Syst-Ultra Flo Weld
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Dynomax Syst-Ultra Flo Weld

Part No. 39315 Warranty  

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DynoMax Performance Exhaust is a leading performance exhaust brand built on over 25 years of market leadership. Each and every DynoMax product is backed by engineers who know what you want and expect out of a performance exhaust product... and who exceed your expectations every time.
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REVIEW SNAPSHOT®

by PowerReviews
DynomaxSyst-Ultra Flo Weld
 
4.3

(based on 17 reviews)

Ratings Distribution

  • 5 Stars

     

    (6)

  • 4 Stars

     

    (10)

  • 3 Stars

     

    (1)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

94%

of respondents would recommend this to a friend.

Pros

  • Easy to install (16)
  • Great sound (13)
  • Adds style (8)
  • Increases power (5)

Cons

  • Noisy (3)

Best Uses

  • Everyday driving (15)
  • Replacement (12)
  • Performance driving (4)
    • Reviewer Profile:
    • Truck enthusiast (9), Auto enthusiast (8), Mechanic (8), Casual driver (7)

Most Liked Positive Review

 

Dynomax Cat back system # 39315

This is my second system, Dynomax has upgraded the clamps and muffler since my original purchase. The upgraded stainless slip over style clamps are much easier to use and install. They were a...Read complete review

This is my second system, Dynomax has upgraded the clamps and muffler since my original purchase. The upgraded stainless slip over style clamps are much easier to use and install. They were a much needed improvement. The standard style clamps are what contributed to my first pipe to rust out.It created a pinch point and a great place for road salt to just sit and cling to. My first system was quieter and muffler was slightly different. The new muffler has deeper sound, and nicer polished looking finish. Overall the improvements Dynomax made are functional, eased installation and provide performance. My stock muffler and tailpipe rotted out at 52k, the 1st Dynomax system lasted 85k. Hopefully this one will out last both. This is on my daily driver, New England winters/salt. Passes emissions testing, sounds good, nice look with SS tip. Nice upgrade over stock/OEM replacement. All needed brackets, bolts, donut gasket are included. Bottom line, hard to beat for the cost and what you get, proudly made in USA.

VS

Most Liked Negative Review

 

Disappointed with the outcome

Product was shipped quickly and arrived on time.
The exhaust system was designed as a direct replacement and as a result was easy to install. The stainless steel construction and polished stainless steel...Read complete review

Product was shipped quickly and arrived on time.
The exhaust system was designed as a direct replacement and as a result was easy to install. The stainless steel construction and polished stainless steel muffler looks great. However I was disappointed with the final results. I realize my vehicle is only a 4.0 6 cyl Ford Ranger but I was hoping for a better sound and performance. My truck now just sounds like a 6 cyl with a noisy muffler. I will probably end up replacing it again with another brand.

Reviewed by 17 customers

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Displaying reviews 1-10

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4.0

Nice sound

By Ken

from Louisburg, NC

About Me Auto Enthusiast, Mechanic, Truck Enthusiast

Pros

  • Easy To Install
  • Great Sound
  • Increases Power

Cons

  • 1 Clamp Too Big

Best Uses

  • Everyday Driving
  • Performance Driving
  • Replacement

Comments about Dynomax Syst-Ultra Flo Weld:

Sounds great on my 4.0L Ranger. My original system had rotted out from the cats back, so I need something new but didn't want to lose the mild rumble it had developed. This worked perfectly, slight rumble at idle, pretty quite while cruising and sounds awesome when accelerating without being really loud, just a nice powerful sound. Only issue was the clamp for the tip is a little big, just remove the hour glass shaped piece and you can tighten it up good.

Comment on this review(earn points)

 
5.0

Very good product for the money

By Dave

from Chatham, NY

About Me Auto Enthusiast

Verified Buyer
Level 1

Pros

  • Easy To Install
  • Great Sound

Cons

    Best Uses

    • Everyday Driving
    • Replacement

    Comments about Dynomax Syst-Ultra Flo Weld:

    All the parts came in one box and they all fit together like a glove. Good product for a fair price. Very satisfied with the product and I will shop for a similar product again when one of my other vehicles needs exhaust.

    Comment on this review(earn points)

     
    4.0

    DynoMax ultra fow stainles 05 Frd Ranger

    By Tom

    from Michigan

    About Me Advanced Diyer, Advanced D-i-y-er

    Verified Buyer
    Level 1

    Pros

    • Easy To Install

    Cons

    • Good But Maginal Quality
    • Nothing Considering Price

    Best Uses

    • Replacing Stock Exhaust

    Comments about Dynomax Syst-Ultra Flo Weld:

    You will not be disappointed for the price and what you get. The muffler is welded at the inlet and outlet but is the traditional rolled metal design for the body, but this should not be a corrosion issue with stainless. The hardware is good quality and very easy to install. You will need general hand tools to instal + a sawzall for quick removal of old exhaust. You should buy new spring bolts to install with this. Seems like the "mid" pipe sits a little lower then stock, at the same time has good clearance for the frame cross brace. This is a straight trough muffler design packed with fiberglass. Sounds good on the ranger 4.0, noise at 80mph w/ 4.10 gears is fine. I am not sure about durability when compared to fl0wm@ster's chambered design without fiberglass. Only worry is durability of the fiberglass packing - I am confident that a chambered design will last a very long time - this is my first fiberglass muffler so time will tell. I put "marginal quality" due to rolled metal body design and fiberglass packing - but this is minor due to what you get for the price!

    Comment on this review(earn points)

     
    4.0

    good product

    By pappyg

    from pa.

    About Me Casual Driver, Mechanic, Truck Enthusiast

    Verified Buyer

    Pros

    • Adds Style
    • Easy To Install
    • Great Sound

    Cons

      Best Uses

      • Everyday Driving
      • Replacement

      Comments about Dynomax Syst-Ultra Flo Weld:

      fit and finish are excelent

      Comment on this review(earn points)

       
      4.0

      Nice all Stainless steel exhaust

      By Donnie

      from Ohio

      About Me Mechanic

      Verified Buyer
      Level 1

      Pros

      • Adds Style
      • Easy To Install
      • Fit well
      • Great Sound

      Cons

        Best Uses

        • Everyday Driving
        • Replacement

        Comments about Dynomax Syst-Ultra Flo Weld:

        Perfect fit on my 2003 Ranger Super Cab. Its a nice mellow sound , not at all loud , and no more hissing like the factory system.
        Only reason its not 5 stars is that it dosent include 2 new bolts for the the front pipe , which my old ones were rusted badly.
        It's not much louder then stock , just mellow :)
        All stainless steel, including the muffler

        Comment on this review(earn points)

         
        4.0

        Dynomax on 2000 Ranger 4.0 OHV

        By 4pointslow

        from NJ

        About Me Automotive Instructor

        Verified Buyer
        Level 1

        Pros

        • Easy To Install
        • Great Sound
        • Increases Power
        • Woke This Truck Up

        Cons

        • One Clamp Didn't Fit

        Best Uses

        • Everyday Driving
        • Replacement

        Comments about Dynomax Syst-Ultra Flo Weld:

        This system seems good so far. It is a little louder but I can not hear it with windows up so it is not to loud. The truck felt slow with the old exhaust system that was restrictive. This system definitely improved power. Looks good. One clamp didn't fit so I had to buy a regular exhaust clamp, no big deal. lets see how long it lasts.

        Comment on this review(earn points)

         
        5.0

        Great deal easy install!

        By Z

        from Ohio

        About Me Auto Enthusiast, Truck Enthusiast

        Level 1

        Pros

        • Adds Style
        • Easy To Install
        • Great Sound

        Cons

          Best Uses

          • Everyday Driving
          • Replacement
          • Restoration

          Comments about Dynomax Syst-Ultra Flo Weld:

          I don't have anything bad to say about this product. The install was easy and everything fit together the way it was supposed to and appears to be good quality. However I would recommend buying a 2 1/2" metal swivel hanger to hang the tail pipe if you have an older vehile because your original hanger is most likely done for.

          Comment on this review(earn points)

          (2 of 7 customers found this review helpful)

           
          4.0

          make sure what you get is what you order

          By Bob

          from Lincoln, Nebraska

          About Me Auto Enthusiast, Casual Driver, Mechanic, Truck Enthusiast

          Verified Buyer
          Level 1

          Pros

          • Adds Style
          • Easy To Install
          • Great Price For This Prod
          • Great Sound
          • Increases Power

          Cons

          • Not As Described

          Best Uses

          • Everyday Driving
          • Replacement

          Comments about Dynomax Syst-Ultra Flo Weld:

          Looks good, sounds good. To bad the product wasn't as described.

          Comment on this review(earn points)

          (3 of 5 customers found this review helpful)

           
          5.0

          Good sound and great value

          By Mazda_Man

          from Ottawa,IL

          About Me Auto Enthusiast, Casual Driver, Truck Enthusiast

          Verified Buyer
          Helpful Reviewer

          Pros

          • Adds Style
          • Easy To Install
          • Great Sound

          Cons

            Best Uses

            • Everyday Driving
            • Performance Driving
            • Replacement

            Comments about Dynomax Syst-Ultra Flo Weld:

            The product was stated for a 98 Ford Ranger, but fit perfectly on my 98 Mazda B2500. I was pleased with the sound its mellow,not quiet not loud.

            Comment on this review(earn points)

            (2 of 4 customers found this review helpful)

             
            4.0

            Price Is Great For The Value

            By 1999 Ranger XLT 4.0

            from Central PA

            About Me Casual Driver, Mechanic, Truck Enthusiast

            Verified Buyer
            Level 1

            Pros

            • Easy To Install
            • Great Sound
            • Slight increase in power

            Cons

            • Unclear Directions

            Best Uses

            • Everyday Driving
            • Performance Driving
            • Replacement

            Comments about Dynomax Syst-Ultra Flo Weld:

            Sounds better the more it's driven. Was easier to piece together than to follow instructions. As for the price, 1/2 of what most cost, sounds as good if not better than most.

            Comment on this review(earn points)

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            Do you have questions about this product?(earn points for answers!)

             

            Ask a question, get answers from real customers and in-house experts. Or contact Customer Care by email or call 1-877-238-2623.

            4 Questions | 4 Answers
            Displaying questions 1-4
            • Q:

              Will this fit my 1999 Ford Ranger Single Cab 4Cyl? I believe its the 112" Wheel Base.
              Will I need to order the Walker Intermediate Pipe? Or can I get this one with the Walker Intermediate Pipe? I'd rather not pay an extra $35 if I dont need to.
              Asked on 5/20/2014 by Chris from Radcliff KY

              1 answer

            • Q:

              I want the Dynomax Syst-Ultra Flo Weld kit for the 1998 Ford Ranger that does not have the extended cab. For my application I will need the shorter intermediate pipe. Does it have a different product number?
              Asked on 9/24/2013 by mawketdawg from Westfield, MA

              1 answer

              • CUSTOMER CARE

                A:

                With reference to your question, the Dynomax Syst-Ultra Flo Weld - Part No. 39315, is an Exact fit for your 1998 Ford Ranger, Stainless Steel Cat-Back Exhaust System; Extended Cab w/72.0 inch/6 ft. Bed; 2.5inch Single system; RH(Passenger) Side Exit; Incl. Ultra FloG Welded Muffler; 3inch Polished Stainless Steel Tips; 50 State Legal. It is not an ideal part for Electric engine. The part is Dynomax Ultra-Flo Welded Mufflers - Part No. 17513 is exact fit for your vehicle. For any further assistance, please feel free to call us at 1-877-238-2623 or visit your nearest Advance Auto Parts store and one of our part pros would be more than happy to assist you.

                Answered on 9/25/2013 by Max from AAP
            • Q:

              Will this exhaust fit the 4.0 engine exhaust system?
              Asked on 9/14/2013 by Beef from La Jose Pa

              1 answer

              • CUSTOMER CARE

                A:

                For further assistance regarding the Dynomax Syst-Ultra Flo Weld (Part No. 39315), please provide the year, make, model and engine size of your vehicle. For more information, please feel free to call us at: 1-877-238-2623 or visit the nearest Advance Auto Parts store and one of our Parts Pros will gladly assist you with any questions or concerns you may have.

                Answered on 9/15/2013 by Steve from AAP
            • Q:

              Will this fit a 4 door ranger XLT?
              Asked on 6/28/2012 by Bill

              1 answer

              • CUSTOMER CARE

                A:

                In order to check the exact fit application, please provide the year, make, model and engine size of the vehicle and we would be better able to assist you.

                Answered on 6/28/2012 by Steve from AAP
            Displaying questions 1-4

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