I ended up having to drill holes in the core of the divider. One hole was at 6 o'clock and the other at about 1 o'clock on the core of the baffle, while the insert has holes at 12 and 6. I also had to drill some holes as this insert doesn't reach the holes. Once installed it has mitigated the higher, penetrating exhaust spectrum and made driving much more enjoyable. Still very loud, and without it sounds a little meaner than deaf.
π§ Bapmic Engine Valve Cover with Gaskets & Bolts for BMW E82 E90 E70 128i 328i 528i X3 X5 Z4 (Part Number 11127552281)
9 Review
π§ FEL-PRO OS 34308 R Oil Pan Gasket Set: High-quality, Leak-proof Solution for Optimal Engine Performance
9 Review
Synthetic motor oil MOBIL SUPER 3000 X1 5W-40, 208L
61 Review
πͺ FEL-PRO VS 50569 R Valve Cover Gasket Set: Superior Performance and Durability
9 Review
2 Vepagoo 10In 13Lb/58N Gas Shock Spring Strut Lift Support For Cabinet Door Truck Tool Toy Box Lid - C16-03213
13 Review
MICHELIN Energy XM2+ 175/70 R13 82T summer
29 Review
ARANA C16-08568 20" Gas Lift Struts - Perfect For Trucks, RVs, And Boats - 20 Lbs Capacity - 2Pcs Set
15 Review
Tire Michelin ENERGY XM2+ 185/65 R15 88 H
30 Review