MagnaFlow Conv Univ 2 - 91004
This wheel on real customer builds
See this part on video
Made by our team · tap a video to play it
📧 Get Fitment Help
Verify parts fit & get product recommendations
- UPC:
- 841380011091
- Availability:
- Regularly stocked product
- 1975-1977 Alfa Romeo AlfettaGT, Sport
- 1985-1989 Alfa Romeo SpiderGraduate
- 1986-1989 Alfa Romeo SpiderQuadrifoglio
- 1980-1989 Alfa Romeo SpiderVeloce
- 1975-1978 Alfa Romeo SpiderVeloce
- 1978-1979 American Motors ConcordBase
- 1979 American Motors ConcordDL, Limited
- 1980 American Motors EagleLimited
- 1977 American Motors PacerBase
- 1982-1995 Buick CenturyCustom
- 1984 Buick CenturyEstate
- 1985-1989 Buick CenturyEstate Wagon
- 1982-1993 Buick CenturyLimited
- 1984 Buick CenturyOlympia Limited
- 1991-1995 Buick CenturySpecial
- 1985 Buick ElectraLimited, Park Avenue, T-Type
- 1988-1995 Buick RegalCustom
- 1989 Buick RegalGran Sport
- 1988-1993 Buick RegalLimited
- 1987-1989 Buick SkyhawkCustom
- 1984 Buick SkyhawkCustom
- 1987 Buick SkyhawkLimited
- 1984 Buick SkyhawkLimited
- 1988-1989 Buick SkyhawkSE
- 1987 Buick SkyhawkSport
- 1984-1987 Buick SkyhawkT-Type
- 1990-1991 Buick SkylarkBase
- 1982 Buick SkylarkBase
- 1993-1995 Buick SkylarkCustom
- 1983-1991 Buick SkylarkCustom
- 1994-1995 Buick SkylarkGran Sport
- 1990-1991 Buick SkylarkGran Sport
- 1993-1995 Buick SkylarkLimited
- 1982-1989 Buick SkylarkLimited
- 1990-1991 Buick SkylarkLuxury Edition
- 1982 Buick SkylarkSport
- 1986-1987 Buick SomersetCustom, Limited
- 1986 Buick SomersetT-Type
- 1985 Buick Somerset RegalBase
- Part number
- MAG91004
- Manufacturer part number
- 91004
- UPC
- 841380011091
- Brand
- Magnaflow
- Part type
- Catalytic Converter
- CARB
- Not for sale or use in California (no CARB EO)
- Box size:
- 7.00 × 4.70 × 13.80 (in)
Complete the job
Read before you buy
- Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
- Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off
- Expertly Formulated Catalyst Blend Maximizes Efficiency Ensuring Optimal Emissions To Keep Your Check Engine Light Off
- High Strength 16 Gauge 409 Stainless Steel Tubing For Exceptional Corrosion Resistance And Maximum Service Life
- Compact, lightweight construction enables installation in confined areas, welding is required
- Compact/Lightweight Construction Enables Installation In Confined Areas/Welding Is Required
- Your Trusted Source For EPA-Compliant Catalytic Converters
- Durable 308 stainless steel MIG welds
- LTL:
- N
- MPN:
- 91004
- Proposition 65:
- N
- Special Order:
- N
- Clearance Item:
- N
PRODUCT REVIEWS (0)
Overall Rankings
Have you tried this product?
WRITE A REVIEWNo reviews for this product yet. Be the first to write a review!
Write a Review
Magnaflow
MagnaFlow Conv Univ 2 - 91004
MagnaFlow Conv Univ 2 - 91004 FAQ
It is listed for: 1975-1977 Alfa Romeo Alfetta; 1985-1989 Alfa Romeo Spider; 1986-1989 Alfa Romeo Spider and more (see the full list above). Pick your vehicle on this page to check your exact year and trim.
No — this part has no CARB Executive Order, so it is not for sale or use in California or on vehicles registered there.
The sound depends on the muffler and resonator design. A cat-back with a resonator stays closer to stock; an axle-back changes the tone more than the volume. Look for the maker's sound notes or a clip on this page.
Cat-back and axle-back systems bolt to the factory connection points. Headers and downpipes replace the factory pipe at the engine and may need new gaskets and hardware; see What's in the box.
A cat-back or axle-back needs no tune. Headers and downpipes change what the oxygen sensors see, so many cars need a tune or a sensor spacer to avoid a warning light.
Drone depends on the muffler and resonator design and your car's gearing. Systems with a resonator or an X-pipe drone less, and the maker notes when a system is built to be quiet at cruise.
An axle-back or cat-back is a jack-stands job with the right sockets and penetrating oil for rusty bolts. Headers and downpipes take more room and time, and a lift helps.
Most systems include the clamps and gaskets they need; see What's in the box. Reuse a factory gasket only if it is undamaged.
Yes — monthly options show right under the Add to Cart button. Affirm, Klarna, PayPal Pay Later and Snap Finance are offered at checkout, and checking what you qualify for does not affect your credit score.
Install and care: catalytic converters
Before you start
- Soak the factory flange bolts and hangers in penetrating oil the day before.
- Lay out the sections and clamps against What's in the box before anything goes under the car.
Do
- Hang the whole system loosely first, line it up, then tighten the clamps from the front back.
- Check for leaks at every joint with the engine running before the final tightening.
Don't
- Don't tighten any clamp fully until the whole system hangs straight.
- Don't reuse a crushed or torn factory gasket.
Price Match Guarantee
Free Shipping
LOW STOCK (7 units)