Exhaust› Mufflers and Resonators
Hooker
MUFF,4" MAXIMUM FLOW CTR
SKU: H00I 21609HKR
Moderate — 2–4 hours
Description
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 21609HKR |
Videos
LS 3” Hooker Exhaust | 70-74 Camaro/Firebird
69 Chevy Custom/10 with 388 sbc. Hooker maxflow mufflers.
Hooker Header Aero Chamber Muffler (Install, Sound Comparison, and Review)
Hooker Maximum Flow sound on Hawk's 4" Sinister exhaust, 383 SBC.
Pontiac G8 GT with HOOKER Max Flow Mufflers
1963 Chevy Belair Hooker Aero Chamber exhaust
Hooker max flow muffler flow test
Hooker Maxflow 4" Ls1
Lincoln Mark VII LSC 5.0 w/ Hooker Max Flow Mufflers & BBK O/R H-pipe
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