Auto Performance Solutions in Lewisville, TX and the Surrounding Areas

The team at Auto Science is passionate about helping our community get the most out of their cars.

As Lewisville auto performance experts, we can assist with your engine build, 4x4 project or other custom car services for all years, makes and models, including exotics. From turbos and intercoolers to custom exhaust and complete engine swaps, we’re here to help. With an in house machine shop, custom fabrication and other services, we can really provide any sort of performance modification you desire, for any vehicle, track, street or off road. We encourage you to give us a call or visit our auto performance shop in Lewisville to discuss your automotive goals and we will let you know exactly how we can help.

• Custom Car Performance
• Engine Building 
• Subaru Specialists
• Custom Air Intakes
• Turbos & Intercoolers

• Custom Exhaust
• Off Road Parts & Accessories
• BG Services
• COBB Parts Dealer
• IAG Parts Dealer

Access Ports

We now offer Access Ports, renowned for being the most flexible and easy to use ECU upgrade solution for many types of vehicles. These Access Ports enhance the performance of cars with their more aggressive calibrations.

Air Intakes

The more cool air your engine breathes, the better it will perform. Cobb Tuning SF intake and airbox systems provide your vehicle with unrestricted air flow and the coolest air. The SF Intake system uses unique features in order to maintain maximum flow for performance while also greatly reducing turbulence.

Custom Exhausts

COBB exhaust systems typically feature 304 stainless steel construction for corrosion resistance, mandrel-bent tubing, TIG welds, polished tips, high-flow catalytic converter, muffler, resonator, flange gaskets, and tips and mufflers with COBB logo. The systems feature bolt-on installation and include cat-back exhaust and downpipe, providing excellent power gains and impressive exhaust notes.

Intercoolers

An intercooler reduces the temperature of the pressurized air charge going from your turbocharger or supercharger to your intake to produce maximum power from your forced induction system. Whether you want a replacement for the stock part or an upgrade for performance driving, COBB intercoolers will provide increased efficiency for your engine.

Parts for the New Ford Bronco - Upgrades & Off-road

The new Ford Bronco is a highly anticipated SUV that made its return after a 25-year absence. This SUV is built for off-road adventures, and it comes with a rugged design and advanced features to make the ride more enjoyable. IAG specializes in producing custom parts and accessories for off-road vehicles, including the new Ford Bronco. Give Auto Science a call to speak with one of our expert automotive technicians about adding or upgrading your new Ford Bronco or other Ford or Subaru vehicles with IAG parts.

IAG Stage 2 TUFF 2.5L Subaru Short Block

Stage 2 Tuff Short Block Installation Includes:

• Case Halves -Brand new Subaru OEM case halves, bored and honed to 99.75mm.
• Pistons -IAG-Spec JE 99.75mm Forged Pistons, Ring Set, .210" 9310 Steel Pins, Clips, (Perfect Skirt Coating and Offset Wrist Pin)

Connecting Rods -IAG-Spec Tuff H-Beam / ARP2000 Rod Bolts

• Rod / Main Bearings -ACL or King Race bearings.

Crankshaft -Standard New Subaru Nitride Treated 2017+ STI Crankshaft

• Case / Main Bolts -Standard FHI Subaru case bolts
• Complete Engine Gasket Kit
• All Fluids
• Subaru Cylinder Head Complete Refresh (Cylinder Head Resurface, Clean, Lapping of Valves, Replacement of Valve Seals)
• ARP 2000 Cylinder Head Stud Kit
• NEW OEM Oil Pump
• $9,000 Installed*

*Additional items may be required depending on their condition and previous engine failure that will affect this price. The above advertised price includes all the items listed above, labor and tax.

IAG STAGE 2 FADIT Short Block

Stage 2 FA20DIT Short Block Installation Includes: 

• Case Halves -Brand new OEM Subaru FA20 case halves, bored and honed to 86.1mm
• Case Machining - Modified for improved oiling
• Case Machining - Bored and honed to 86.1mm
• Pistons -IAG-Spec 86.1mm Forged Pistons, Ring Set, and .150" x 2.250" Chromoly Wrist Pins
• Connecting Rods -IAG-Spec H-Beam / ARP2000 Rod Bolts
• Rod -ACL or King XPG
• Main Bearings -King XPG
• Crankshaft -New Subaru FA20 DIT WRX crankshaft
• Case / Main Bolts -Standard Subaru case bolts
• Hardware - OEM Oil Plug - comes pre-installed at the oil pan location
• Complete Engine Gasket Kit
• All Fluids
• Subaru Cylinder Head Complete Refresh (Cylinder Head Resurface, Clean, Lapping of Valves, Replacement of Valve Seals)
• ARP 2000 Cylinder Head Stud Kit
• NEW OEM Oil Pump
• $10,000 Installed*

*Additional items may be required depending on their condition and previous engine failure that will affect this price. The above advertised price includes all the items listed above, labor and tax.

IAG Air Oil Separator

• $1,160 Installed on 2004-2023 Subaru Impreza STi
• $1,160 installed on 2002-2014 Subaru Impreza WRX
• $1,200 Installed on 2015+ Subaru Impreza WRX