GReddy 2015-2020 Lexus RC350 Supreme SP Exhaust (10118204)

Regular price $805.50 USD Sale price $805.50 USD Regular price $895.00 USD
Sale 10.0% $89.50 USD (10.0%)
In Stock: 1
SKU: gre10118204
Product Description

The Supreme SP for the 2015-on Lexus RC350 features up to a 10whp gain with a sophisticated exhaust note and an aesthetically artistic design. No exhaust drone is produced by the traditional dual oval muffler axle-back arrangement with huge, free-flowing 63.5mm (2.5") pipes. The two substantial SP mufflers give it great noise reduction while idling and traveling. The straight-through configuration gives the exhaust a deep, rich GReddy sound when you accelerate quickly. The distinctive quad-tip configuration uses two different diameters in a distinctive layout to best complement the vehicle's styling. The fully hand-welded 304 Stainless-Steel exhaust comes with a Limited Lifetime Warranty, just like all GReddy Supreme SP systems.

NOTE: For installation, please invert the rubber mounting hanger, on the inner side of the muffler canisters, to be above the muffler hanger.


    • Fits 2015+ Lexus RC350 (RWD & AWD)
    • Fits 2015+ Lexus RC350 F-Sport (RWD & AWD)
    • Fits 2016+ Lexus RC200T 
    • Fits 2016+ Lexus RC200T F-Sport (RWD)
    • Fits 2016+ Lexus RC300 (RWD & AWD)
    • Fits 2016+ Lexus RC300 F-Sport (RWD & AWD)


  • Hand-Welded 304 Stainless Steel
  • Dual Muffler, Quad Tip Axle-Back Style
  • 63.5mm (2.50") Exhaust Piping
  • 82.5mm (3.25") Outer Exhaust Tips
  • 89.0mm (3.50") Inner Exhaust Tips
  • Sound Suppression at Idle and Cruising Speeds
  • Up to 10 WHP Gains
  • Minor Torque Gains
  • Produces No Exhaust Drone
  • Deep, Rich Tone at Higher RPMs
  • Beautiful Design/Styling


  • Chassis:  GSC30 - 2wd only
  • Engine:  2GR-FSE
  • Type:   Dual Muffler, Quad-tip axle-back system
  • Number of pieces: 2 pcs.
  • Piping:   63.5 mm (2.5")
  • Tip(s):  2x Outer 82.5mm (3.25") / 2x Inner 89mm (3.5")
  • Gasket(s):    re-use/replace OEM gaskets (qty: not included) 
  • Resonator:   n/a
  • Weight:  34.4 lbs  
  • Sound Comparison (SAE J1169) Test:  L86/R85 dB(a)
  • HP:  +10 hp
  • TRQ:  +1  ft-lbs

To provide faster delivery and turn around time; Kami Speed ships products out from different warehouses throughout the United States. Usually averaging 1-4 business days for processing prior to shipping.

Depending on the package, we ship using different carriers according to the item's location, content, and size.

Freight truck & international items, will require up to 7 business days to ship due to size and logistics.

All orders made after 3:00pm ET will be shipped or processed the next business day.

Unless otherwise noted as "In Stock" or exact ETA. Special Order items have an ETA of 5+ weeks.

Orders over $500 will ship insured and over $1,000 with signature and insurance in order to guarantee delivery. Orders over $1000 may not be able to ship to a different address not listed as the billing address or confirm payment address from the form of payment used. Orders with suite numbers, different billing, or apartment numbers will require signature if valued over $100.

All international orders outside of the USA are subject to duties and taxes fees per your countries jurisdiction and determined by customs.
Kami Speed serves the right to ship using an alternative method if we see it fit, in order to expedite shipping and reduce your rate depending on product value.

Processing and logistics on in stock international orders can take up to 7 business days to process & ship.

In stock, non special order items can be returned within 30 days of the product arriving to your house or place of work.
Returns will NOT be accepted on Clearance Items, Final Sales, Special Orders, Opened, Installed, Incomplete, or Otherwise Used Products. In order to initiate a return, an RMA number must be requested and approved via e-mail. All returns will be subject to a 20% restocking fee minus complete shipping cost (roundtrip).

Any processed orders that have not shipped will incur a 6% cancelation refund fee unless the product was not available to ship within a timely manner. No fee will be incurred if used as store credit.

For complete details on our return policy, please see our Help and FAQ link under HELPFUL INFO.

WARNING: Operating, servicing and maintaining a passenger vehicle or off-highway motor vehicle can expose you to chemicals including engine exhaust, carbon monoxide, phthalates, and lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. To minimize exposure, avoid breathing exhaust, do not idle the engine except as necessary, service your vehicle in a well-ventilated area and wear gloves or wash your hands frequently when servicing your vehicle. For more information go to

Customer Reviews

Based on 1 review
J. (New York, NY, US)
Good deal on pricing, back order estimate was accurate

Installed this on a 2017 IS300 AWD with no issues. Backorder said 14+ weeks came in 4, I know the seller has no control over when Greddy ships but it was nice to over estimate than under. Exhaust sounds great and isn’t too loud