SKU: 58799636583

BC3101 - Mitsubishi 4G63/Evo Exhaust Valves (30.5mm / STD) - set/8

$171.47 $190.52
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Ships within 48 hours · Estimated delivery Sep 16 - Sep 21

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Description

BC3101 - Mitsubishi 4G63/Evo Exhaust Valves (30.5mm / STD) - set/8BC valves are one piece design with a friction welded Stellite tip for the best possible performance. Every valve is made from premium grade, heat resistant stainless steel material to insure reliability with high boost and or high rpm applications. The undercut stem above the head area not only reduces overall weight for extended rpm potential, but also significantly improves air fuel flow in and out of the combustion chamber. Every valve is fully

BC valves are one piece design with a friction welded Stellite tip for the best possible performance. Every valve is made from premium grade, heat resistant stainless steel material to insure reliability with high boost and/or high rpm applications. The undercut stem above the head area not only reduces overall weight for extended rpm potential, but also significantly improves air/fuel flow in and out of the combustion chamber. Every valve is fully machined and features a swirl polished finish under the head.

Head Dia 30.5mm
Stem Dia 6.54mm
Overall Length 109.6mm
Material Stainless
Valve Type Exhaust / Dished
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
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  • Delivery to the USA:
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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: 58799636583

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4.5 ★★★★★
Based on 5 reviews
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Verified Purchase
Jim Wallace
Carnegie, US
★★★★★ 5
Save some money by doing your own cabin filter change! (You won't notice a difference).
So, one day I was getting an oil change at the dealership, and the associate told me that cabin filter was pretty dirty, which I believed because of the places I take the car, and she said that they could change it while they were finishing up the rest of their inspection, since they already had it apart. I asked her "How much?", and then we both had a laugh when she said "$90." I told her I'd take care of it. It took two days for Amazon to get a replacement filter to me, twenty minutes to watch a You Tube video showing how to replace the cabin filter on my car (I watched it twice), and then about twenty-five minutes to replace the filter itself--I keep a messy glove compartment, so a good portion of the time was loading and unloading that nightmare. In the end, under $15 for the filter, maybe 45 minutes to watch and replace, and the cabin filter hasn't been this good since I first bought the car. This replacement version was as good as the OE filter, fit exactly the same, there's no difference in airflow that I can tell, and so far (6 months later), it seems to be holding up pretty well. We'll see what it is like after a year. I did get the oil changed about a week ago, and the technician didn't raise any alarms about the filter, so everything seems to be working. $90 for a new filter? You can do it yourself cheaper.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 6, 2026
C
Verified Purchase
chad martin
Grantham, US
★★★★★ 4
Fresh Air Upgrade for My 2024 Impreza
Installed this in my 2024 Subaru Impreza, and it fit perfectly—no issues. The air smells noticeably cleaner now, and it took less than 10 minutes to swap out. The carbon and HEPA filtration does a great job clearing out odors, dust, and pollen—definitely an upgrade over the factory filter. The build feels sturdier than the OEM version, though it does have slightly fewer pleats. Might mean it needs replacing a bit sooner, but for the price and performance, I’m fine with that tradeoff. If you’re looking for a quick, affordable way to improve your cabin air, this one’s a solid pick. 
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Reviewed in the United States on June 26, 2025
G
Verified Purchase
Gram21
Grantham, US
★★★★★ 5
Well built, good fit.
I like it so well, I just bought two more to keep on the shelf for when the price doubles. Seems better built than oem, but I don't know how you can judge the filtration; seems good though.
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Reviewed in the United States on May 6, 2026
L
Verified Purchase
LJ
Bozeman, US
★★★★★ 5
Great product
Perfect fit for 21 Cross Trek
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Reviewed in the United States on February 12, 2026
C
Verified Purchase
catspurr
Boise, US
★★★★★ 5
Good Product
Size: (Pack of 1)
Came with all necessary supplies. Seemed to be of good quality and my taco is running well after the oil change. Will buy again.
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Reviewed in the United States on May 16, 2026

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