Description
Comparison points and tradeoffs
When comparing 2.5′ In/Out x 14′ OAL Aero Exhaust Resonator, 4′ Round Body with other Resonators options, use this source-backed detail as the primary discriminator: Category: Replacement Parts / Exhaust & Emissions / Resonators.
Use this second fact to evaluate the tradeoff: Dimensions: 14″ Overall Length x 10″ Body – 2.5″ Inside Diameter Inlet and Outlet x 4″ Round Body Polished “AERO Exhaust” Stamped on this resonator. A third point to compare across alternatives is: Aero resonators are manufactured out of the highest quality T-304 stainless steel with a ceramic packing .
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
The Aero resonators are proven to reduce rasp and drone while withstanding up to 1800 degrees Fahrenheit. Aero resonators are manufactured out of the highest quality T-304 stainless steel with a ceramic packing . Dimensions: 14″ Overall Length x 10″ Body – 2.5″ Inside Diameter Inlet and Outlet x 4″ Round Body Polished “AERO Exhaust” Stamped on this resonator.
Source product highlights
About this item
- Aero Exhaust Resonator AR25 2.5″




Stew –
IT WORKS WELL FOR MY SUPERCHARGED MINI THAT HAS THE RACING HEADER WITHOUT CATALYTIC CONVERTER. THE CAR WAS REALLY LOUD AND RASPY BECAUSE I ALSO HAD AN EXHAUST SYSTEM THAT FLOWED MORE. IT HAS “CIVILIZED” THE NOISE OF THE CAR. THE RASP IS GONE. I DON’T THINK IT ROBBED ANY POWER. IT WAS SUCH A GOOD BUY, I WISH IT COULD BE SEEN. IT IS SMALL ENOUGH FOR MY LITTLE CAR. THE STAINLESS STEEL AND THE WELDS LOOK GREAT.
Steven G. –
wow, superb qualitybeautiful finish and weldsdid some research and found this particular model (AR25) was designed to work with Euro cars and would be perfect for my VW 3.6 VR6 motor so gave it a try even though it only had 1 reviewbased on initial impression, i highly recommend 👍cant wait to get it installed
Andy DeGuzman –
Works great and tone down the rasp on custom exhaust setup.
Twinkle –
Its ok sounds good at start
Johnny –
Just got these and haven’t even got the rest of my exhaust parts yet! Shipping was almost 2 days from purchase(didn’t pay for that). Overall we’ll have to see how good they sound but damn this is NICE quality for the price!(update) finally got these on my car and dang they sound amazing!
Keith leicht –
My car has no cats and I put these on for drone and to quiet it down. It is ridiculously loud but it definitely cut down on the drone It is pretty quiet when cruising at lower RPMs.
Landon M –
Got rid of lots of raspyness on my mazda rx8 and helps a little with drone
CD –
NOT AR25 exhaust. Aero is specifically known for their turbine designed resonator!! This is 100% FAKE. Normal perforated resonator. Might as well buy a cheap vibrant! Very disappointing.