Dynomax 17666 Exhaust Muffler - Right
OE Quality 60-Day Returns
Dynomax
 Super Turbo Direct Fit

Dynomax 17666 Exhaust Muffler - Right

Brand Dynomax 17666
Position Right
Outlet Outside Diameter 2.5
Universal Or Specific Fit Specific
Shape Oval
Grade Type Performance
Inlet Inside Diameter 2.25
Body Width 9.75
Inlet Quantity 1
Outlet Quantity 1
Reversible No
Tunable No
Overall Length 21.25
Automotive Item Grade High performance part
Body Height 4.25
Body Height 4.250 in.
Body Length 14
Body Length 14.000 in.
Body Material Steel
Body Width 9.750 in.
Finish Aluminized
Fitment Direct oe replacement
Flow Director Yes
Inlet 1 Inside Diameter 2.25
Inlet 1 Type Pipe connection
Inlet Configuration Offset
Inlet Connection Type Pipe
Inlet Diameter Designation Inside diameter
Inlet Inside Diameter 2.250 in.
Inlet Offset 2.875
Inlet Position Center
Inlet Quantity 1
Product line Super Turbo Direct Fit
Fits Chevrolet and Pontiac · 27 vehicles

Direct OE replacement. Specific-fit muffler installs with no guesswork.

Flow director design. Channels exhaust flow and reduces turbulence.

Fiberglass matting. Helps absorb resonance for a mellow performance tone.

$112.18Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.

Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Order total $112.18
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.
Not what you need? See all Exhaust Muffler options

Dynomax Super Turbo Direct Fit Muffler

The Dynomax Super Turbo Direct Fit muffler is a performance exhaust replacement built for specific vehicle applications. Part number 17666 uses an oval aluminized steel body, a 2.25-inch inlet, and a 2.5-inch outlet to support smoother exhaust flow while maintaining a mellow performance tone.

Compatible With 1997-2005 Pontiac Grand Prix, right; 2000-2005 Chevrolet Monte Carlo, right; and 2004-2005 Chevrolet Impala, right. This direct OE replacement is shaped for the listed applications and is part of the Dynomax Super Turbo Direct Fit line, which focuses on application-specific exhaust fitment and controlled sound.

Key Features

  • Part number 17666 for application-specific exhaust replacement
  • Direct fit design for listed right-side vehicle applications
  • Oval muffler body with aluminized steel construction
  • 2.25-inch inlet and 2.5-inch outlet sizing
  • Internal flow director design to help reduce turbulence
  • Large internal flow tubes to support exhaust flow and lower backpressure
  • Fiberglass matting to reduce interior resonance
  • Mellow performance tone for street-driven use

Product Details

The Dynomax Super Turbo Direct Fit line is engineered around vehicle-specific exhaust routing, making it a practical choice for replacing a worn muffler on the Pontiac Grand Prix, Chevrolet Monte Carlo, or Chevrolet Impala listed above. The flow director layout channels exhaust through the muffler more efficiently, while the internal tube design and fiberglass matting help balance flow, sound control, and resonance reduction. Part number 17666 is built with a steel body and aluminized finish for standard exhaust system service.

Common Exhaust Issues It Can Address

  • Excessive exhaust noise from a damaged or rusted muffler
  • Interior drone or resonance from a failing muffler core
  • Restricted exhaust flow caused by internal muffler deterioration
  • Backpressure concerns related to an aging exhaust component
  • Fitment problems when replacing a factory-style right-side muffler

Installation Notes

Verify the inlet and outlet diameters, overall length, and right-side fitment before installation. This muffler is listed as a specific-fit, direct OE replacement part, so matching the vehicle application is important for proper alignment and exhaust routing. Professional exhaust installation is recommended to confirm hanger position, pipe connection, and clearance around the body and suspension.

Quality Assurance

Dynomax Super Turbo mufflers are built around application-specific fitment and controlled-flow internal design. Part number 17666 is intended for the listed Pontiac Grand Prix, Chevrolet Monte Carlo, and Chevrolet Impala applications, with construction and sound characteristics aligned to performance-oriented exhaust replacement needs.

Related reading

This part fits 27 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelLitersCylindersPositionNotes
2005ChevroletImpalaSS3.8LV6RightSuper Turbo Direct Fit
2005ChevroletMonte CarloSS3.8LV6RightSuper Turbo Direct Fit
2005PontiacGrand Prix—5.3LV8RightSuper Turbo Direct Fit
2005PontiacGrand PrixGTP3.8LV6RightSuper Turbo Direct Fit
2004ChevroletImpalaSS3.8LV6RightSuper Turbo Direct Fit
2004ChevroletMonte Carlo—3.8LV6RightSuper Turbo Direct Fit
2004PontiacGrand PrixGTP3.8LV6RightSuper Turbo Direct Fit
2004PontiacGrand PrixGT13.8LV6RightSuper Turbo Direct Fit
2004PontiacGrand PrixGT23.8LV6RightSuper Turbo Direct Fit
2003ChevroletMonte Carlo—3.8LV6RightSuper Turbo Direct Fit
2003PontiacGrand PrixGTP3.8LV6RightSuper Turbo Direct Fit
2003PontiacGrand PrixGT3.8LV6RightSuper Turbo Direct Fit
2002ChevroletMonte Carlo—3.8LV6RightSuper Turbo Direct Fit
2002PontiacGrand PrixGTP3.8LV6RightSuper Turbo Direct Fit
2002PontiacGrand PrixGT3.8LV6RightSuper Turbo Direct Fit
2001ChevroletMonte Carlo—3.8LV6RightSuper Turbo Direct Fit
2001PontiacGrand PrixGTP3.8LV6RightSuper Turbo Direct Fit
2001PontiacGrand PrixGT3.8LV6RightSuper Turbo Direct Fit
2000ChevroletMonte Carlo—3.8LV6RightSuper Turbo Direct Fit
2000PontiacGrand PrixGTP3.8LV6RightSuper Turbo Direct Fit
2000PontiacGrand PrixGT3.8LV6RightSuper Turbo Direct Fit
1999PontiacGrand PrixGTP3.8LV6RightSuper Turbo Direct Fit
1999PontiacGrand PrixGT3.8LV6RightSuper Turbo Direct Fit
1998PontiacGrand PrixGTP3.8LV6RightSuper Turbo Direct Fit
1998PontiacGrand PrixGT3.8LV6RightSuper Turbo Direct Fit
1997PontiacGrand PrixGTP3.8LV6RightSuper Turbo Direct Fit
1997PontiacGrand PrixGT3.8LV6RightSuper Turbo Direct Fit