Magnaflow 5" Downpipe-Back Aluminized Custom Builder Pipe Kit 18982

2001-2007 GM 6.6L Duramax (All Crew & Ext. Cabs)
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MagnaFlow Exhaust
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Custom Builder Pipe Kit
The Aluminized Custom Builder Pipe Kit Series has a limited 1 year warranty and offers the most options for customization. For the racer, it provides a mandrel bent pipe-only exhaust from turbo to tail pipe complete with all hardware. For the street driver, the CBPK is the basis for a custom exhaust that allows you to purchase and install the converter, muffler and tip of your choice.

Application: V8 6.6L (DIESEL); Silverado 2500HD/3500; Crew & Extended Cabs

Material: Aluminized Steel
Tubing O.D. Size: 5in.
System Type: Downpipe-Back
TIP O.D. Size: Tip not included 
Single/Dual: Single

Features and Benefits: 1-Year Warranty, Dyno Tested And Proven To Make Power, Performance Gains In Horsepower And Torque, Great Sound -Has A Smooth; Deep Tone, Easy To Install, Mandrel-Bent. All Welded. Built To Last.

Application Note: All Crew & Extended Cab fitment applies to GM 2500HD/3500HD Pickups. This system is not designed for use on Cab & Chassis models or Regular Cab trucks.
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(27 Ratings, 3 Reviews) Average Rating:
louder than a jet engine!
nicolas pinto (Abilene, TX) 5/9/2016 2:08 PM
Anyone looking to make their Duramax sound like an F-15 needs this in their life. Install took about 3.5 hours with the truck on the ground, well worth it. The only issue I had was with the first pipe not wanting to let me spin it in place, but some lube and sanding later it went right in. It growls on the low end and screams in the red with a really solid reverb throughout. I would recommend . order number 465289
Best bang for your buck and perfect fitment
Carlos (Delaware) 3/8/2016 7:18 PM
This exhaust is the best bang for your buck. Why spend more if they all do the same thing.. theyre all straight pipes. The fitment was great and install was a 7/10 difficulty only because i did it in the driveway.
Best fitting Kit
Sam (North Carolina) 2/1/2015 11:26 PM
I've sold and installed 100's of kits and this one takes the cake! They always fit perfect, Packed well, THE ONLY KIT ON THE MARKET WITH A 5" FRONT PIPE ITS A FULL 5" FROM THE DOWN PIPE OULET TO THE EXIT. Easy to remove once installed if you need to because it doesn't crimp in place. 5 Stars Great Kit for Duramax's and to top it off its a 90 degree exit unlike all the other brands that exit at 45 degrees.