Product Weight: 6 lbs. Our GX550/LC250 Axle Dump Exhaust is made from 3-inch diameter titanium tubing. This exhaust replaces the factory rear (axle-back) section, providing extra clearance for off-road use, enhanced exhaust sound, and 10–15 lbs. of weight savings. On the GX550, this axle dump exhaust increases volume by approximately 15–20%, giving a slightly deeper tone. Idle volume increased about 10 dB, and top-end volume increased about 15 dB in testing. On the LC250, volume increases approximately 5–10%, with idle volume up about 5 dB and top-end volume up about 7 dB. The proprietary modular exhaust flange design allows this axle dump exhaust to fit both the GX550 and LC250. (The included exhaust flange spacer is for GX550 only.)