Table of Contents
Understanding the Investment: What It Really Costs to Modify an Acura Integra Type S
The Acura Integra Type S has earned a dedicated following among driving enthusiasts who value its blend of daily usability and sporting character. While the car is already potent from the factory, the aftermarket community has developed a wide array of upgrades that can unlock even more performance. Building a faster Integra Type S requires careful budgeting, because costs span parts, labor, and often the need for supporting modifications. This guide breaks down the full financial picture while giving realistic expectations for horsepower gains, improved handling, and overall driving satisfaction.
The Problem With Simple Cost Estimates
Many online guides list only part prices or give a single ballpark figure. Real-world modification costs vary based on brand, installation complexity, tuning requirements, and whether you do the work yourself. To help you plan accurately, we break down each major mod category into parts cost, typical labor hours, and the performance outcome you can reasonably expect.
Engine Tuning: The Biggest Bang for Your Buck
Modern ECUs control nearly every aspect of engine operation. A professional reflash or piggyback tune adjusts fuel maps, ignition timing, boost pressure (if the Integra Type S is forced induction), and throttle response. This is the single most cost-effective performance upgrade.
What Engine Tuning Does
A tune optimizes the air-fuel ratio and timing to extract power that the manufacturer left on the table for emissions and reliability margins. On the Integra Type S, a well-calibrated tune can yield 40–70 wheel horsepower depending on octane and supporting modifications.
Cost Breakdown
- Hand-held flash programmer (like Hondata/Hondata FlashPro): $400–$700 (one-time hardware purchase)
- Custom dyno tuning session: $400–$900
- Remote tuning (e-tune): $250–$500
- Installation: $0 (DIY with laptop and cable) or $100–$200 if shop charges for loading the tune
Total Estimated Cost: $650–$1,600
Expected Performance
With only a tune and no other mods, expect a 10–15% increase in horsepower (roughly 30–50 whp) and a much broader torque curve. Throttle response sharpens noticeably. Combined with an intake and exhaust, gains can exceed 20%.
Cold Air Intake Systems: Cooler Air, Better Flow
Factory air intake systems are designed for noise suppression and cost efficiency, not maximum airflow. An aftermarket cold air intake draws cooler, denser air from outside the engine bay, increasing oxygen content and potentially adding horsepower.
Key Benefits
Aside from mild power gains, intakes often reduce intake restriction and produce a more aggressive induction sound. On the Integra Type S, high-quality intakes from brands like PRL Motorsports or AEM are well-researched and proven.
Cost Breakdown
- Intake kit: $200–$600
- Installation: 1–2 hours DIY (free) or $100–$300 professional labor
- Optional heat shield or cold air box: $50–$150 extra
Total Estimated Cost: $200–$900
Expected Performance
Solo intake gains are modest: roughly 5–10 horsepower at the wheels. The real value comes when combined with a tune, as the intake reduces restriction and the tune can adjust for the increased airflow.
Exhaust System Upgrades: Reducing Backpressure
The factory exhaust system is a compromise of noise regulations, emissions, and cost. An aftermarket cat-back or turbo-back exhaust reduces backpressure, allowing the engine to expel gases more freely. This frees up horsepower and often improves the sound character without being unbearably loud if you choose the right setup.
Types of Exhaust Upgrades
- Cat-back exhaust: Replaces piping from catalytic converter back. Adds 5–10 hp. Cost: $500–$1,200.
- Axle-back exhaust: Replaces only muffler and tips. Minimal power but lighter and better sound. Cost: $300–$800.
- Downpipe/front pipe: Replaces catalytic converter section—significant gains when tuned. Cost: $400–$800.
- Full turbo-back or header-back: Best but priciest. Gains up to 15–20 hp on tuned cars. Cost: $1,200–$2,500.
Installation Considerations
Cat-back systems are DIY-friendly with basic tools (jack stands, wrenches) and take 1–3 hours. Downpipes often require more effort due to tight clearances and stubborn bolts. Professional installation: $150–$500 depending on complexity.
Total Estimated Cost (cat-back + install): $650–$1,700
Expected Performance
On a stock tune, a cat-back exhaust alone may only add 3–5 hp. But paired with a tune and intake, the combination can yield 15–30 wheel horsepower. The exhaust also reduces weight (some systems save 15–30 lbs).
Suspension Enhancements: Beyond Straight-Line Speed
Power is useless if you can’t put it down. The Integra Type S already has a well-sorted chassis, but coilovers, sway bars, and bushings can dial in even better handling for track days or spirited driving.
Coilover Kits
Adjustable coilovers allow ride height, damping, and often camber adjustment. Brands like KW Automotive and Tein offer proven solutions.
- Budget coilovers: $800–$1,200 (less damping adjustability)
- Mid-range: $1,200–$2,200 (good performance and comfort)
- High-end (KW V3, Öhlins): $2,500–$4,000
- Installation: 3–6 hours DIY or $300–$600 professional
- Corner balance & alignment: $200–$400
Total for coilovers + install + alignment: $1,300–$4,800
Sway Bars and End Links
Upgraded anti-roll bars reduce body roll and improve cornering stability at a lower cost than coilovers.
- Front/rear sway bars + links: $300–$600
- Installation: 1–3 hours DIY or $100–$300
Total for sway bars: $400–$900
Expected Performance Gains
Suspension modifications don’t directly increase horsepower, but they allow you to carry more speed through corners, reduce lap times, and improve driver confidence. Expect significant improvements in cornering grip—often measurable seconds per lap on a track.
Tire and Wheel Upgrades: The Single Best Performance Investment
No modification transforms a car’s acceleration, braking, and cornering more than better tires. Lighter wheels also reduce unsprung mass, helping suspension respond faster.
Wheels
Aftermarket wheels in 18x9 or 18x9.5 inches with performance rubber are common. Quality cast or flow-formed wheels range from $200–$500 each. Forged wheels start at $500+ each.
- Set of four wheels (cast/flow-formed): $800–$2,000
- Set of four forged wheels: $2,000–$4,500
- Installation & mounting: $60–$120 (if not DIY)
Tires
High-performance summer tires like the Michelin Pilot Sport 4S or Bridgestone Potenza RE-71RS provide stickier grip.
- Set of four: $600–$1,200 for 200TW or 300TW rubber
- Installation & balance: $80–$160
Total for wheel/tire package: $1,500–$5,500+ (depending on wheel choice)
Expected Performance
Better tires can reduce 60–0 braking distances by 10–20 feet and improve lateral grip by 0.1–0.2g. Acceleration from a standstill improves because of reduced wheel spin. Expected 0–60 mph time reduction of 0.2–0.5 seconds purely from grip.
Putting It All Together: Full Build Cost Estimates
To give you a realistic picture, here are three common build tiers for the Integra Type S:
| Build Tier | Parts & Labor | Total Cost Range | Expected HP Gain |
|---|---|---|---|
| Stage 1: Street Plus (tune + intake + cat-back) | Tune: $800 Intake: $400 Exhaust: $1,000 Install DIY: $0 | $1,800–$2,500 | 30–60 whp |
| Stage 2: Canyon Carver (Stage 1 + downpipe + coilovers + tires) | Stage 1: $2,200 Downpipe: $600 Coilovers: $1,800 Tires: $800 Install pro: $700 | $5,200–$7,000 | 60–100 whp |
| Stage 3: Track Weapon (Stage 2 + sway bars + lightweight wheels + custom tune) | Stage 2: $6,500 Sway bars: $700 Wheels: $2,000 Custom dyno tune: $800 Install & alignment: $900 | $10,000–$13,000 | 80–130 whp |
Note: These are ballpark US dollar figures. Actual pricing depends on location, brand choices, and whether you negotiate packages.
Hidden Costs to Plan For
Modification projects often exceed initial budgets. Be prepared for these additional expenses:
- Fuel system upgrades if you exceed stock injector/pump capacity (add $500–$1,500).
- Clutch/flywheel upgrade if torque surpasses the factory clutch’s limit (add $800–$2,000).
- Intercooler or oil cooler for sustained track use (add $500–$1,200).
- Labor overruns if unforeseen issues arise (e.g., seized bolts, damaged parts).
- Alignment and corner balancing after suspension work ($200–$500).
- Insurance premium increases—some insurers raise rates for modified cars.
Evaluating the Return on Investment
Is it worth spending thousands to make the Integra Type S faster? That depends on your goals. If you’re building a weekend track car or want more thrilling acceleration, the cost per horsepower is lower than buying a more expensive car. For example, $10,000 invested in a Stage 3 build can yield 800–900 whp, transforming the car into something that rivals exotics. However, resale value typically drops for heavily modified cars, so consider whether you’ll keep it long-term.
Final Thoughts: Plan, Budget, and Enjoy the Build
Modifying an Acura Integra Type S is a rewarding path to more speed, but it demands realistic financial planning. Start with a tune and intake for the most immediate gains, then add exhaust and suspension as your budget allows. Always factor in professional tuning to maximize safety and performance. With careful choices, you can build a car that delivers a thrilling experience without breaking the bank.
For more detailed installation guides and community-proven part combos, check out forums like IntegraForums and aftermarket suppliers such as PRL Motorsports for parts lists. Happy building.