Price Match Guarantee 
Free Shipping
Out of stock
Flowmaster 2.5 IN(O)/OUT(C) 40 Series DF Muffler - 942541
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
Flowmaster
SKU:
FLO942541
|
- UPC:
- 700042015528
$149.95
$168.95
(You save
$19.00
)
Other Flowmaster kits for this car
Fits these vehicles
- 1977-1982 Chevrolet CorvetteBase
- 1974 Chevrolet CorvetteBase
- 1982 Chevrolet CorvetteCollector's Edition
- 1978 Chevrolet CorvetteIndianapolis 500 Pace Car, Silver Anniversary Edition
- 1976 Chevrolet CorvetteStingray
- 1991 Chevrolet S10Baja
- 1998-2002 Chevrolet S10Base
- 1983-1993 Chevrolet S10Base
- 1988-1990 Chevrolet S10Durango
- 1983-1986 Chevrolet S10Durango
- 1992-1993 Chevrolet S10EL
- 1998-2002 Chevrolet S10LS
- 1998 Chevrolet S10SS
- 1983-1989 Chevrolet S10Sport
- 1983-1992 Chevrolet S10Tahoe
- 1999-2002 Chevrolet S10Xtreme
- 1998-2002 Chevrolet S10ZR2
- 2002 Chevrolet S10ZR5
- 1986-1989 Dodge D100Custom
- 1979-1992 Dodge D150Base
- 1982-1983 Dodge D150Miser
- 1990-1991 Dodge D150S
- 1981-1992 Dodge D250Base
- 1980 Dodge D300Base
- 1981-1992 Dodge D350Base
- 1990-1991 Dodge DakotaBase, LE, S, SE, Sport
- 1986-1989 Dodge W100Custom
- 1979-1992 Dodge W150Base
- 1990-1991 Dodge W150S
- 1981-1992 Dodge W250Base
- 1981-1992 Dodge W350Base
- 1997-1998 Ford F-250Base
- 1995-1996 Ford F-250Eddie Bauer
- 1997-1998 Ford F-250Lariat
- 1995-1996 Ford F-250Special
- 1994-1998 Ford F-250XL, XLT
- 1997 Ford F-350Base
- 1995 Ford F-350Eddie Bauer
- 1995-1996 Ford F-350Special
- 1994-1997 Ford F-350XL, XLT
- 1979-1983 Jeep CJ5Base
- 1979-1980 Jeep CJ5Golden Eagle
- 1980-1983 Jeep CJ5Laredo
Part details
- Part number
- FLO942541
- Manufacturer part number
- 942541
- UPC
- 700042015528
- Brand
- Flowmaster
- Part type
- Muffler
- Special order
- Yes — ordered in for you; allow extra time
- Instructions
- Installation instructions (PDF)
- Material
- Aluminized steel
Installation guide (from Flowmaster)
Hosted by Flowmaster. Follow the maker's instructions and torque specs.
- Box size:
- 9.90 × 4.60 × 20.60 (in)
Finance it — pay over time
Bad credit or no credit? No problem. Lease-to-own with Snap Finance: no credit needed, approvals up to $5,000, as low as /week. Get started
Low monthly payments
Affirm, Klarna or PayPal Pay Later: see your exact plan at checkout. Checking won’t affect your credit score.
Bad credit or no credit? No problem. Lease-to-own with Snap Finance: no credit needed, approvals up to $5,000, as low as /week. Get started
- Affirm
- Klarna
- PayPal Pay Later
- Snap Finance
📧 Get Fitment Help
Verify parts fit & get product recommendations
Complete the job
Read before you buy
-
-
Out of stock
-
Out of stock
-
Out of stock
This two chamber design incorporates Flowmaster's Delta Flow® technology. The Delta deflectors generate increased scavenging for better performance and reduced interior sound. Milder exterior tone and reduced interior resonance over standard 40 series. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
40 Delta Flow® - 2.50 Offset In / 2.50 Center Out - Aggressive Sound
Flowmaster 40 Series Delta Flow Chambered Muffler
- Excellent Street/Strip and Off Road application
- Durable fully welded 16 gauge aluminized steel
- Race proven Delta Flow technology
- No internal packing to blowout
- Clearance Item:
- N
- LTL:
- N
- MPN:
- 942541
- Proposition 65:
- N
- Special Order:
- Y
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
Flowmaster
Flowmaster 2.5 IN(O)/OUT(C) 40 Series DF Muffler - 942541
Flowmaster 2.5 IN(O)/OUT(C) 40 Series DF Muffler - 942541 FAQ
It is listed for: 1977-1982 Chevrolet Corvette; 1974 Chevrolet Corvette; 1982 Chevrolet Corvette and more (see the full list above). Pick your vehicle on this page to check your exact year and trim.
The maker's installation guide is on this page — see Installation guide under the part details for the step-by-step and the torque figures. Work on level ground with the car properly supported, and torque every fastener to the maker's figure. If the job is beyond your tools, any shop that does this kind of work can fit it.
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: mufflers
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.