Description
Sold as one matched pair — two SMS Precision door-midrange adapters per quantity ordered.
Install a 3-Inch-Class Midrange in the Lexus IS250 / IS350 Factory 3-Way Door Location
This SMS Precision adapter pair was created for the Lexus IS250 / IS350 factory 3-way door speaker location. The replacement midrange must match the adapter's cutout, mounting footprint, basket clearance and available door depth.
Fitment is based on the supported Lexus IS250 / IS350 factory 3-way door configuration.
Before You Order
- Vehicle: Confirm the vehicle is a Lexus IS250 or IS350 using the supported factory 3-way door configuration.
- Speaker location: These are for the documented door-midrange position, not a universal Lexus door-speaker adapter.
- Replacement driver: Confirm the actual 3-inch-class midrange cutout, flange, mounting pattern and clearance before ordering.
- Other 3-inch-class drivers: Do not assume nominal size alone confirms fitment. Use the on-page fitment builder to verify the exact driver or supply the required dimensions through Build to Size.
- Rear clearance: Check basket, magnet, terminals, wiring and door structure.
- Front clearance: Verify factory grille, trim and cone/surround clearance before final assembly.
Add to Cart stays locked until the required fitment confirmation is complete.
What Comes With It
- Two matched SMS Precision Lexus IS250 / IS350 door-midrange adapters
Midrange drivers, wiring and installation hardware are not included unless specifically stated elsewhere on the order.
Fit the Actual Driver — Not Just the “3-Inch” Label
Three-inch-class midranges can use different cutouts, frame diameters, basket profiles and mounting depths. Every replacement driver must match the required adapter mounting geometry and vehicle clearance.
If the exact speaker is listed in the fitment builder, use that selection. If it is not listed or the dimensions differ from current manufacturer specifications, use Build to Size and enter the required dimensions.
Construction
The adapters are 3D-printed in ASA for automotive use and made to order for the confirmed configuration.
Exact Product Details
| Sale unit | One matched pair — two adapters |
|---|---|
| Vehicle application | Lexus IS250 / IS350 with the supported factory 3-way door configuration |
| Speaker location | Factory door-midrange position |
| Replacement speaker | Dimensionally compatible 3-inch-class midrange, subject to cutout, mounting and vehicle clearance checks |
| Other drivers | Require exact dimensional fitment confirmation or Build-to-Size measurements |
| Material | 3D-printed ASA |
| Drivers included | No |
| Final fitment check | Verify exact driver cutout, frame, depth, basket, terminals, wiring, grille and trim clearance |
More SMS Precision 3D-Printed Speaker Adapters & Spacers
Need adapters for another door, dash, tweeter or speaker size? Shop our dedicated speaker adapter and spacer collection. Check the exact vehicle, factory audio system and speaker dimensions on each listing before ordering.

