2018-2022 Polaris RZR RS1 Dual Full Exhaust Stage 5 | Trinity Racing

The Polaris RZR RS1 leaves real horsepower and exhaust note on the table with its restrictive stock system, and the Trinity Racing Stage 5 Dual Full Exhaust fixes that from the header back. This complete bolt-on RZR RS1 exhaust replaces the factory head pipe and mufflers with 304 stainless mid and head pipes plus dual aluminum mufflers, unlocking stronger throttle response, an aggressive tone, and race-proven durability on your single-seat RS1.

Key Features

• 304 brushed stainless steel mid-pipe and head pipe for a true header-back upgrade
• Dual lightweight aluminum mufflers, fully TIG welded by hand
• 6061 billet muffler clamps and CNC-machined billet exhaust tips
• USFS-approved spark arrestors included for BLM and forest use
• Complete RZR RS1 full system, not just a slip-on muffler swap
• Three finishes: Brushed, Black, and Cerakote with a stainless header
• Backed by a 2-year manufacturer warranty

Built To Solve: RZR RS1 Power, Sound, and Weight Complaints

• A restrictive factory RS1 exhaust that chokes mid-range power and throttle response
• A flat, quiet stock tone that gets lost on the dunes and in a group ride
• Heavy OEM muffler hardware adding unnecessary weight out back
• Thin factory tubing that dents and discolors under hard desert heat
• Wanting a full header-back gain instead of just a bolt-on muffler

Best For: Single-Seat RZR RS1 Dune and Desert Riders

• RS1 owners chasing the maximum bolt-on horsepower and torque gain
• Dune and desert riders who want an aggressive, head-turning exhaust note
• Racers and hard trail riders needing TIG-welded, billet-clamped durability
• Builders pairing a full exhaust system with a tune and heavy-duty drive belt
• Riders who want to pick their finish in Brushed, Black, or Cerakote

Specifications

• Configuration: Dual full system (header-back)
• Mid-pipe and head pipe: 304 brushed stainless steel
• Mufflers: Dual aluminum, fully TIG welded
• Clamps and tips: 6061 billet aluminum
• Spark arrestor: USFS-approved, included
• Sound level: Trinity sound scale 4 of 5 (very loud)
• Warranty: 2 years
• Manufacturer Part Number: TR-4166D (Brushed), TR-4166D-BK (Black), TR-4166D-C2 (Cerakote w/ Stainless Header)

Fitment

• Polaris RZR RS1, 2018-2022 (single-seat)

Fitment is not guaranteed on applications not listed above. Confirm your year, model, and trim before ordering.

FAQ

Does this Trinity exhaust add horsepower on the RZR RS1?

Yes. As a full header-back system it replaces the restrictive factory head pipe and mufflers to improve exhaust flow, which sharpens throttle response and builds mid-range torque over stock on the RZR RS1.

How loud is the RS1 dual full system?

It sits at 4 out of 5 on Trinity's sound scale, a loud and aggressive tone that stands out on the dunes and trail while still running USFS-approved spark arrestors.

Is a spark arrestor included for forest and BLM riding?

Yes. USFS-approved spark arrestors are built in, so your RZR RS1 stays compliant on spark-arrestor-required land.

What finishes are available for this RS1 full system?

Three: Brushed 304 stainless, Black, and Cerakote with a stainless header. All three share the same performance internals and fitment.

Do I need a tune after installing a full exhaust?

A full system pairs best with a PowerVision reflash to fully capitalize on the added airflow, though it will bolt on and run without one.

Will this fit a two-seat RZR XP 1000 or Turbo?

No. This system is built specifically for the single-seat RZR RS1. Two-seat XP 1000 and Turbo models use different Trinity Racing systems.

Why Trinity Racing

Trinity Racing has built championship-winning UTV exhaust and clutch products for decades, and every Stage 5 system reflects that race program. The RZR RS1 dual full system is TIG welded by hand, clamped with 6061 billet hardware, and backed by a 2-year warranty, so it holds up when you push your RS1 hard in the dunes and desert.

Complete Your RZR RS1 Performance Build

Add the RZR RS1 dual full system to your build, then finish the job: confirm your 2018-2022 RS1 fitment, choose your finish, and pair it with a PowerVision tune and a heavy-duty drive belt to turn the extra airflow into real, reliable power. Deciding between this and a slip-on? The RS1 slip-on is the lighter-hit option, while this header-back full system delivers the biggest bolt-on gains.