Moderate — 2–4 hours
Description
MIA's Description
With a 2.5-inch inlet and a 2.5-inch outlet, the Maximum Flow muffler boasts a 99% exhaust flow rate, reportedly delivering more horsepower and torque compared to a 2.5-inch open pipe setup. It utilizes high-temperature packing material for durability.
Fitment
Fitment Guaranteed
Don’t gamble
on fit.
Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.
Available on iOS & Android
Specifications
| Brand | Hooker |
| Part Number | H00I 21614 |
Videos
Hooker Header Aero Chamber Muffler (Install, Sound Comparison, and Review)
1963 Chevy Belair Hooker Aero Chamber exhaust
LS 3” Hooker Exhaust | 70-74 Camaro/Firebird
2016 Silverado Hooker Blackheart Exhaust
69 Chevy Custom/10 with 388 sbc. Hooker maxflow mufflers.
Pontiac G8 GT with HOOKER Max Flow Mufflers
Hooker max flow muffler flow test
Hooker Maximum Flow sound on Hawk's 4" Sinister exhaust, 383 SBC.
Hooker Muffler Tech Talk
Hooker vs. Magnaflow
Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
View Full Return Policy