SKU: 41695491157

Supertech TEVN-1011 - Supertech Performance Valves - Toyota MR2/3SGTE Exhaust Valve 29.50x5.97x99.50mm/

Sale price$19.71 Regular price$21.90
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Description

Supertech TEVN-1011 - Supertech Performance Valves - Toyota MR2/3SGTE Exhaust Valve 29.50x5.97x99.50mm/Supertech TEVN 1011 Supertech Performance Valves Toyota MR2 3SGTE Exhaust Valve 29. 50x5. 97x99. 50mm Supertech valves are the best on the market, made from one piece of forged stainless steel for the ultimate in strength and durability. Supertech valves go through a special heat treatment process that obtains the right amount of harness for each engine to ensure the ultimate valve for your performance motor. Supertech offers their valves in either

Supertech TEVN-1011 - Supertech Performance Valves - Toyota MR2/3SGTE Exhaust Valve 29.50x5.97x99.50mm/

Supertech valves are the best on the market, made from one piece of forged stainless steel for the ultimate in strength and durability. Supertech valves go through a special heat treatment process that obtains the right amount of harness for each engine to ensure the ultimate valve for your performance motor. Supertech offers their valves in either chrome coating, used in high performance valves, or hardened black nitrided which is most popular in European and Japanese motors.

Supertech High Performance Race Engine Valves features:

  • The microhardness is higher than the stainless steel base material, keeping good ductility beneath the hard nitrided layer (microhardness is 800HV minimum)
  • Surface finish is smoother than with chromed stems, having less friction between stem and guide.
  • Valve seat surface is harder with the nitrided layer, lasting longer with lead free fuels, alcohols, nitro or other "explosive" mixes. Matches any kind of seats (nodular iron seats, steel powder metal seats, hard aluminum-copper seats or beryllium copper seats).
  • Higher rpm's engines take full advantage of all previous features. The higher the engine speed the bigger the power loss due to internal engine friction! The black nitride layer reduces this power loss due to less valve-guide friction.
  • The nitrided layer is adhered to the base material at a microscopic level, so does not"flake" or brake when the valves bend due to impacts with the pistons.
  • The Black Nitride applies to the whole valve while the chrome coating is only applied to the stem.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 41695491157

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4.3 ★★★★★
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Verified Purchase
judith stevens
Pawtucket, US
★★★★★ 1
Some of the components are plastic
This is not a heavy duty application what so ever . One of the flanges broke . We do not recommend this product
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 5, 2024
K
Verified Purchase
Kimberly matthews
Omaha, US
★★★★★ 2
Quality control lacking
One tee conector was missing. Nothing avaliable locally that fits.
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Reviewed in the United States on July 13, 2025
A
Verified Purchase
Alexandra
Waukegan, US
★★★★★ 1
It doesn’t stay in
The pipe keeps coming out. Not worth the money. Not sturdy to hold a top table.
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Reviewed in the United States on February 20, 2024
E
Verified Purchase
Eric
Natrona Heights, US
★★★★★ 2
Good finish, poor hardware.
Set screws are poor quality and are sometimes powdercoated on the exposed threads. Leads to striped hex sockets and inability to tighten properly. Durable finish as evidenced by no visible damage after throwing parts across the shop in frustration. Ended up running self tapping screws thru parts to complete assembly.
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Reviewed in the United States on February 26, 2024
C
Verified Purchase
Carl L. Bradley
Whiting, US
★★★★★ 1
Kinda flimsy…
Thought the assembly was metal, it’s some kind of PVC.
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Reviewed in the United States on September 22, 2025

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