Axleback (Muffler Ver.) - Lexus IS300 / IS350 [2021+] - 1

Axleback (Muffler Ver.) - Lexus IS300 / IS350 [2021+]

REMARK SKU: RO-TSE4-DM

$795.00 USD

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PRODUCT INSTALLATION GUIDE

This REMARK axleback includes two high flow, straight through design muffler canisters.  It produces a deep sporty exhaust note. This is ideal for those wanting an exhaust note without it being overbearing, and the primary sound heard from inside the car. There is a nice balance of a deep exhaust tone and the engine sound. We consider the sound volume quite mild, and feel it sounds like something you could purchase at the dealership as an optional performance part. 

Offered in two variants which differ in tip finish:
FINISH
  • Stainless - Fully polished stainless steel to a high luster
  • Burnt- Stainless steel is treated to add a spectrum of colors ranging from gold, purple, and blue. This is achieved through a chemical process for improved consistency, and does require more care when cleaning, LINK.
Both variants are Double Wall construction - the tip has an inner and outer layer of stainless steel. In general the appearance is more luxurious as the tip appears thicker and more pronounced. From the rear, the tips appear to have more of a shine due to the added surface area on the tips edge.

Our kit is a simple bolt-on replacement for the OE mufflers. No modifications are required, does not trigger any check engine lights, and does not effect vehicle emissions. Installation is simple and straight forward. No cutting, no welding, and the factory exhaust can be reinstalled easily anytime. Full 304 Stainless Steel construction, and fully TIG welded by our expert craftsmen. Kit includes both right and left side, as well as required hardware for installation.


This product fits different models of the Lexus IS. It will sound different based off the engine size and type. In general, the IS300 sounds quieter due to the nature of a 3.0L turbocharged engine. The larger 3.5L V6 models will generally sound louder. 

NOTE for AWD owners with the 6spd transmission - customer feedback for the 6spd is that there is significant drone at low RPM, cruising speed. We unfortunately have not been able to experience the sound or capture any video for a 6spd AWD. REMARK is based in Southern California where the there vast majority are 8spd RWD. 


Part number
Tip Options
RO- TSE4-DM Stainless Double Wall 
RO- TTE4-DM Burnt Stainless Double Wall 
Year/Make/Model

  • 2021+ Lexus IS300 (4 Cyl. Turbo)
  • 2021+ Lexus IS350 (V6) - louder than Turbo model
  • Fits RWD
    Fits AWD**, see note in red above regarding 6spd trans.
Exhaust Type  Axle Back Exhaust Bolt on 2pc 
Piping Diameter 2.5inch, 16 gauge, mandrel bent pipe
Tip Diameter 4inch tip design slant style tips
Piping Material  T304 stainless steel
Tip Material T304 stainless steel
Muffler Material T304 stainless steel, straight through design
Weight  Optimal weight reduction from the factory mufflers
Hardware We have designed our flanges to fit factory midpipes correctly, due to that you will be: 
*You will be using factory Donut Gaskets 
*You will be using factory Spring Bolts

- REMARK Limited Warranty
** Eligible for purchases direct from www.remark-usa.com
** Excludes taxes and duties on international orders
** No Returns or Exchanges accepted 
** Read disclaimer before purchasing: Click here to read

Customer Reviews

Based on 12 reviews
83%
(10)
8%
(1)
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8%
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80.0
80.0
Q
Q
23 IS350 rwd

Nice defined sound, loud when it needs to be. I drive a lot of highway miles, lil to no drone. I just change the drive settings depending on speed if I need it to be quieter.

J
Joel F.
Very, very Nice!

These look and sound amazing. They are exactly what I was looking for!

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Anthony C
Re-mark-a-ble

Installed the Remark AxelBack exhaust with burnt tips on my 2024 Lexus IS, and I couldn't be happier. The fitment was spot-on, everything lined up perfectly, and the install was quick and hassle-free. The sound is exactly what I was looking for: deep, refined, and sporty without being obnoxious. It also cleans up easily, which is a nice bonus. I opted for in-person pickup to avoid any shipping issues, and the whole process was smooth.
Overall, this system is absolutely worth the money. Remark really delivered-highly recommend!

Regarding drone, a bit noticeable (inside the cabin) at 2-3k throw on an intake or K&N and it softens it a bit. However outside the vehicle it sounds just fine!

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Anonymous
Good sound but definite drone

Great sound when you're on it, and easy install, but serious drone under medium load at low rpm. Trying to maintain 70mph in 6th gear is pretty rough, and transmits a lot of vibration into the cabin. I'll probably look at getting some low frequency dampeners and see if that helps.

J
Jason
Great product

I have the muffler version installed on my 22 is 300. Sounds great, bit of drone on the highway but nothing major. Gives the car a sporty and more aggressive sound, and a much better look than stock.

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