STM Stainless Axle-Back Exhaust for 2021+ Lexus IS300/IS350

STM Tuned Inc.



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The STM stainless steel axle-back exhaust for 2021+ Lexus IS300 and IS350 RWD/AWD connects directly to your factory y-pipe/cat for a perfect, USA-made fit and finish. This axle-back completely removes the rear mufflers and opens up the exhaust flow for the performance and sound this car was missing!

Made in house from 2.5" mandrel-bent stainless steel for a lasting quality backed by the STM Lifetime Warranty. This will bolt your existing exhaust hangers and includes new bolts and washers. You can reuse the existing OEM donut gasket and exhaust springs, but if you prefer new ones, we have them available separately.

Vehicle Fitment:
2021+ Lexus IS300 AWD/RWD (4 Cyl Turbo)
2021+ Lexus IS350 AWD/RWD (V6)

• STM Weight: 16.3 pounds
• OEM Weight: 27.8
• Saves 11.5 pounds
• Bolt-On Design
• Tig Welded, Back Purged
• Full .049" Wall Stainless Steel for lightest weight possible
• 2.5" Mandrel-Bent Piping
• Polished Stainless Steel Tips
• STM Products are made in the USA!
• Lifetime Warranty on STM Parts to the original purchaser against manufacturing defects

(1) STM Stainless Exhaust (2-Pieces)
(4) M10 x 1.5 x 90mm Bolts
(8) M10 Nuts

STM Box Dimensions:
12" x 16" x 53" (23 pounds total)

Pictured installed on a 2021 Lexus IS350 AWD F-Sport.
Sound clips coming soon!

Install Notes:
You can reuse your existing exhaust springs and donut gaskets, but if yours are beat, we do have the OEM replacements available separately. You'll need 2 gaskets and 4 springs for a total install.
• Donut Gasket
• Exhaust Spring

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