Oxygen Sensor Restrictor Fitting with Adjustable Gas Flow Inserts 11619 M18 x 1.5

2PCS O2 Defouler Straight M18 x 1.5 fits Header and Exhaust Pipes Stainless Steel

Defouler (2x) Straight M18 x 1.5 fits Header and Exhaust Pipes.

JGR 2PCS Defouler Straight M18 x 1.5 For O2 Oxygen Sensor Lambda Sensor Fitting Bung

NGK 5464 BKR5EIX-11 Iridium IX Spark Plug, Pack of 4

Vibrant 11619 J-Style Oxygen Sensor Restrictor Fitting with Adjustable Gas Flow Inserts

ARES 71112 - Oxygen Sensor Rethread Tool - Easily Cleans Oxygen Sensor Hole Threads - Works with M18 x 1.5mm Spark Plug Threads

ARTR Titanium Lava Fiber 2 Inch x 50 Feet Exhaust Header Wrap Kit with 10pcs 11.8 Inch Stainless Steel Locking Ties

Red Line (50304) MT-90 75W-90 GL-4 Manual Transmission and Transaxle Lubricant - 1 Quart

ARTR Titanium Lava Fiber Exhaust Header Wrap 2 Rolls (2" x 50' each roll) Kit with 20pcs 11.8 Inch Stainless Steel Locking Ties