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Flowmaster 817720 - Force II Crossmember-Back Exhaust System

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$790.00

Discontinued

This product has been discontinued by the manufacturer.

Check to see if this fits your vehicle

This part fits

  1. 1973 Chevrolet Corvette 7.4L V8 cid:454 cc:7439
  2. 1973 Chevrolet Corvette 7.4L V8 cid:454
  3. 1973 Chevrolet Corvette 7.4L V8 cid:454 cc:7441
  4. 1972 Chevrolet Corvette 7.4L V8 cid:454 cc:7441
  5. 1972 Chevrolet Corvette 7.4L V8 cid:454
  6. 1972 Chevrolet Corvette 7.4L V8 cid:454 cc:7439
  7. 1971 Chevrolet Corvette 7.4L V8 cid:454 cc:7441
  8. 1971 Chevrolet Corvette 7.4L V8 cid:454
  9. 1971 Chevrolet Corvette 7.4L V8 cid:454 cc:7439
  10. 1970 Chevrolet Corvette 7.4L V8 cid:454 cc:7439
  11. 1970 Chevrolet Corvette 7.4L V8 cid:454
  12. 1970 Chevrolet Corvette 7.4L V8 cid:454 cc:7441
  13. show all...
Authorized Dealer

About this product

Part #: 817720

Flowmaster's Force II Cross Member Back system for the 1970-1973 Chevrolet Corvette is perfect for the person looking for a moderate exterior and mild interior exhaust tone, with all of the performance benefits that you would expect from Flowmaster. This bolt-on DOR (Dual Out the Rear) system for the 454ci V8 models (or high HP small blocks) features specially tuned stainless steel 50 Series Delta Flow mufflers, a Scavenger X-pipe assembly and 2.50" 409S stainless steel tailpipes. Like all Flowmaster systems the pipes are all mandrel bent to reduce any restrictions and maximize performance. The system finishes with 2.50" polished 304S stainless steel tips that exit within the factory cutout bezels. The exhaust system is manufactured in the USA and is covered by Flowmaster's Lifetime Limited Warranty. Designed for an easy fit, this system includes all necessary parts and hardware for installation.

More Details

2WD/4WDRWD
Bullet Point #1Stainless Steel Construction
Bullet Point #2Dyno Tuned For Maximum Performance
Bullet Point #3Patented Delta Flow Technology
Bullet Point #4Lifetime Limited Warranty
Catalytic Converter IncludedNo
Exit PositionDual Rear Exit
Heat ShieldNo
Heat Shield AttachedNo
Inlet Diameter2.5
Inlet Inside Diameter (in.)2.5
MaterialStainless Steel
Mount TypeFlanged
Muffler Count2
Muffler Quantity2
Muffler TypeWelded Baffle
ShapeOval
Single DualDual
System TypeCrossmember Back
System TypeCrossmember-back
Tip CutAngle
Tip Diameter (in)3.00 x 5.50
Tip Edge StyleRolled
Tip FinishPolished
Tip Length (in.)7
Tip MaterialStainless Steel
Tip ShapeRectangle
Tip TypeSingle Wall
Tubing Diameter2.50 in.
Tubing Diameter (in)2.5
Additional Documents
  1. Certificate of Originpdf
  2. Installation Instructionspdf
  3. Warrantypdf

See what our community says about flowmaster products

Brandon Beres

29

Brandon Beres
2014 Ram 1500
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What made you choose this particular product?
The sound is amazing
What were you trying to accomplish by adding this product?
Improved appearance
View on Brandon's build
product page reviews icon 0product page reviews icon 1product page reviews icon 2product page reviews icon 3product page reviews icon 4
What made you choose this particular product?
Needed to replace stock muffler and delete resonator
View on Samuel's build
Jeremy Henson

67

Jeremy Henson
2019 Ram 1500
product page reviews icon 0product page reviews icon 1product page reviews icon 2product page reviews icon 3product page reviews icon 4
What made you choose this particular product?
sound,performance
What were you trying to accomplish by adding this product?
aggressive sound
Was it easy install? Any installation tips that will help others?
very easy.
Once you’ve had a chance to use the product, did it meet your expectations?
yes
View on Jeremy's build
product page reviews icon 0product page reviews icon 1product page reviews icon 2product page reviews icon 3product page reviews icon 4
What made you choose this particular product?
Sound
What were you trying to accomplish by adding this product?
Muscle sound
Was it easy install? Any installation tips that will help others?
Yes
Once you’ve had a chance to use the product, did it meet your expectations?
I think three inch would have a better sound.
View on Julio's build
product page reviews icon 0product page reviews icon 1product page reviews icon 2product page reviews icon 3product page reviews icon 4
What made you choose this particular product?
Cheap and effecfive. Won’t wear out.
Is this your first time buying from this brand? Did you consider other brands?
No.
Was it easy to install? Any installation tips that will help others?
Cut out the old, clamped in the new.
Once you've had a chance to use the product, did it meet your expectations?
Works fine. Sounds decent.
View on Mason's build
California prop 65 warningWARNING: Cancer and Reproductive Harm www.p65warnings.cs.gov

*Some manufacturer restrictions apply.

About Flowmaster

Manufacturer of performance exhaust systems, mufflers, cold air intakes, turbo boost modules, catalytic converters, race mufflers, headers and numerous exhaust accessories for late model cars, trucks, off-road, Jeeps, SUV’s, classic muscle cars, powersports vehicles and more. Flowmaster® gives you lots of exhaust choices with 12 designs of chambered mufflers, 3 styles of our exclusive “laminar-flow” mufflers and a new line of FlowFX “straight-through” performance mufflers, along with 5 sound categories of exhaust systems, giving you the customer, the power to custom tailor the sound of your vehicle whether you prefer mild, moderate or aggressive tones and sound levels.

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