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Vehicle Info NeededHOOKER HEADERSPART NUMBER: 520-11331
Slip-On Collector Extension Turnouts (2) 3" I.D. x 12" Long Extensions
$8899
Ships on Sep 15, 2026
Lowest Price Guarantee
Slip-On Collector Extension Turnouts
- Slip-On Collector Extension Turnouts
- (2) 3" I.D. x 12" Long Extensions
- (8) Locking Tabs
- All Required Bolts, Washers, and Nuts
- Contains 2 Extensions
- 8 Locking Tabs
- All Required Bolts And Nuts
- The Hooker Slip-On Collector Extension Turnouts are designed to direct exhaust gas fumes away from the car on circle track and drag race headers that do not have a 3-bolt flange. They can be used anywhere a turnout or turndown is needed on 3'', 3.5'' or 4'' outside diameter pipe! Each kit includes two 12'' long extensions with 8 locking tabs and all necessary hardware required for installation!
Part TypeExhaust Pipe Extension
Product LineHooker Slip-On Collector Extension Turnouts
BrandHOOKER HEADERS
Package Height6.8
Package Width9.0
Package Length18.9
Weight3.6 PG
Part CategoryPerformance Parts
Turndown CutSlant
Inlet Inside Diameter3 in (76.2 mm)
Outlet Diameter3 in (76.2 mm)
Mandrel-BentYes
QuantitySold as a pair
Overall Length12 in (304.8 mm)
Turndown FinishBlack painted
Turndown MaterialSteel
Turndown InstallationClamp-on
Vendor Part Number11331HKR
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
