When a stunning 2020 McLaren 600LT Spider made its way from the West Coast to Cannonball Garage, it arrived with a big problem: a severe engine issue that left its dealership stumped. Their only solution? A brand-new McLaren M838T crate engine with a price tag to match. That’s where we stepped in.
More Than Just Repairs, We Deliver Solutions
At Cannonball Garage, we respect the expertise of dealerships, but we’re proud to offer a wider range of options for our customers through our McLaren engine rebuild program. After a thorough inspection, we confirmed what the dealership suspected—the engine did indeed need to be replaced. But instead of simply swapping it out for a stock McLaren crate engine, we proposed a smarter, more cost-effective solution: a complete CSO (Cannonball Special Operations) engine rebuild with some performance upgrades.
A McLaren M838T Rebuild with a Purpose
The rebuild wasn’t just about getting the car back on the road—it was about making it better than ever. We installed our robust CSO connecting rods, addressing the weakest point in the McLaren’s engine design. From there, we didn’t stop at just fixing the issue. The customer, thrilled by the savings from avoiding an expensive crate engine, decided to go all-in with performance upgrades:
- Upgraded Pure turbos
- High-flow fuel system
- Unobtainium exhaust system
To bring everything together, we partnered with M-Engineering to create a custom dyno tune for 91, 93, and MS109 octane fuels. The result? Mind-blowing performance:
- 749whp and 631tq on 93 octane
- 893whp and 742tq on MS109
CSO McLaren Power, Performance, and Value
The best part of this story? Even with all the upgrades, the total cost came in lower than the price of a stock replacement engine. The customer drove away with a McLaren that not only outperformed its original specs but also turned heads for its sheer individuality.
Why Settle for Stock?
At Cannonball Garage, we’re not just about repairing cars, we take vehicles beyond their stock capabilities, delivering more power, better value, and unmatched performance. So, why stick to stock when you can drive something truly unique?
Ready to unlock the potential of your supercar? Let’s talk.
Are you looking to service or build your car locally? Cannonball Garage is your Chicago area McLaren, Porsche & Mercedes-Benz specialists. We offer maintenance, service, repair, performance, dyno tuning and Police countermeasures and are an AMS / ALPHA Performance Authorized Installer. Visit Cannonball Garage and see why our shop has become one of Chicagoland’s most trusted maintenance and performance focused shops in the Midwest!