cat-back

Flowmaster 817720 - Force II Crossmember-Back Exhaust System

rating-star review rating-star review 1rating-star review 2rating-star review 3rating-star review 4

$790.00

Unavailable

This product is currently unavailable.

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

Matthew Marchant

160

Matthew Marchant
2007 GMC Sierra 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?
price 0.00 got it while i was working for a quick lube guy brought it in and wanted the stock system
View on Matthew's build
Austin Wartko

52

Austin Wartko
1999 BMW 3 Series
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
View on Austin's build
Allen Griesemer

67

Allen Griesemer
2005 Audi S4
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
View on Allen's build
Trevor Anderson

13

Trevor Anderson
2001 Ford Ranger
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?
Performance and sound
Is this your first time buying from this brand? Did you consider other brands?
Yes, first time
Was it easy to install? Any installation tips that will help others?
Professionally installed
Once you've had a chance to use the product, did it meet your expectations?
It sounds way better than I expected but I can’t fell a difference performance wise
View on Trevor's build
product page reviews icon 0product page reviews icon 1product page reviews icon 2product page reviews icon 3product page reviews icon 4
Was it easy to install? Any installation tips that will help others?
Easy to install with the right tools
View on Al'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.

shipping-worldwide from warehouse

we ship worldwide!

Based in California with 3 warehouses across the country, we’re sending out shipments everyday of the week, even Saturdays. Because your next mod shouldn’t have to wait.

+ FREE GROUND SHIPPING ON U.S. ORDERS OVER $99
Globe international shipping icon
Have a question? Ask an Expert!

Finding the best parts can be tricky

- but not to worry! Our team of experienced American Muscle, JDM, Euro, and off-road tuners are ready to answer your questions (as long as we’re not in the garage wrenching on our own builds).

Decorative testimonal quote icon

What do you get when you mix Facebook, Amazon, and your favorite online car forum? You get Wheelwell.com.

undefined supporting their testimonial

Hot Rod Magazine

Decorative testimonal quote icon

Wheelwell helps you organize all your stuff for your car, I’ve loaded all my cars on Wheelwell and you can see all the parts I’ve put in them and that may help you make a decision with your own build.

Matt Farah supporting their testimonial

Matt Farah

The Smoking Tire / The Drive

Decorative testimonal quote icon

This is an awesome new site where enthusiasts can get together and figure out what products work best on their ride.

undefined supporting their testimonial

The Truck Show Podcast