Sleeper Tuning

Sleeper Tuning Skyline and Supra Specialist - Engine Builds - Dyno Tuning - Parts Sales/Installation

08/16/2026
Since everyone is super concerned about us lifting the head,us included, we will do head-studs. 658hp is definitely push...
08/12/2026

Since everyone is super concerned about us lifting the head,us included, we will do head-studs. 658hp is definitely pushing the limits but we are testing our turbo kit.

And as you can see she still has stock camsšŸ˜‰ for anyone who needs to see to believe

Sneak preview of our new rb manifold! More footage on our ig .tuning

We want you to have a flawless product at the end of the day that performs and lasts.

08/11/2026

658hp at 42psi on E85! We told you the was next to get it……

Engine is completely stock and still runs cold AC

This is our we have been working on to base our RB20DET turbo kit off. We are officially done with stage 2 of testing. May need a tire after this.

Our stage 2 turbo kit includes our Link ECU flex fuel package complete with egt sensors and an extended baffled sump as we get higher in hp.

Garrett - Advancing Motion G30-770 paired with our stainless manifold custom intercooler charge pipes catch can down pipe wastegate and trans catch can.
Injector Dynamics 1300’s brushless fuel pump

We have yet to upgrade the ignition coils but, we plan to do so in the future.

Kit is not yet ready for purchase but we are excited to share some progress as we get through the r&d phase. Hoping to have different kit options available on our website by early next year.

Visit sleepertuning.com for updates

2JZ engine build coming together for Brandon’s MKIV Supra.
08/03/2026

2JZ engine build coming together for Brandon’s MKIV Supra.

Who loves an R33 GTR? We do! 700+ whp Running our Link ECU package and tuned for flex fuel. Utilizing our custom R33 ash...
08/01/2026

Who loves an R33 GTR? We do! 700+ whp

Running our Link ECU package and tuned for flex fuel.

Utilizing our custom R33 ashtray mounted BTI 3.5ā€ touch screen display. Keeping that OEM plus look.

Check out Rich’s top mount turbo kit making nice power with Garrett - Advancing Motion G35-990.

A ton of preventative maintenance and upgraded parts to hold the power.

New XClutch ,Tomei Powered Inc. cam gears and oil pump Kelford Cams Platinum Racing Products R35 coil kit, complete pro trigger kit, Injector Dynamics 1300’s ,timing belt service, water pump, head studs, a big brake kit and more.

So if Rich ever wants to turn it up. šŸ¤ŒšŸ½

07/30/2026

This is the latest update of my Badass Street Cars list.

It is a work in progress.

If you see a mistake on your entry, let me know, or if you'd like me to add your time, just leave the ET, MPH, vehicle info etc, plus any other cool details you'd like to share.

I have this same list with more detailed entries that I'll also be posting.

I have notes scattered around and some comments are buried pretty deep so I may have missed some, so just let me know again here.

Matt’s GTR makes 740hp with Garrett - Advancing Motion G30-900
07/07/2026

Matt’s GTR makes 740hp with Garrett - Advancing Motion G30-900

Vlog # 127 Matt's GTR build. 2.8 Stroker. Full engine build to dyno...

šŸ¤šŸ¤˜šŸ½Mainline Hub dyno rentals available For your convenience- dyno room is located separately from our main shop ensuring...
06/26/2026

šŸ¤šŸ¤˜šŸ½Mainline Hub dyno rentals available
For your convenience- dyno room is located separately from our main shop ensuring privacy. Owner Edgar Laboy loads the car and operates the dyno while your car is tuned in person or remotely. Still unsure. Just ask our regulars.
Weekly appointments available call to schedule

Address

30 Albe Drive Suite C
Newark, DE
19702

Opening Hours

Monday 9am - 5pm
Tuesday 9am - 5pm
Wednesday 9am - 5pm
Thursday 9am - 5pm
Friday 9am - 5pm

Telephone

+13025533122

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