Stock LS3 engine on dyno, exhaust barely pulsing, factory tune
BASELINE
376hp

Stock LS3 · Factory Tune

376hp

Dyno curve — stock

Gain
+0
hp
Tuned LS3 engine after cam headers and dyno tune, exhaust barking at redline
AFTER TUNE
442hp

Cam · Headers · Tune

442hp

Dyno curve — tuned

Same block. Different animal.

BUILD-SPEC-001

Pick your build. Read the spec sheet.

Every tier below is a real parts invoice — manufacturer part numbers, dyno-verified gains, and a price that doesn't change at the counter. Scroll down a tier when the numbers stop being enough.

Street

Package

Daily driver. Weekend warrior.

Power Gain
+28–40 hp
Torque Gain
+32 lb-ft
Build Spec
Tune
HP Tuners VCM Suite
HPT-MPVI3
Throttle Body
90mm FAST LSXRT
FAST-146302B
Cold Air Intake
Airaid MXP Series
AIR-250-306
Dyno Pulls
3× baseline + 3× final
What's Included
  • Street drivability map
  • Idle quality preserved
  • AC & emissions safe
  • Printout included
Starting at$1,495
Order Street Build

Full Race

Package

Rotating assembly. Max attack.

Power Gain
+110–160 hp
Torque Gain
+120 lb-ft
Build Spec
Pistons
JE Pistons 4.030" Forged
JE-182044
Rods
Manley H-Beam 6.125"
MAN-14042-8
Cam
Comp Cams custom grind
COMP-CUSTOM
Heads
AFR 245cc CNC Ported
AFR-1139
Fuel
Injector Dynamics ID1300x
ID-1300.60.14.15.8
Tune
Full E85 or pump gas map
HPT-MPVI3
What's Included
  • Full teardown & assembly
  • ARP hardware throughout
  • Oil system upgrade
  • Dyno certification sheet
Starting atFrom $6,800
Order Full Race Build

* Power gains are wheel horsepower measured on Dynojet 224xLC. Results vary by engine condition, platform, and fuel quality. All builds include baseline and final dyno sheets.

DYNO-DATA-003

The graph doesn't lie.

Before and after overlay — same engine, same day, same load cell. Every run is logged and printed. You leave with data, not promises.

Stock
Tuned
Dynojet 224xLC · WHP
500450400350300250250035004500550065007000
Engine Speed (RPM)

Walked in at 376whp. Left at 441. The cam lope at idle draws a crowd at every cruise night.

Marcus Webb
2014 Camaro SS · LS3
Gain
+65 hp

Pulls a 10,000 lb trailer up Donner Pass without touching the brake. Before it was downshifting twice.

Derek Houle
2018 Silverado 1500 · L83
Gain
+38 hp

They tuned my E85 build with a custom cam grind. 512whp on a street car that idles under 900 rpm.

Jason Pritchard
LS3 swap · 1972 Nova
Gain
+136 hp
CONFIG-002

Build your order. Price updates live.

Select your platform and engine code. Add-ons stack on top. The number in amber is what you pay — no surprises at the counter.

Add-Ons
Total (parts + labor + tune)
Dyno sheet included with every build
Select platform above

Submitting locks in your price estimate. We'll call to confirm parts availability and schedule.

CONTACT-004

Not sure what you need?

The guy with a numbers-matching '69 doesn't fill out a form. Drop your number and we'll call you back — usually within the hour during shop hours.

Mon–Fri 8am–6pm PT · Sat 9am–3pm PT

Location
4812 Industrial Way
Rancho Cordova, CA 95742
Hours
Mon–Fri 8am–6pm
Sat 9am–3pm
Direct Line
(916) 555-0182
Ask for the dyno shop