BOLD Performance Cat-Back Exhaust
P/N# RBD-C2076L-01 &
P/N# RBD-C2076L-01ST
Looking to give your GX550 a little more personality. An exhaust note to match the masculine styling. Our full stainless steel 304 catback exhaust is just the ticket. Dual 2.5" mandrel bent inlet pipes feed the single high flow muffler. Exiting the large muffler canister is a single 3" mandrel bent pipe which exits under the rear bumper with either dual turndown tips or dual straight tips.
The muffler canister is tucked up high for clearance, the piping at the rear section snakes over the rear end and around the spare tire.
Produces an aggressive exhaust note. During acceleration the exhaust is bold sounding but at cruising and constant throttle input, the note is tame.
For those wanting something quieter, we do have a second version coming soon which includes an additional muffler at the rear mimicking the OEM exhaust layout. This additional muffler cuts some of the bite from the sound, and provides a more subtle overall exhaust note.
Features:
- High tuck design for maximum ground clearance
- 3" diameter, mandrel-bent, T304 stainless steel construction
- Polished T304 stainless steel hi-flow muffler
- OEM hanger position
- All hardware included
Compatible Wheelbase Application:
- 2024+ LEXUS GX550 3.4L V6 Twin Turbo
FREE Shipping to Continental US (Lower 48 states) & Canada
Why T304 Stainless Steel? (AI Overview)
T304 stainless steel is chosen over Aluminum/Aluminized steel and T409 stainless primarily for its superior, long-term corrosion resistance and durability in harsh environments. It features high chromium (approx. 18-20%) and nickel (approx. 8-10%) content, preventing rust in salty or wet conditions, whereas 409 develops surface rust and aluminized steel eventually corrodes.
Is T304 Stainless Steel Rust Free? (AI Overview)
T304 (or 304) stainless steel is highly resistant to rust and corrosion, but it is not completely rust-proof. It is considered the industry standard for "stainless" because it resists rust in most normal, everyday environments (like kitchen appliances, indoor sinks, and clean, dry environments) for many years.
However, T304 can still rust under specific, harsh conditions:
- Chloride/Salt Exposure: Coastal areas, saltwater exposure, or contact with salts can cause pitting and rust, as 304 is sensitive to chloride.
- Harsh Chemicals: Exposure to bleach, muriatic acid, or strong cleaning products can break down the protective chromium oxide layer.
- Contamination: If 304 comes into contact with iron particles or mild steel, those contaminants will rust, causing "surface rust" that appears to be on the stainless steel.
- High Humidity/Water: Long-term exposure to water, especially if not cleaned regularly, can cause surface staining or corrosion.
For environments with high salt or chemical exposure, 316 stainless steel is generally preferred over 304.