Tapout Tuning

LF4 Performance Tuning Specialists

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Labor Day Sale 2023!

We’ve got some excellent deals lined up for Labor Day this year! Following what the holiday is all about, our first offer is that any service deposit paid between now and September 8th will receive a 20% discount on your entire labor bill! You can book your appointment time for whenever you’d like, you just need to place the deposit in that timeframe.

And to really sweeten the pot, we’re also including the following discounts to save you even more when you come in for service!

  1. $100 off Downpipes
  2. $100 off Carbon fiber intakes
  3. $100 off Driveshafts

These parts discounts are still valid if you don’t come in for service, now through September 4th, but why not double up on the savings!?

You can find all these discounts on the Specials page of our website, and all service work can be schedule through Sales@TapoutTuning.com. We’ll see you at the shop!

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Back for Purple Belt Upgrades!

Our friend Nick came here last spring for us to install our Blue Belt Performance Package on his clean M6 ATS-V. He loved the power gains, and when the warm weather came back around this year he was hungry for more. Nick decided to step things up with our Purple Belt Performance Package and his car made 601 whp this go around! Needless to say, he was hyped about the power gains.

If we know Nick, we bet we will see him again next year for our Brown Belt Package!

Nick's ATS-V in 2023 Nick's Purple Belt Dyno Chart

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Back for Turbos!

Hector from Ohio has one of the nicest and cleanest CTS-V Sports we’ve ever seen. We dyno tuned his car last year and power peaked at 410 whp. This week he upgraded to ATS-V turbochargers, and we updated the tune accordingly. With no other changes, we picked up 40 whp!

Hector's CTS-V Sport

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Motorad Ignition Coils Now Available!

We have been testing these Motorad ignition coils in the world’s most powerful CT4-V Blackwing, which currently makes 747 peak whp. OEM coils retail for $113 each, or $678 per set. The Motorads are higher quality, perform better and sell for less than half the price! These coils are sold in sets of six and include a limited lifetime warranty. These are now available for immediate shipment at TapoutTuning.com!

Motorad Ignition Coils Motorad Ignition Coils Motorad Ignition Coils Motorad Ignition Coils

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217 Cubic Inches = 1,009 WHP

Tapout Tuning is proud to announce our new LF4 horsepower record of 1,009 WHP!

Testing and development continues on our ATS-V Black Belt Performance Package to get it perfect for public release. We started out by setting the new world records of 836 WHP and 8.77 seconds @ 155 MPH in the quarter mile at Cadillac Attack in January 2023. In the last six months we’ve made 40 dyno pulls above 800 WHP and we now have a new record of 1,009 WHP! Check out how peak power continues to climb, all the way past 7,000 RPM!

Black Belt will consist of all Brown Belt items with the addition of ATI Super Damper, Xtreme-DI fuel injectors, ARP CA625+ head studs and our soon to be released custom turbo kit. We still run the factory engine block, crankshaft, connecting rods, cylinder heads, intake manifold and intercooler system. Diamond Racing forged pistons will be recommended for those that want to run the largest boost and horsepower numbers. Of course, none of this would be possible without the incredible tuning hardware and software provided by HP Tuners.

1000 WHP ATS-V 1000 WHP ATS-V Bob's 1,009 whp dyno chart!