SKU: 78466825903

QA1 GM Pro Front Coil-Over System - MOD Series - 10in x 600lbs/in - Pigtail - Aluminum

$1124.55 $1249.50
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Description

QA1 GM Pro Front Coil-Over System - MOD Series - 10in x 600lbs/in - Pigtail - Aluminumsoft or firm compression and rebound valve packs also available. Once the desired valving is in place, the unique double adjustable design, with adjustable low speed bleed, allows for fully independent control over the compression and rebound characteristics. With all these adjustability options, the MOD Series shock achieves an expansive force curve capability and an unprecedented level of tunability. The shock also features mounting adjustability to

soft or firm compression and rebound valve packs also available. Once the desired valving is in place, the unique double adjustable design, with adjustable low-speed bleed, allows for fully independent control over the compression and rebound characteristics. With all these adjustability options, the MOD Series shock achieves an expansive force curve capability and an unprecedented level of tunability. The shock also features mounting adjustability to accommodate a variety of vehicles and mounting configurations. The nitrogen-charged canister is available in a piggyback or remote configuration for ease of installation in tight areas, and the base eyelet is indexable, so you can unbolt it and reattach it at the angle you need for the best shock and canister placement. Like all QA1 shocks, the MOD Series shock is 100% dyno tested and serialized and proudly made in QA1's Lakeville, Minnesota facility.

  • Valve packs shock can quickly and easily be revalved without interrupting the oil path or opening the shock up for debris and air contamination
  • QuickTune Technology: dry modular valve packs that can easily be swapped out
  • Remote or piggyback canister mounting options
  • 4-way adjustable high and low speed bleed
  • 100% dyno tested and serialized
  • Made in the USA

This Part Fits:

Year Make Model Submodel
1973-1974 Buick Apollo Base
1967-1969 Chevrolet Camaro Base
1967-1969 Chevrolet Camaro RS
1967-1969 Chevrolet Camaro SS
1967-1969 Chevrolet Camaro Z28
1968 Chevrolet Chevy II Nova
1969-1974 Chevrolet Nova Base
1973-1974 Chevrolet Nova Custom
1973-1974 Oldsmobile Omega Base
1967 Pontiac Firebird 326
1968-1969 Pontiac Firebird 350
1969 Pontiac Firebird 350 HO
1967-1969 Pontiac Firebird 400
1967-1969 Pontiac Firebird Base
1967-1968 Pontiac Firebird HO
1967-1969 Pontiac Firebird Sprint
1969 Pontiac Firebird Trans Am
1971-1974 Pontiac Ventura Base
1973-1974 Pontiac Ventura Custom
1974 Pontiac Ventura GTO
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: 78466825903

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4.3 ★★★★★
Based on 15 reviews
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A
Verified Purchase
Andrew Roland
Belleville, US
★★★★★ 5
Great for High Mileage Vehicles
Size: 5 Quarts
Reliable synthetic blend for high mileage vehicles. Castrol GTX High Mileage 20W-50 is our go-to oil for older vehicles and high-mileage units in our dealership inventory. The synthetic blend formula provides good protection for engines with significant wear. The 20W-50 viscosity helps reduce oil consumption in higher mileage engines. We've had excellent results using this in trucks and SUVs with over 100k miles. The seal conditioning additives help prevent leaks. Price point is reasonable for a quality synthetic blend. The 5-quart bottles are convenient for standard oil changes. Castrol quality and reputation you can trust. Solid choice for keeping high-mileage vehicles running strong.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 16, 2026
B
Verified Purchase
Bernard G.
Waukegan, US
★★★★★ 5
Hustler raptor SD hydro oil
Size: 5 Quarts
Good quality oil used for my hustler raptor SD hydro oil. Far better price than buying a 100 dollar kit. My total cost was 40 bucks with filters.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 14, 2026
B
Verified Purchase
Bert
Boise, US
★★★★★ 5
Quality oil
Size: 5 Quarts, Pack of 3
I use nothing but Castrol GTX high mileage 20w50 oil and Wix oil filters in my 2000 Nissan Frontier with 317,000 highway miles on the engine. I change the oil every 3,000 miles and engine is still going strong!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 19, 2026
P
Verified Purchase
PJ
Chelsea, US
★★★★★ 5
Amazon has become my go-to motor oil merchant
Size: 5 Quarts
I could not be happier with this oil. I have been using Castrol GTX regular and High Mileage oils in several cars for 8+ years so you can imagine that I am satisfied with the brand. As for Castrol's GTX High Mileage 20W-50, I have been using it for a while, first purchasing it at parts stores, but this oil was phased out of many stores in my area. I bought most of the stock I could find in the local stores and then pondered the question of what to do when I use it all up. I searched for this oil on Amazon, merely on a whim, and I was ecstatic to find that they sold it for a price much lower than what I was paying in the auto stores. An oil change on my car takes about four quarts, so I first purchased two of these five quart containers. After using them up and a having a great experience purchasing them on Amazon, I went ahead and purchased four more containers to stock up. I do much of my own vehicle maintenance and working on cars a hobby of mine, so oil changes are something that I always do on my own. I use this Castrol in a 1992 Volvo 240 Wagon with 250,000 miles which is a daily driver and I will not use anything else for oil at this point. A specialist for these cars recommended that I try a 20W-50 oil in the B230F in my Volvo. I have been able to keep my engine running very smoothly for its age and mileage through regular oil changes and the use of this quality oil. I am confident that recurrent use of this oil will help me push the Volvo many more miles before needing to do an overhaul (the engine is yet to be overhauled, but that should be no big surprise for anyone who has experience with a B2XX engine Volvo).
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 13, 2016
K
Verified Purchase
KIRK LUDLOW
Lowell, US
★★★★★ 5
Cannot purchase this locally any longer
Size: 5 Quarts
I cannot purchase this viscosity locally any longer. I was very glad to see it offered here. I use this thicker oil in my 2.2 liter Chevrolet engine that has over 200k miles. It works great.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 12, 2026

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