★★★★★ 5
Good fit
Good quality and fits perfectly
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Reviewed in the United States on May 3, 2026
GSC P-D 4B11T 23-8N Chrome Polished Exhaust Valve - 30mm Head (+1mm) - SET 8
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
GSC P-D 4B11T 23-8N Chrome Polished Exhaust Valve - 30mm Head (+1mm) - SET 8SKU: 2023 8 GSC P D 4B11T 23 8N Chrome Polished Exhaust Valve 30mm Head (+1mm) SET 8 for 2008 2015 Mitsubishi Lancer Evolution X GSC Power Division exhaust valves deliver reliable performance for the 4B11T engine in 2008 2015 Mitsubishi Lancer Evolution X models. This set of 8 features a 30mm head diameter with +1mm oversize for greater exhaust flow during high RPM and boosted operation. The chrome polished finish and 23 8N stainless steel
Quick Dispatch:
Your GSC P-D 4B11T 23-8N Chrome Polished Exhaust Valve - 30mm Head (+1mm) - SET 8 orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
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Exchange/Return Notes
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- Final sale items are not eligible for returns or exchanges.
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4.4 ★★★★★
Based on 970 reviews
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Product Reviews
★★★★★ 5
Works
Fit my 1996 xr6 150 just fine. Engine runs at correct temperature so they are working as they should.
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Reviewed in the United States on March 13, 2026
★★★★★ 5
Quick delivery
Fit like they should and seems to be working great
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Reviewed in the United States on March 15, 2026
★★★★★ 5
Great product
Great product
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Reviewed in the United States on December 30, 2025
★★★★★ 5
Fit Mercury 150 saltwater 2 stroke great!
These fit my Mercury 150 perfect. Took it out for a test run and engine ran great with no overheating issues.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 26, 2025
