Description
Comparison points and tradeoffs
When comparing Walker 21398 Direct Fit Exhaust Resonator 2.25′ Outlet (ID) 2.25′ Outlet (OD) for Chevrolet Impala with other Resonators options, use this source-backed detail as the primary discriminator: GET MORE MILES FROM YOUR RESONATOR — Engineered to fit, perform and sound like the original system.
Use this second fact to evaluate the tradeoff: GET THE RIGHT PART — Before purchasing, research to ensure that the part will fit your vehicle; enter all vehicle information (year, make, model, engine and trim) for compatibility and check qualifier notes. A third point to compare across alternatives is: Designed to fit, perform and sound like the original system, Walker® resonators use precise tuning technologies to deliver excellent flow characteristics and OE-style sound.
Alternative-selection boundary
Choose an alternative when its stated identifiers, application, package, or specifications better match the requirement; no unverified competitor claim is introduced here.
Complete source-backed product details
Designed to fit, perform and sound like the original system, Walker® resonators use precise tuning technologies to deliver excellent flow characteristics and OE-style sound.
Source product highlights
About this item
- COMPATIBILITY – Fits 2005-2005 Buick LaCrosse; 2006-2006 Buick LaCrosse; 2007-2007 Buick LaCrosse; 2008-2008 Buick LaCrosse; 2009-2009 Buick LaCrosse; 2005-2005 Buick Allure; 2006-2006 Buick Allure; 2007-2007 Buick Allure; 2008-2008 Buick Allure; 2009-200
- GET THE RIGHT PART — Before purchasing, research to ensure that the part will fit your vehicle; enter all vehicle information (year, make, model, engine and trim) for compatibility and check qualifier notes
- INHIBITS CORROSION — Durable aluminized-steel construction and helps inhibit corrosion
- FACTORY SOUND — OE-style louvered tubes (where applicable) help reduce radiated noise for factory-style sound
- FLEXIBLE SOLUTION — Customizable design for easy fitment and may require specialized fabrication and/or welding for installation
- STRONG AND DURABLE — Features thick OE-style flanges, hardware and brackets for strength
- GET MORE MILES FROM YOUR RESONATOR — Engineered to fit, perform and sound like the original system
Sccrvettel82 –
The part arrived as described and was a perfect fit on my 2006 Grand Prix 3.8. It did not require any welding etc. The pipe was packaged well and everything was complete. It was also priced $100 cheaper than my local auto store
suprmrk –
I installed this resonator on my 2005 Chevy Impala with a 3.4L and Base Trim. It was not a smooth install so I thought, maybe I can save someone else some grief with a brief description. I purchased the Resonator,clamp and gasket.The resonator is about 4 inches shorter than the original and the outlet pipe is about 1/4 inch bigger than the exhaust pipe it fits over. I had to buy an adapter with a 2.5 inch I.D. to fit the resonator and 2.250 O.D. to fit over the exhaust pipe. The exhaust pipe is probably metric because it was still small for the adapter. I used a 2.250 exhaust clamp to partially squeeze the adapter down and then switched the clamp to a 2.125 size to finish. Some sealant would have been helpful. The flange bolts on the original resonator are welded on so I had to grind the heads off.
Speaking from direct experience –
Shipping was quick, price was exceptional, and this part played real nice with the rest of thecomponents… everything fit together really well and installation was a breeze !! Wish all repairswere this easy !!
Customer –
Very quiet, perfect fit on my impala. You’ll need to acquire a gasket and bolts separately.
Chris Schafer –
I bought this to finally fix my grand prix resonator. I had been patching the resonator every year with a sheet-metal panel and steel wool (which works well, when clamped on to the old resonator). I installed this in a couple hours, needing to modify the existing exhaust to match the length of this resonator. If you won a sawzall, that is not a big job. Its basically like legos, and should not be something that would scare you off. Cut the exhaust to fit (precision is not really necessary, just get close), and clamp the stuff together. Seriously, if you are buying this as a replacement, your car is probably a hooptie – just fit it in there in an imprecise manner and clamp together. It will be quiet and last longer than your already-well-used-car will. I wish I had done this earlier.
Customer –
Great job super happy with purchase
Customer –
Easy to replace with new middle pipe and muffler
Bob A –
Looks well made, now no leak, exhaust sounds like normal again.
michael –
worked well for 2007 pontiac grand prix, found a shop that was able to weld it into place
Fred Nedow –
Does what it’s supposed to doFast delivery
Brad Bendick –
Easy to install, was about an inch shorter than stock but the exhaust supports made up the slack. Would be nice if it came with the gasket as well. Seems like it should last the rest of the life of the car.
Customer –
Perfect fit
Clint –
Fits like OEM