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APEXi N1 Evolution Extreme Exhaust Systems for 2013-2020 GS350 - 164KT207-SS
Part Number: APX-164KT207-SS
APEXi N1 Evolution Extreme Exhaust Systems
Exhaust System, N1-X Evolution Extreme, Cat-back, Dual In/Four Out, Stainless Steel, Natural, Split Rear Exit, Stainless Polished Tips, Lexus, Kit
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Estimated Ship Date: Dec 29, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
164KT207-SS
Part Type:
Product Line:
Summit Racing Part Number:
APX-164KT207-SS
System Material:
304 stainless steel
System Style:
Cat-back
Exhaust Type:
Dual in/Four out
Exit Location:
Split rear
System Finish:
Natural
Catalytic Converter(s) Included:
No
Intermediate Pipe Diameter (in.):
2.38 in.
Muffler Included:
Yes
Muffler Quantity:
Two
Muffler Configuration:
Single inlet/Dual outlet
Muffler Material:
304 stainless steel
Muffler Color:
Polished
Hardware Included:
Yes
Tailpipe Diameter (in.):
2.38 in.
Tip Included:
Yes
Tip Outlet Size (in.):
3.66
Tip Quantity:
4
Tip Shape:
Round
Tip Cut:
Slant
Tip Edge Style:
Rolled edge, single-wall
Tip Material:
304 stainless steel
Tip Color:
Burnt
Remanufactured:
No
Quantity:
Sold as a kit.
Notes:
Requires aftermarket rear bumper lip spoiler for fitment compatibility or modification of OEM factory rear lower diffuser panel.
APEXi N1 Evolution Extreme Exhaust Systems
APEXi N1 Evolution Extreme Exhaust Systems are based on the proven performance basics of the N1 muffler—which emphasizes optimum exhaust efficiency utilizing a straight-thru layout design. They are equipped with an internal hybrid silencer uniting power and free-flowing characteristics with effective functional sound resonance. A newly adopted muffler tip completes the tail-end of the exhaust that serves both purposes of function and form. Many options are available, including muffler quantity, inlet/outlet quantity, and tip material/shape/size. Order the system recommended for your vehicle.
Additional details:
* High level of quality using TIG-welded SUS304 stainless steel, uniting quiet performance with high-power performance gains
* Matched and manufactured for select chassis
* Patented Megaphone piping structure to produce excellent torque and throttle response throughout the powerband. This piping design allows for a swirling exhaust gas flow effect that has for years produced proven results
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