SKU: 44460153959

MACE PERFORMANCE PLENUM SPACER KIT TO SUIT CHEVROLET CAMARO G5 SIDI LLT 3.6L V6

Sale price$85.50 Regular price$95.00
Save 10%

Pay in installments of $23.75 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 23 - Jul 28

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

MACE PERFORMANCE PLENUM SPACER KIT TO SUIT CHEVROLET CAMARO G5 SIDI LLT 3.6L V6Exclusive to Mace Engineering is our design registered plenum spacer kit to suit Chevrolet SIDI LLT 3. 6L V6 engines. What is a plenum spacer and what does it do? A plenum spacer thermally separates the plenum cover and intake manifold. Its main purpose is to improve the air distribution between cylinders by slowing down the air speed inside the plenum chamber. As a result there is less of a pressure drop inside the plenum chamber between cylinders,

Exclusive to Mace Engineering is our design-registered plenum spacer kit to suit Chevrolet SIDI LLT 3.6L V6 engines.

 

What is a plenum spacer and what does it do?

A plenum spacer thermally separates the plenum cover and intake manifold. Its main purpose is to improve the air distribution between cylinders by slowing down the air speed inside the plenum chamber. As a result there is less of a pressure drop inside the plenum chamber between cylinders, and less air momentum, resulting in better air distribution and power. The change in airflow characteristics is shown in the diagram below.

 

 

Not only will our spacer help you make more power, it will also help prevent any costly rebuilds through dangerous lean outs that occur due to poor air distribution with standard manifolds in high horsepower/boost applications.

In addition to improving air distribution between cylinders, the increase in plenum volume also has a positive effect on bottom end torque.

The fact these spacers are manufactured from the same thermal resistant composite material as our manifold insulators means further horsepower gains are possible due to the reduction in heat soak.

 

Key Benefits:

  • Design registered.
  • Reduces charge air temperature resulting in better power consistency and detonation prevention.
  • Power increase with no undesirable side effects.
  • Improved air distribution between each cylinder.
  • Improved fuel economy.
  • Easy to install.
  • Can be used as a replacement gasket.
  • Reusable.
  • Proven gains at an affordable price.

 

Contents:

  • 1 X Plenum spacer
  • 1 X Bolt pack (Not included in MI690, refer to parts guide)
  • 1 X Silicone gasket maker
  • 4 X Spacer bush

Vehicle Fitment Guide

 

Parts Guide

 

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

 

Note: Installation is very straight forward, requiring only the removal of your plenum cover to install the plenum spacer.

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: 44460153959

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.5 ★★★★★
Based on 15 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
R
Verified Purchase
Ronald
San Leandro, US
★★★★★ 1
Does not fit Chevy LS3. Too big.
Color: Silver
Does not fit 2014-17 Chevrolet SS (LS3 V8) genuine GM oil filter. It slips. It's supposed to measure 74 mm flute to flute, but actually measured 77 mm with calipers. This wrench looks like it was used and was re-packaged with office tape. I purchased correct size from dealer that fits perfectly.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 25, 2026
T
Verified Purchase
Tom's reviews
Chelsea, US
★★★★★ 5
Good quality and fitment for mercedes e350
Color: Silver
Works perfect on my 2014 Mercedes E350! Should last forever, good quality. The price point is excellent.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 19, 2026
O
Verified Purchase
Omar K.
San Leandro, US
★★★★★ 5
Flutes and size perfect
Color: Silver
Excellent
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 7, 2026
R
Verified Purchase
Richard Gammon
Lexington, US
★★★★★ 5
Good quality
Color: Silver
Works perfect for my 2009 jeep 3.8
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 25, 2026
J
Verified Purchase
jake
Boise, US
★★★★★ 4
Excellent quatity cheap.
Color: Silver
Pervect fit. Heavy duty.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 21, 2026

recommand products