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JEGS Performance Products 30140

Exhaust Manifolds for GM LS Cast Iron

JEGS Performance Products 30140

555-30140 NEW

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JEGS Performance Products 30140 Exhaust Manifolds for GM LS Cast Iron $329.99
Exhaust Manifolds
  • GM LS (except LS7 & LS9)
  • Collector Diameter: 2.25"
  • Raw Cast Iron
  • Sold as a Pair

  • JEGS Performance Products 30140 Details

    LS Exhaust Manifold

    Note: Fitment issues may occur with models equipped with air conditioning. Modification to brackets may be required. Not compatible with 2004-2006 GTO starters/bellhousings.

    JEGS Cast Iron Exhaust Manifolds are designed to fit close to the engine block. The tucked-in design directs exhaust to the exit port for improved flow and allows you to route exhaust tubing close to your frame/floor pan for maximum ground clearance. Cast iron construction provides years of leak free performance. Intended for most GM LS engine swaps where durability, quiet operation, and a leak-free seal is desired.


    • Recommended for engines up to 500 horsepower
    • Tight design provides universal fit for most popular chassis
    • Free-flowing for catalytic converter efficiency
    • Cast Iron to provide endurance and corrosion resistance
    • 2 bolt exit flange
    • Can be used with OE gaskets & fasteners

    I've got a 2000 Silverado Z71 LS w/5.3. (325 ci)3 door pickup. Will these work with my application. It has 2.5" dual exhaust connected to 3" inlet 2.5" outlet w/45° angle bends pipes w/polished stainless steel tips coming out each side of rear!

    Asked by: Custom LS
    These will not fit 2000 Silverado,
    Answered by: Jegs Tech Bob
    Date published: 2017-08-23
    • y_2017, m_9, d_24, h_3CST
    • bvseo_bulk, prod_bvqa, vn_bulk_2.0.3
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    • loc_en_US, sid_10001_10001_3836344, prod, sort_[SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING)]
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