Thermal R&D Cat-Back Ceramic Coated Dual Rear Exit Touring Exhaust System for the Polaris Slingshot (2020-2024)

(8 reviews) In Stock
  • $1399.00

  • Part Number: SM-8591
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Manufacturer:

Cat-Back:
Yes

Pipe Diameter:
2" Mandrel Bent

Color:
Black Ceramic Coated

Hardware Included:
Yes

Made In:
U.S.A.

Material:
T304 Stainless Steel

Warranty:
Lifetime Warranty

Polaris Slingshot Fitment Guide:
2020 Slingshot GT LE / R / SL
2021 Slingshot R / R LE / S / SL
2022 Slingshot R / S / SL / SLR
2023 Slingshot R / S / SL / SLR
2024 Slingshot R / S / SL / SLR

2020-2024 Polaris Slingshot Ceramic Coated Dual Rear Exit Exhaust System by Thermal R&D
Every once in a great while a product is released for the Polaris Slingshot that absolutely blows our minds. This dual rear exit touring exhaust system from Thermal Research & Development is one of them! This is the first exhaust system for the Polaris Slingshot that checks all the boxes. It's ceramic coated from top to bottom, which insulates the exhaust heat, vastly reducing cabin foot well and trans tunnel temperatures, making it the most comfortable rear exit exhaust system we've tested to date. The entire system is built from 304 mandrel bent stainless steel and tucks in the trans tunnel so that you don't lose ground clearance. The exhaust system features custom billet aluminum exhaust hangars for the rear end and a trans tunnel mount for the center support along with a center slip joint to allow for vast temperature variations. Most importantly, the tips run low to the ground and shoot out of both the left and right corners of the vehicle, making this the first dual exit exhaust system that is compatible with all of our rear fenders and luggage systems. It's also the first rear exit exhaust system that had zero emissions smell in the cabin. If you're looking for the creme de la creme of exhaust systems, with a perfectly balanced "drone free" exhaust note throughout the RPM band, that's backed with a Lifetime Warranty... Thermal R&D is the choice for you!

Features of the Thermal R&D Touring Exhaust System for the 2020-2024 Polaris Slingshot

  • Ceramic Coated from Start to Finish
  • No Droning
  • Mandrel Bent 304 Stainless Steel
  • Compatible with All Rear Fenders & Luggage Bags
  • No Emissions Smell in the Cabin
  • Custom Billet Aluminum Exhaust Hangars
  • Lifetime Warranty


Bullets
Cat-Back Yes
Pipe Diameter 2" Mandrel Bent
Product Details
Color Black Ceramic Coated
Hardware Included Yes
Made In U.S.A.
Material T304 Stainless Steel
Warranty Lifetime Warranty
Rated 5/5 by 8 verified buyers

05/25/2026 2:11 pm

Point / Counterpoint
First off, "Best addition I could have made to my manual 21 Slingshot R.
POINT, The biggest differences, lower sound and its behind you, No Exhaust fumes, cooler cockpit. nice hefty sound when accelerating, 3,000rpm is a quieter cruse. if you want even quieter, go to a lower gear.
COUNTERPOINT, ground clearance. You will notice the difference between 1 person and two as well and a full tank. Raised centers on RR crossing will hit. So, when installing the exhaust, tighten up the load on the rear spring and pick up an additional one inch and a little less bounce when loaded and crossing raised objects. After a while you will notice you are building up exhaust residue on the rear assembly. Swing arm, wheel, around the exhaust exits and the rear wheel well.
I had mine professionally installed by a Slingshot dealer. Nice solid installation.
CONCLUSION, most performance enhancements usually have a "Yin and a yang. The benefits far outweigh the negatives.
Just buy it!


05/14/2026 2:53 pm

Perfect
Just picked up the Slingshot R from the dealer who installed the R&D exhaust. They did a spectacular job and what a remarkable difference. About an hour to install for the dealer.
The cockpit runs cooler, no right-side noise to contend with. The sound is deeper and behind you. It's still there, deeper and focused behind and away. 3,000rpm is a smooth quite ride now, you know you're under hard acceleration with a typical dual exhaust sound, then it returns to a pleasant sports car exhaust sound.
Well worh the cost.


11/25/2024 4:54 am

cat-back exhaust
the thermal r&d cat-back ceramic dual real exit touring exhaust system install great looks well and sound great thanks thermal r&d great product.


06/10/2024 8:03 am

Awesome System
The exhaust system was easy to install and I love the sound and performance of it. It also looks amazing coming out under my sling!


04/04/2024 5:55 am

Dual exhaust on The Green Hornet
Had my pipes installed and they sound good. Had this exhaust smell at 1st but that went away after hitting the highway. I have a 2021 R LE and the pipes fit.

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Prop 65 Notice

Prop65 WARNING: Handling passenger or off-highway motor vehicle parts can expose you to chemicals such as phthalates and lead, which are known to the State of California to cause cancer and reproductive harm. To minimize exposure, service the vehicle in a well-ventilated area, wear gloves, and wash your hands. For more information see www.P65Warnings.ca.gov/motor-vehicle-parts
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