SKU: 13346802632

MACE PLENUM SPACER AND MANIFOLD INSULATOR COMBO PACK TO SUIT HOLDEN STATESMAN WM SIDI LLT 3.6L V6

Sale price$93.60 Regular price$104.00
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Ships within 48 hours · Estimated delivery Aug 26 - Aug 31

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Description

MACE PLENUM SPACER AND MANIFOLD INSULATOR COMBO PACK TO SUIT HOLDEN STATESMAN WM SIDI LLT 3.6L V6Installing either an insulator or a spacer on an engine such as the LLT definitely has its merits but to combine the two components, the gains are truly unrivaled when it comes to budget performance. By increasing the plenum chamber volume with the spacer and lengthening the intake runner length with the insulator, the volumetric efficiency of the motor is improved by a noticeable margin over the entire rev range. These parts are manufactured from a

Installing either an insulator or a spacer on an engine such as the LLT definitely has its merits but to combine the two components, the gains are truly unrivaled when it comes to budget performance. By increasing the plenum chamber volume with the spacer and lengthening the intake runner length with the insulator, the volumetric efficiency of the motor is improved by a noticeable margin over the entire rev range.

These parts are manufactured from a thermo-composite plastic so not only do they provide the benefits already mentioned, but also prevent the manifold from heat-soaking, which maintains a cooler charge air temperature and generates a higher resistance to knock. The result is sustained horsepower gains and crisp-like throttle response.

With all the "bolt on" parts there are available today, these by far are the easiest to fit and arguably yield the greatest results all without the need of an expensive engine re-calibration. We also have packages to accommodate any engine setup or space requirements; catering for forced induction, naturally aspirated and everything in between. We're sure we'll have a combination you'll be exceptionally satisfied with.

 

Contents:

  • 1 X Manifold insulator kit
  • 1 X Plenum spacerkit

Vehicle Fitment Guide


Parts Guide

Please select the part number you require from the variation by utilising our vehicle fitment guide and parts guide.

Notes:
  • Any combination where the plenum spacer is thicker than the insulator should be used on forced induction only.
  • Due to the substantial increase in height, the combinations with a 25mm manifold insulatorwill require minor modification to ensure proper fitment under the bonnet. The plastic cowling will need to be trimmed and a section of the bonnet lining will have to be cut out. A re-stocking fee will apply if under bonnet clearance is misjudged and a kit needs to be returned/exchanged.
  • Please take any necessary measurements prior to purchase. We will not be held responsible for any clearance issues you may have as every vehicle is made with slight differences.
  • If you have any concerns regarding installation, refer to ourKnowledge Base.Fitting instructions are also available on our website.
  • If space allows, a combination of a 12mm plenum spacer with a 6.35mm manifold insulator for forced induction and a 12mm plenum spacer with a 25mm manifold insulator for a naturally aspirated setup, is ideal.
  • These components can be purchased separately through other listings.
  • The image is for illustrative purposes only.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 13346802632

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Reviewed in the United States on February 14, 2026
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JonnyBoyAmazon
Phoenix, US
★★★★★ 5
My new favorite watch. Simple home improvement needed
Color: all black watch mens, Color: all black watch mens
Despite having many reknown brand watches in my collection, these inexpensive Olevs watches are now my favorite. They look nice, cost practically nothing and so far are very accurate (10 day review). Little to worry about if lost or damaged. PROS: 1. Inexpensive $40/each. 2. As stylish as other fashion watches 5x-10x more expensive. 3. Watch Crystal (i.e., glass) has a unique, faceted shape, which reflects light, feels "Manly" and matches faceted bezel. 4. Light weight and slim case; fits small wrists nicely (I have 6.4" wrists). 5. Accurate - two watches tracked over 10 days. Watch one: -7 seconds/10 days. Watch two: +2 seconds/10 days. 6. Illuminescent (i.e., glow-in-the-dark) hands and watch face look decent in dark. CONS: 7. Lightweight and cheap material - durability is questionable, especially coatings. 8. Bracelet/band links have excessive gaps to each other and rattle badly, making watch noisy and embarrassing. *Home fix* 9. Faceted Crystal can make it difficult to see exact time, because of light reflection. 10. Single clasp on bracelet could easily open inadvertently, vs double clasp. 11. Crown is not threaded and spins freely, even when closed (doesn't change time); likely poor water proofing and crown can easily open. 12. Difficult to set time accurately; crown movement is figity and closing crown can cause hands to easily move. 13. Second hand doesn't exactly line up with tick marks making it difficult to know if actual time is before, or after tick mark. *AT HOME FIX*: To fix the noisy bracelet, simply cut to length a piece of waterproof medical tape 15-16mm (5/8") wide, then attach to inside of clean bracelet, while spreading the links apart with your finger (i.e., stretch band). Do this on each bracelet, but don't cover clasp. Tape will need to be replaced, as it gets dirty, but it makes watch quiet. - Watch dimensions for collectors - A) Case Diameter (to Crown): 44mm B) Case Diameter: 42mm C) Lug-to-Lug length: 50.5mm D) Case Thickness (Top of Crystal): 12.6mm E) Strap/Bracelet Width at Case: 20mm F) Strap/Bracelet Width at Clasp: 18mm G) Weight 6.4" wrist size: 100g (3.5oz)
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Reviewed in the United States on May 12, 2025

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