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USD 432.2
Part #: SLFS504A

Silverline FS504A 5" Turbo-Back Aluminized Exhaust System

2003-2007 Ford 6.0L Powerstroke (All Cabs & Beds)
Part #: SLFS504A
★★★★★ ★★★★★ 2 Reviews
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The Silverline FS504A 5" Turbo-Back Aluminized Exhaust System for your 2003-2007 Ford 6.0L Powerstroke is designed to increase horsepower and flow while replacing the old and restrictive exhaust on your truck. Built for optimal performance and a perfect fit, Silverline exhaust systems are developed using the latest technology and undergo extensive fitment testing. Using precise measurements, the mandrel bent tubing improves airflow for enhanced horsepower. The included Silverline Muffler provides a nice aggressive sound with a pleasant in-cab ride. This is due to the strategically placed louvers that provide excellent sound deadening. Exhaust tip not included.

  • Bolt-On Design
  • 5" Aluminized Mandrel Bent Tubing+
  • Dual-Chamber Louvered Muffler Design  
  • Includes Necessary Installation Hardware
Note: All Cabs & Beds applies to Ford F-250/350 pickup trucks only. This exhaust system is not intended for use on Cab & Chassis applications. Exhaust tip not included.

ANSA Exhaust Technologies warrants to the original retail purchaser that each Silverline Aluminized Exhaust System purchased from an authorized dealer shall be free from defects in material and workmanship for the period of 1-year. When used on private passenger cars and light trucks for personal use under normal operating conditions. The warranty commences on the date of the original purchase and is effective for the duration listed above, or for as long as the original purchaser owns the vehicle, whichever comes first.


  • MFG. Number FS504A
  • Manufacturer Name Silverline Exhaust by ANSA
  • Shipping Weight 113.00 lb.
  • Shipping Length 21 in.
  • Shipping Width 62 in.
  • Shipping Height 13 in.
  • Fuel Type Diesel
  • Diameter 5"
  • Exhaust Exit Single
  • Exhaust Type Turbo-Back
  • Material Aluminized Steel
  • UPC 713915007230
  • Warranty Yes
  • Warranty Info 1 Year
  • Prop 65 WARNING: Cancer & Reproductive Harm -


★★★★★ ★★★★★
1.5/5 Stars out of 2 Reviews
Give MBRP your money instead.
(CA) | June 8th, 2019
First off, XDP was great to deal with, got the system very quick. Box was beat to hell by UPS but its packaged very well inside, will do business with XDP in the future. As for the exhaust system, like the title says, give MBRP your money instead. Absolutely no way on gods green earth that down pipe is gonna fit, tried multiple different times, if you think so you're high. Mine was hitting the passenger up-pipe, pinch weld seam on the firewall, and the transmission crossmember. Read the forums and pretty much the same conclusions from other people, I'm not destroying my truck to make something fit. I weld professionally for over 15 years now and the weld on the DP is hammered dogs**t....burn through with big hangers on the inside and you can tell where they blew through and just kept trying to fill the holes......disgusting. Clamps are a joke, welds on those are questionable at best. Tried to reach out to Silverline as XDP suggested with no response. Ordered a MBRP downpipe, fit perfect, welds are nice and clean, no burn through, exactly what you'd expect. Also had to order an adapter and new lap joint clamps, fire up the TIG welder, start cutting and weldin to make it work. Bottom line dont waste your hard earned money on a product from a company that's let's products go out like that, it's ridiculous. Tried and tried to get that downpipe in there to no avail so it got the sawzall treatment when it came pride and craftsmanship whatsoever.
Not worth it
(Hawaii) | July 8th, 2018
Bought this 5in turbo back exhaust system for my 2006 F350. First off the exhaust welds are hand welded and are not very good looking welds. The exhaust hangers are welded on but not at the correct spots or even the right angles. Also the exhaust clamps dont work well even after they are tight the exhaust pipe was able to move at the join. The down pipe is where I had the most trouble. It is a 4 inch down pipe so it is very tight and touched in three places the up pipes, the transmission, and along the frame. No matter what there is no way to avoid touching and I didn't want to start smashing in the firewall and heat shield. The rattling in the cab was too obnoxious and if left alone something would have to give. I was able to make it work because I have a welder, chop saws and a grinder. I reused the stock 3in down pipe and weld back the piece that I cut to take if off. Also had to buy a 3-4 inch adapter then cut and welded the 4in down pipe to fit together. Also for the exhaust joins I bought exhaust band clamps with made a big difference holding everything tight. I only used clamps with hangers in the kit to attach to the exhaust hangers on the truck. Overall I like the sound but knowing what I know now would highly recommend a cat back exhaust. When you buy a product you shouldnt have to modify in order for it to work properly. If so I should state in product discription so the customer can make a better decision.

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Questions and Answers

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Most Popular Questions

Will this fit on a 05 Ford 6.0L Excursion?
View Staff Answer 
No it will not. The only systems that will work are listed specifically for the Excursion.
What diameter is the downpipe?
View Staff Answer 
The downpipe is 4".
Is the downpipe included?
View Staff Answer 
The Silverline FS504A 5" Turbo-Back Aluminized Exhaust System is a turbo-back kit that includes all the piping from the turbo to tail pipe.
XDP continues to closely monitor the COVID-19 (Coronavirus) outbreak. As an integral part of the automotive supply chain, at this point all call centers and distribution centers remain fully operational to ensure we keep vital service components flowing to vehicles used in transport of goods and emergency response. To ensure the health of our employees, families, and customers, we have made the following procedural changes:

  • Effective 3/16 we have shifted Customer Service hours to 8:30 – 7:00pm EST. To ensure compliance with New Jersey’s recent curfew.
  • Effective 3/18 we have decided to temporarily close both of our retail stores in NJ and NV.
  • Our technical sales team remains available Mon-Fri 8:30am-9pm and Saturday 10:30am-7pm EST.
  • All employees have been encouraged to follow the CDC's recommendations at home and in the workplace.
The circumstances of this virus are fast moving, as such, we will continue to update you with any further operational adjustments as needed. As always, we value your business and appreciate your patience as we manage this situation together.