality build of a truck. If there’s anyway you could assist me or point me in the right direction that would be awesome. Aside from that I’ve had nothing but compliments on it, I actually won top 10 truck and SCT x GFP in Nashville a few weeks back. Everyone including myself love the valve cover.

Caleb H. 3/5 Verified

Kingspeed 06-Current Dodge Ram Billet Budget Builder Valve Cover

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