Tapout Tuning

LF4 Performance Tuning Specialists

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ATS-V Brown Belt Upgrades!

This customer shipped their pride and joy 2016 ATS-V cross country so they could get the full Brown Belt Package treatment. This is one clean ride and now they’ve got the power to match the looks! We created a flex fuel tune that will automatically scale fueling and ignition timing from regular pump gas to straight E85 and peaks at 636 whp. When that won’t get the job done, their custom Kill Tune produces a wicked 747 whp on E60 to E70 fuel!

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Brown Belt Dyno Chart

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Tapout Tune of the Week! – Dave’s CT4-V Blackwing JB4 Tune

Dave dropped off his sweet M6 2023 CT4-V Blackwing with a wicked cool metallic forest green wrap for our White Belt Package plus a Gigs ported throttle body with the JB4 tuner. He was interested in seeing the kind of gains the JB4 could produce, so before installing any modifications, we strapped Dave’s car to the dyno to see what kind of power his car was putting down. To our surprise, this CT4-V Blackwing baselined as one of the highest we’ve come across, making 432 whp.

After installing colder Brisk spark plugs, Gigs ported throttle body and the JB4 tuner, Dave’s car produced a respectable 488 whp! Those are some impressive gains for a few bolt-ons!

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Dave's JB4 Dyno Chart

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Carbon Fiber Base Splitter, Radiator Covers and Rocker Extensions Now Shipping!

Whether it’s performance modifications or aesthetic improvements, it’s always fun making changes to your own car, particularly if it’s a CT4-V Blackwing!

Now, in addition to the carbon fiber radiator covers and carbon fiber rocker extensions, we have the carbon fiber front base splitter! This is a lower cost alternative to the full front splitter and can be a better bet if you live in an area with a lot of potholes!

All of these pieces are available in both OEM carbon fiber and Flake carbon fiber so get yours today!

Find it all on our CT4-V Blackwing Appearance page!

#TapoutTakeover   #WontTap   #UnderPromiseOverDeliver   #BreakRecordsNotParts

Tapout Tuning Flake Carbon Fiber Base Splitter OEM Carbon Fiber Radiator Cover Carbon Fiber Rocker Extensions

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Tapout Tuning Spark Plug Gapping Tool and Feeler Gauge Set

While many of us remember the days of tapping your spark plugs on the work bench to get the perfect gap, the high-performance spark plugs we use for our Cadillacs today require much more finesse. That’s why we’re now offering our Tapout Tuning Spark Plug Gapping Tool and Feeler Gauge Set!

This spark plug gapping tool allows for precise gapping with no risk of spark plug damage. Feeler gauge set has 32 blades ranging from .0015 to .035”, including all the common sizes used in high performance Cadillacs (.035”, .028”, .026”, .024”, .022”, .020”, .018” and .016”).

Now you can be sure you get the perfect gap on your spark plugs every time. Pair that with plenty of dielectric grease upon their installation and you’ve set yourself up for success!

#TapoutTakeover   #WontTap   #UnderPromiseOverDeliver   #BreakRecordsNotParts

Tapout Tuning Spark Plug Gap Tool Tapout Tuning Spark Plug Gap Tool Tapout Tuning Spark Plug Gap Tool Feeler gauge