This OTR cold air intake utilises an OEM style plastic construction which makes it exceptionally durable while giving a factory style look to your engine bay. In conjunction to the larger filter area where airflow is dramatically increased from standard, there are also port bosses designed into both sides, allowing breather and/or catch cans setups to be easily plumbed into the OTR.

Installation of this OTR air intake is extremely easy with the adjustable mounting brackets and even clears Monaro's fluted bonnets!

With MAF or MAF-Less configurations available, the new plastic VCM OTR covers all options.

Contents:

• 1 X Plastic VCM OTR assembly
• 1 X Fitting kit

Vehicle Fitment Guide

Parts Guide

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

Notes: 

• The image is for illustrative purposes only.
• Vehicles with aftermarket radiators may experience installation difficulty. We will not be held responsible if your vehicle has an aftermarket radiator and fitment is unsatisfactory. Please check prior to purchase.
• A hole needs to be drilled in the OTR for the rubber grommet.
• Some modifications to the cooling/air-con system may be required on your VT-VX.
• MAF-Less configurations on some vehicles may require an additional IAT sensor and appropriate harness. These components have to be purchased separately.
• Please read the terms & conditions before making a purchase.
• For VZ MAF-Less OTRs, MAF-Less conversion kit (IAT sensor and harness) is mandatory and can be purchased through another listing.
• The MAFLess OTR requires a suitable tune. Depending on the current mods of the vehicle, we can supply a custom mail order tune separately, otherwise a dyno tune would be required.

Mace timing chain sets are designed for use with stock cams. They have a solid-bushing chain for a true bearing surface that rolls with the sprockets, eliminating chain stretch. This timing kit includes a stock replacement crank sprocket with a single keyway.

Contents:

• 1 X 3-bolt single trigger cam sprocket
• 1 X Single keyway crank sprocket
• 1 X Roller chain

Vehicle Fitment Guide

Note: This timing chain set is not for use above 6,500 rpm.

Mace Performance Rear main seal housing kit has been flawlessly manufactured from high-quality die-cast aluminium to accommodate all LS model engines. The strength and durability of this kit makes it ideal for replacing a damaged housing and guaranteeing long-lasting performance for your engine.

This Performance Rear main seal housing kit suits HSV vehicles fitted with LS1, LS2, LS3 and LSA Supercharged V8 engines.

Contents:

• 01 X Gasket
• 01 X Rear main plate 
• 01 X Rear main seal
• 12 X Plate to block bolt

Vehicle Fitment Guide

Note: This housing will not fit LSX blocks.

NPR® (Nippon Piston Ring) was established in 1931 and have six manufacturing plants in Japan and further 9 plants in USA, Europe and Asia employing 2310 staff. NPR® is recognized as a world leading manufacturer and is original equipment to major Japanese and European automotive companies.

NPR's unrivalled piston rings are manufactured to exacting specifications so proper fit and clearance is achieved. When it comes to enduring the extreme conditions that occur in the combustion chamber while performing such functions as sealing, heat dissipation and oil control, there's no better option than Nippon rings. Perfect for standard rebuilds and lightly modified vehicles.

Specifications:

• Compression rings width: 1.5mm
• Oil ring width: 3mm
• Top ring material: Chrome

Contents:

•  1 X Nippon piston ring set

Vehicle Fitment Guide

Parts Guide

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

Notes:

• Pistons suited to these piston rings can be purchased through another listing.
• The image is for illustrative purposes only.

This high calibre bottom end gasket conversion kit is intended to service the bottom half of the engine block; essentially everything under the cylinder heads. These Mahle gaskets are synonymous with uncompromising quality and durability whilst meeting all relevant OEM specifications. You won’t find a finer sealing product.

Contents:

• 1 X Front crankshaft seal
• 1 X Rear main seal
• 1 X Camshaft retaining plate
• 1 X Front timing cover gasket
• 1 X Rear main plate gasket
• 1 X Oil filter seal
• 1 X Oil pan gasket
• 1 X Oil pan drain plug washer
• 2 X Oil pump inlet O-ring
• 2 X Oil cooler block-off gasket
• 4 X Water pump gasket

Vehicle Fitment Guide

This main cap girdle is designed to reduce "cap walk", stop block web flexing and eliminate cracking of the main caps/block webs; this is achieved by boxing in the main caps. Our light weight girdle evenly distributes load and dampens harmonics by bolting the main cap studs together to create a super strong rectangular cage. The brace nearly doubles the main web support area in the engine.

In addition, due to the close proximity of the main stud girdle to the crankshaft and rods it also aids in stripping oil off of the crank, which in itself yields a net gain in HP.

Fabricated from 12.5mm thick 6061-T6 aluminium, these girdles are a must for high rpm/high horsepower applications where block rigidity is critical.

Contents:

• 1 X Alloy main girdle

 Vehicle Fitment Guide

Notes:

• This girdle fits all GM LS variants except for LS7 and LS9.
• This girdle is compatible with OEM windage tray, main caps and sump.
• This girdle will clear up to a 4" stroke.

This main cap girdle is designed to reduce "capwalk", stop block web flexing and eliminate cracking of the main caps/block webs; this is achieved by boxing in the main caps. Our heavy duty girdle evenly distributes load and dampens harmonics by bolting the main cap studs together to create a super strong rectangular cage. The brace nearly doubles the main web support area in the engine.

In addition, due to the close proximity of the main stud girdle to the crankshaft and rods, it also aids in stripping oil off of the crank, which in itself yields a net gain in HP.

Fabricated from 12.5mm thick high strength steel, these girdles are a must for high rpm/high horsepower applications where block rigidity is critical.

Contents:

• 1 X Steel main girdle

Vehicle Fitment Guide

Notes:

• The images are for illustrative purposes only.
• This girdle fits all GM LS variants except for LS7 and LS9.
• This girdle is compatible with OEM windage tray, main caps and sump.
• This girdle will clear up to a 4" stroke.
• Custom length main studs are required. These can be purchased from any authorized ARP dealer.

Mace replacement rocker cover gasket set to suit all GM LS based engines. These press into the grove on the rocker covers just like the factory units to ensure a leak free seal.

Contents:

• 2 X Rocker/Valve cover gasket

Vehicle Fitment Guide

Note: These do not include the rocker cover grommets.

Mace Engineering offers Gen III LS1 custom bench-top reprogramming for your factory ECU using established tuning software. Our high standard for customer service guarantees you’ll love the performance gains at prices you won't turn pale at.

Extracting performance and economy from the manufacturer’s original engine management computer has become a popular modification in today’s modification scene.

We have an extensive range of tunes in our database covering a large variety of modifications, which target all HSV vehicles factory fitted with the GEN III LS1 5.7L V8 engines. This allows us to select an appropriate and safe tune to suit your modification, whether it be a cold air intake, full exhaust system or diff gears etc. Power output will vary based on your vehicle's modifications, but the average LS1 with an intake and an exhaust upgrade will generally make around 220-230 rwkw with a substantial improvement in fuel economy. 

In addition to editing the engine calibration, we can also improve the performance of the automatic transmission by accommodating a change in final drive ratio or stall converter, harden up the gear shifts and reduce shift times between gear changes. The choice is yours as we can tailor the tune to suit your needs.

Key Benefits:

• Value for money when compared to a dyno tune.
• Sharper throttle response.
• Increased HP and torque.
• Firmer gear changes.
• Quicker gear changes.
• Improved fuel economy.
• MAF-Less tunes available.

Contents:

• 1 X Performance enhanced engine calibration​

Vehicle Fitment Guide

Notes:

• Please fill out our *tune form* and email it back to us following your purchase. There is a "fill and sign" feature under the tools section on adobe to make this process simple and easy. Alternatively, you can just email all the answer back to us.
• We only do these ECU's on a change-over basis due to the limited number we can source, so the customer must send their PCM first with a completed tune form.
• Buyer is responsible for packaging the ECU/PCM and covering the postage cost. It is recommended to use Australia Post registered post service for insurance and traceability purposes. 
• Our remote tunes can only currently cater for minor bolt-on modifications. Upgrades such as larger injectors, camshaft, modified heads and forced induction will require a dyno tune.

We have packaged 2 of the best bang for buck modifications currently available for the VZ LS1 V8 saving you a massive 10%, if these upgrades were to be purchased separately!

Coupling the popular VCM OTR with our in-house custom flash tuning service, reliable power at an affordable price has never been easier to achieve.

The tune is very comprehensive and tailored to your needs, through the use of our tune form. The OTR cold air intake is a genuine VCM unit so you can be assured of superior flow characteristics and durability compared to the other un-branded units lurking in the market-place.

Not only power is increased around 35 kw at the flywheel (more with a full exhaust system) and also fuel economy, responsiveness and smoothness of power delivery are all considerably improved. If your HSV is an automatic, we can also upgrade the settings of your transmission to have it respond quicker and smoother, as well as behave in a more respectable fashion.

This upgrade can be installed in a little over an hour and is effortlessly reversible if ever required. 

Contents:

• 1 X VCM OTR
• 1 X VCM intake air temp (IAT) sensor
• 1 X VCM intake air temp (IAT) extension harness
• 1 X Performance enhanced engine calibration

Vehicle Fitment Guide

Notes:

• The VCM OTR included in this package suits MAF-Less application only.
• Please fill out our *tune form* and email it back to us following your purchase. There is a "fill and sign" feature under the tools section on adobe to make this process simple and easy. Alternatively, you can just email all the answer back to us.
• The ECU in this package is only done on a change-over basis due to the limited number we can source, so the customer must send their PCM first with a completed tune form.
• Our remote tunes can only cater for minor bolt-on modifications. Upgrades such as larger injectors, camshaft, modified heads and forced induction will require a dyno tune.
• Buyer is responsible for packaging the ECU/PCM and covering the postage cost. It is recommended to use Australia Post registered post service for insurance and traceability purposes.
• The MAFLess OTR requires a suitable tune. Depending on the current mods of the vehicle, we can supply a custom mail order tune separately, otherwise a dyno tune would be required.