Size:XL-2PCSSpecification:1.After installed this product, the pressure blowing out of your exhaust will make your vehicle sounds like a turbo vehicle with blow off valve or the turbo system.2.Made of high quality aluminum, durable and Light weight .Car Turbo Whistle Made of light weight aluminum CNC Machined from 6061 T-6 Aluminum, durable3.Easy to install on the cars tailpipe.4.Universal fitment for all vehicles modelsMaterial:Aluminum AlloyColor:BlackSize:XL-2PCSSuitable Displacement: 2.0-2.4CCFor the exhaust pipe diameter: L / 44-55MM / 1.73-2.16inchDimension:115 x 28.19 x 28.19mm/4.53 x 1.11 x 1.11inchWeight:102gNote:Universal Fits for all vehicle, Do not fit piping inlet which is more than 2.5inch,not accepts for extremely curved tail pipes. Pls Note: Pls measure the diameter of the exhaust pipe before purchase to make sure the size fitting.Package Content:2 x Exhaust Silencer Pipe Whistle Turbo Sound Fake BlowOff Simulator