Reviews of MAGNAFLOW catalytic converter

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Based on

14 reviews and 43 votes

43 votes

Average rating ? The average rating is calculated only from review ratings, without votes
3.7
Smell:
2.2
Power:
3.2
Rattle:
3.6
10
1
3

14 reviews

Description
MAGNAFLOW
Italy
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MAGNAFLOW Catalytic converter

Catalysts are another one, I can’t buy magnaflow/walker cats that reasonable anywhere local, I’ll wait if the customer is good with it for the savings.

Pros: reasonable price, customer savings
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MAGNAFLOW Catalytic converter

I recently bought an 86 and got it CA smogged after it sat for 10 years. Did a rebuilt kit for the stock carb, Walker Hitachi DFB306. Had to get a new CA compliant cat which I went with the Magnaflow 339104.

Pros: CA compliant
Vehicle: Suzuki Samurai
Part number: 339104
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MAGNAFLOW Catalytic converter
  • Power:
Rating 5.0

Just installed a rebuilt c60, mwr fly wheel, and exedy clutch. Mwr lightweight alternator pulley and alternator. Kyb suspension. T3 sway bar and control arms. Magnaflow cat. S2000 seats. Breast plate bracing And a bunch of oem replacement parts to pass smog. 2000 mr2 spyder

Vehicle: Toyota MR2
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MAGNAFLOW Catalytic converter

A new catalythic converter typically costs $350 (material + labor). I paid $650 to have both main cats replaced on a Mercedes, which had a 5 liter V8 (much bigger engine than your Kia Soul).

Pros: good price
Vehicle: Mercedes
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MAGNAFLOW Catalytic converter

I have a newer magnaflow on my DC2 and I have no check engine lights. I also have a magnaflow on my golf that replaced a hollowed cat and it kept the old car exhaust smell away for about 5 years before I could faintly smell it again.

Pros: no check engine lights
Cons: faint exhaust smell
Vehicle: Acura Integra
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MAGNAFLOW Catalytic converter
  • Power:
Rating 4.0

I've been running a magnaflow highflow cat on my oil burning honda and it still seems solid for the last 3 years, car doesn't seem choked up by it either...

Pros: still seems solid
Cons: oil burning honda
Vehicle: Honda
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MAGNAFLOW Catalytic converter
  • Rattle:
Rating 5.0

I had AA with Magnaflow 200s for about 30k miles on mine when I had it. UM tune, intake, TT cams. No LC or NLS though. But didn't drive the car like a grandma but no track days. Never heard a rattle.

Pros: no rattle
Mileage: 48280 km
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MAGNAFLOW Catalytic converter
  • Rattle:
Rating 1.0

Last year, i had Argon Addicts make me a HFC pipe, which had the magnaflow 300cell ceramics. Only took 800 miles, yep, 800, for one of them to fail and fall apart. Had noticed the same noise.

Pros: Argon Addicts help
Cons: failed after 800 miles
Mileage: 1287 km
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Reviews of MAGNAFLOW catalytic converter

The brand is registered in Italy. Official website: https://www.magnaflow.com/.

In March 2026, PartReview has a mixed opinion of MAGNAFLOW catalytic converter. PR Score — 74 out of 100, based on 14 reviews and 43 votes. 10 positive reviews, 1 neutral review, 3 negative reviews. Average rating — 3.7 (out of 5). Votes: 32 up, 11 down.

Users also evaluated the qualities of MAGNAFLOW catalytic converter:

  1. Power - car struggles at higher speeds, making passing difficult - rated ambivalently. 3.2 points out of 5.
  2. Rattle - metallic rattling from the exhaust, indicating a broken core - rated positively. 3.6 points out of 5.
  3. Smell - strong sulfur/rotten-egg odor, pointing to catalyst trouble - rated negatively. 2.2 points out of 5.

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