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Product Summary

Universal Fit, Crossover Tubing Exhaust Pipe Type

  • Specially designed to fit your GM 4L60/4L80
  • Engineered to be much more durable & retain more heat than fabricated headers
  • They are made from cast iron and allow a simpler and easier way to add a turbo to your muscle car
  • The cross-over tubes are made from 16-gauge, mandrel bent 304 stainless steel and include a flex joint and v-band flanges welded on for an easy bolt-on fit
  • Works with most common LS swap parts (i.e. motor mounts, swap oil pan, and accessory drive systems) & provide the basic building blocks needed to complete a custom turbo system for your GM LS engine

Key Specs

MFG. Part #8515HKR
BrandHooker Headers
Exhaust Pipe TypeCrossover Tubing
Outside Diameter2.250"
Material Type304 Stainless Steel

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Hooker Headers 8515HKR Details

Holley's new LS Turbo Exhaust Manifolds are made from cast iron and allow a simpler and easier way to add a turbo to your muscle car. These manifolds are made from High-Silicon-Moly ductile iron and are much more durable & retain more heat than fabricated headers. The manifolds kits include v-band clamps & flanges, heater hose heat shield, and header bolts. A turbo cross-over tube is used to connect the two manifolds (sold separately). Choose the cross-over tube based on the transmission (and bell-housing) for optimal fit and ground clearance. The cross-over tubes are made from 16-gauge, mandrel bent 304 stainless steel and include a flex joint and v-band flanges welded on for an easy bolt-on fit. A universal cross-over component kit is also available for custom applications that need something a little different (requires fabrication & welding). These parts work with most common LS swap parts (i.e. motor mounts, swap oil pan, and accessory drive systems) & provide the basic building blocks needed to complete a custom turbo system for your GM LS engine

  • Fits GM 4L60/4L80
  • Choose Cross-Over Tube Based on Type of Transmission & Bell-Housing
  • Cross-Over Tubes Are 16 Gauge, Mandrel Bent 304 Stainless Steel & Include a Flex Joint & V-Band Flanges
  • Pre-Made Cross-Over Tube Provide Optimal Fit & Ground Clearance

CARB Warning

For race/ off road use only

Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

Hooker Headers 8515HKR Specifications

KEY SPECS
MFG. Part #8515HKR
BrandHooker Headers
Exhaust Pipe TypeCrossover Tubing
Outside Diameter2.250"
Material Type304 Stainless Steel
GENERAL
Speedway Motors Catalog Part #425-8515HKR
FinishNatural
Gauge Thickness16 gauge
Mandrel BentYes
Sold in QuantityEach
GTIN Code090127008867