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Flowmaster Direct-Fit Catalytic Converters (Federal EPA-Compliant) Main Converter: Y-Pipe Assembly - 2010021

51 Reviews
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Free Shipping - Ships by 06/05/2023
  • Part #: 2010021
  • Details:
    • Inlet: 3 in.
    • Outlet: 3 in.
    • Inlet connection: Flanged
    • Outlet connection: Flanged
    • Not air tube kit adaptable
    • Oxygen senor location: Pre catalyst
  • Not CARB emission certified
  • Cannot be shipped to California and other states adopting California emission standards
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Product Info
  • Be aware that many vehicles have more than one catalytic converter. Enter your vehicle information above to see available options.
  • Drive greener – and speedier – with the help of a Flowmaster Direct-Fit Catalytic Converters (Federal EPA-Compliant)
  • Custom-built to directly replace your factory catalytic converter, with little or no modification
  • Packed with oversized substrates and tons of precious metals to strip away more noxious fumes from your tailpipe
  • Optimal internal construction reduces nearly all resistance
  • Encased inside a fully-welded stainless steel body for lasting durability
  • Equipped with a sturdy heat shield for extra protection
  • Meets all Federal EPA emissions standards and is Federal EPA Compliant – not for use in California
  • Your Direct-Fit Catalytic Converter is covered by a 25,000-mile emissions warranty and a 50,000-mile/5-year casing warranty
Just because you love the environment doesn’t mean you can’t also love throwing the hammer down. Fortunately, when you bolt on a Direct-Fit Flowmaster Catalytic Converter (Federal EPA-Compliant), you can stay green while still redlining your speed fiend.

Every Flowmaster cat is engineered for maximum pollution control and exhaust flow. Built with oversized ceramic substrates, these cats hold huge amounts of precious metals to strip away more toxins from your tailpipes. At the same time, their fast-flowing design helps accelerate exhaust flow for uncompromised performance.

Direct-Fit Flowmaster Catalytic Converters are custom-designed to mount in place of your factory gear. They’re built to last from a fully-welded stainless steel casing and come with an integrated heat shield for maximum durability. Better still, your Flowmaster High-Flow Catalytic Converter (Federal EPA-Compliant) carries a 25,000-mile emissions warranty and a 50,000-mile/5-year casing warranty.


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  • Laws regarding replacement of catalytic converters are strict and vary by area. Check your local laws for regulations covering catalytic converter installation and replacement.
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Customer Reviews

Average Rating
Ease of Installation
51 Customer Reviews
5 Star
34 (67%)
4 Star
12 (24%)
3 Star
1 (2%)
2 Star
4 (8%)
1 Star
0 (0%)


Perfect fit easy to install liked the split portion of y pipe from right to left made it easier to hook up to headers I installed
Posted By William T (ONALASKA, WI) / February 4, 2016
1995 Chevy C/K 1500

1995 Tahoe Converter Replacement

I got this converter because my stock one from 1995 just wasn't cutting it anymore. The old one was rusting through and rattled, and I had good luck with the Super 50 Delta Flow, so I figured I might as well buy from the same company (made in USA is also a plus). It arrived on time and seemed to be very high quality. I installed it myself at the school's shop, but I'd highly recommend taking it to professionals...no more rattle and feels like the exhaust flows better now. I would buy again!
Posted By Steven C (MANKATO, MN) / January 11, 2015
1995 Chevy Tahoe

Not quite a "direct-fit"

It looks good sounds good but the down pipe from the left side was 2 inches too long, the exit pipe from the cat was 1 1/2 inches too long, there wasnt any bolts for the cat to the muffler pipe, and there wasnt a plug for the O2-sensor hole.
Posted By Austin P (FARWELL, MN) / January 5, 2015
2003 Chevy Silverado

passed emissions

The angle was off a little. I made it work but connecting to my exhaust was/is causing vibration against the frame.
Posted By Jorge R (Farmersville, TX) / November 6, 2014
2020 Honda Pilot


Installed this on a 1994 GMC P/U fits perfect sounds great easy to install. Already have cat-back Flowmaster system on.Great price,great quality!
Posted By Robert V (Oakdale, PA) / January 14, 2014
1994 GMC C/K 1500

Great fit

This part bolted right in no problem. Did the install in 30 min on my driveway with one socket wrench and a 22mm o2 sensor wrench. Best thing was the low low price for a 49 state converter. Only blem with my part was a small dent caused by the bender dye in my rt side pipe flair. It was easy to tap out with a ball peen hamer.
Posted By Kevin C (MISSION VIEJO, CA) / October 24, 2013
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