BOLD Performance Cat-Back Exhaust
P/N# RBD-C2076L-01Q (Quiet Spec)
Want to give your Lexus GX550 a subtle and deep exhaust note. We are proud to offer our quiet spec 3" catback system which features two muffler canisters in a layout similar to the OEM exhaust system. Dual 2.5" mandrel bent inlet pipes feed the single large body high flow muffler under the middle section of the vehicle. An additional 3" straight through muffler is placed at the rear. Single 3.0" turndown tip positioned behind the rear bumper.
Produces a deep exhaust note during acceleration and deceleration. During idle and cruising, the exhaust note is subtle.
If you are looking for something with more of an exhaust note, check out our other version which eliminates the second muffler at the rear,.
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.