null
Shop by Make, Model & Year

BESTfit Internal Muffler Inserts For 5in, 6in, 7in & 8in Stacks

BESTFIT TRUCK PARTS

SKU:
PPR_894
Shipping:
Calculated at Checkout
On Sale
FREE SHIPPING OVER $249
Guaranteed Fit
$135.99 - $182.99
In Stock & Ready To Ship! Order in the next %HOUR% and %MINUTE% to ship today.
In Stock & Ready To Ship! Order in the next %MINUTE% to ship today.
In Stock & Ready To Ship! Order in the next %HOUR% and %MINUTE% to ship tomorrow.
In Stock & Ready To Ship! Order in the next %MINUTE% to ship tomorrow.
In Stock & Ready To Ship! Order now to ship Monday.
BESTfit Internal Muffler Inserts For 5in, 6in, 7in & 8in Stacks

BESTfit Internal Muffler Inserts For 5in, 6in, 7in & 8in Stacks

$135.99 - $182.99

Description

Reduce exhaust noise and extend stack life with BESTfit Internal Muffler Inserts for 5-, 6-, 7-, and 8-inch stacks. Crafted for optimal airflow and precision fit, these inserts replace OEM parts 87Q-50038AZ, 87Q-60038AZ, 87Q-70038AZ, and 87Q-80038AZ. Easy to install and engineered for long-term reliability, they provide professional-grade sound control and durability.

BESTfit 8 X 39 Inch Exhaust Muffler Insert Replaces 87Q-80038AZ

8 Inch Aluminized Steel Exhaust Muffler Insert By BESTfit

* High Quality Exhaust Muffler Insert
* Made Of Aluminized Steel
* Reduces Exhaust Noise Levels By 4 - 6 Decibels
* Free Flow Design
* Can Be Used On Either Single Or Dual Stacks
* Not For Use With DPF Systems
* Fits 8 Inch O.D. Spools And Stacks
* Dimensions:
  - 39 Inch Height
  - 8 Inch Diameter
* Sold Individually
* Warranty On Muffler Inserts Against Defects In Workmanship & Material From Date Of Purchase

*** High Quality Aftermarket Replacement Part ( Not Oem )

** Replaces Dynaflex Number 87Q-80038Az


BESTfit 6 X 39 Inch Exhaust Muffler Insert Replaces 87Q-60038AZ

6 Inch Aluminized Steel Exhaust Muffler Insert By BESTfit

* High Quality Exhaust Muffler Insert
* Made Of Aluminized Steel
* Reduces Exhaust Noise Levels By 4 - 6 Decibels
* Free Flow Design
* Can Be Used On Either Single Or Dual Stacks
* Not For Use With DPF Systems
* Fits 6 Inch O.D. Spools And Stacks
* Dimensions:
  - 39 Inch Height
  - 6 Inch Diameter
* Sold Individually
* Warranty On Muffler Inserts Against Defects In Workmanship & Material From Date Of Purchase

*** High Quality Aftermarket Replacement Part ( Not Oem )

* Replaces Dynaflex Number 87Q-60038Az


BESTfit 5 X 39 Inch Exhaust Muffler Insert Replaces 87Q-50038AZ

5 Inch Aluminized Steel Exhaust Muffler Insert By BESTfit

* High Quality Exhaust Muffler Insert
* Made Of Aluminized Steel
* Reduces Exhaust Noise Levels By 4 - 6 Decibels
* Free Flow Design
* Can Be Used On Either Single Or Dual Stacks
* Not For Use With DPF Systems
* Fits 5 Inch O.D. Spools And Stacks
* Dimensions:
  - 39 Inch Height
  - 5 Inch Diameter
* Sold Individually
* Warranty On Muffler Inserts Against Defects In Workmanship & Material From Date Of Purchase

*** High Quality Aftermarket Replacement Part ( Not Oem )

* Replaces Dynaflex Number 87Q-50034Az


BESTfit 7 X 39 Inch Exhaust Muffler Insert Replaces 87Q-70038AZ

7 Inch Aluminized Steel Exhaust Muffler Insert By BESTfit

* High Quality Exhaust Muffler Insert
* Made Of Aluminized Steel
* Reduces Exhaust Noise Levels By 4 - 6 Decibels
* Free Flow Design
* Can Be Used On Either Single Or Dual Stacks
* Not For Use With DPF Systems
* Fits 7 Inch O.D. Spools And Stacks
* Dimensions:
  - 39 Inch Height
  - 7 Inch Diameter
* Sold Individually
* Warranty On Muffler Inserts Against Defects In Workmanship & Material From Date Of Purchase

*** High Quality Aftermarket Replacement Part ( Not Oem )

* Replaces Dynaflex Number 87Q-70038Az


Additional Information

Truck Class:
Universal
Length Options:
39 Inch
Make:
Universal Items
Finish Options:
Chrome-Plated
Material Options:
Steel
Truck Class:
Heavy Duty
Product Type:
Exhaust
Diameter Options:
7 Inch
Diameter Options:
6 Inch
Material Options:
Aluminized Steel
Diameter Options:
5 Inch
Availability:
Ready To Ship
View AllClose

Don't See What You Are Looking For? Contact One Of Our Parts Pros at 888-875-7787


Buying the Right Part:
 To the best of our knowledge, all application information and photos are accurate.  There can be application errors from manufacturers and technical support from time to time.  Therefore, we recommend you do the following to insure you order the correct parts:


1)    Make sure ALL the vehicle information you provide is correct
2)    Feel free to contact one of our Customer Service team members to clarify what you are wanting to order
3)    Compare web photos with your old part
4)    When the part arrives, compare it to the old part prior to installation


Four State Trucks assumes no liability related to product use and fitment.  Buyers are solely responsible to insure that product use and fitment is consistent with their truck or application. 


Introducing the Official 4 State Trucks Mobile App – Gear Up On the Go!