Sinister Muscle Cars

07/07/2026

C8 transmission tuning is here. 🔥

Introducing the GM T46 TCM Upgrade Service for supported Global B Corvette C8 models.

HP Tuners now supports the Tremec T46 TCM in 2020-2026 Corvette C8s, allowing a complete ECM + TCM tuning in one solution.

Stingray. Z06. E-Ray. ZR1. Build more comprehensive calibrations with the tools you already trust from HP Tuners.

✔ New GM T46 TCM Upgrade Service
✔ 2020-2026 Corvette C8 Support
✔ Tremec T46 TCM Support
✔ MPVI4 Compatible
✔ TDN & RTD4 Compatible
✔ 6 Universal Credits

Check vehicle compatibility now 👉 HPTuners.com

06/26/2026

A little 2650 action to wake this spotless C7 Z06 up! Not only does Dylan's Coatings take meticulous care of this car, but drives the crap out of it as well. Shooting for a high 8 second pass when weather permits!!! Texas Speed & Performance American Racing Headers DSX Tuning Wisher Performance

05/21/2026

CORSA Performance headers and mid pipes WOKE this C8 up pretty well!! 455 HP with exhaust work and a tune only! Mainline DynoLog Dynamometers

05/02/2026

After a long list of previous modifications, this client was ready to go all out with the addition of a Kong Performance supercharger, ported blower, Grip Tech 2.30, Cordes Performance Ice tank & an upgraded heat exchanger system along with some magic on the keys from MSTuning. We were able to lay down 968 whp! This is going to be one bad m**o on the street!

05/02/2026

04/30/2026

Not every day you get to throw a 70 Cuda on the Mainline DynoLog Dynamometers. We were able to pick up 49 hp with changing nothing but some screws and timing. Gotta love a good old carburetor set up from Holley!!

04/29/2026

After headers, and some pulley work last year, a previous customer of ours decided to go for a stage 2 setup with a camshaft and some other goodies. We were able to lay down around 750 HP on an ethanol mix. The car sounds wicked and runs even better!! Jacob Nichelson Texas Speed & Performance Stainless Works DSX Tuning

04/28/2026

No, you can't have this! One of those little things that no one has that brings the bike to life!! Mark Garris

04/21/2026

Wrapping up the last bit of fab work on Nathan Tapp's Road King! With bike week only a few weeks away, the time crunch is on. Wes Mantooth is doing his thing in the paint booth and once the bodywork comes back we're looking forward to hammering this thing together and getting down south!