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Acura Integra GS-R Cold Air Intake Kit — 1994–2001 1.8L B18 (RS, LS, GS, SE)
This Flashark cold air intake kit replaces the entire factory intake tract on the 1994–2001 Acura Integra — airbox, paper panel filter, snorkel, and resonator box — with a mandrel-bent aluminum pipe and a washable open-element cone filter. That single smooth bore from filter to throttle body sharpens throttle response and brings back the B18 induction tone the factory spent two decades muffling. The pipe mounts to the factory bracket points using the included silicone coupler, stainless clamps, and hardware, with no cutting, no fabrication, and no tune. Built for the 1.8L B18B1 and B18C1 in RS, LS, GS, SE, and GS-R trims, coupe or sedan, and fitted in about 30 to 60 minutes with basic hand tools.
Specifications
| Specification | Detail |
|---|---|
| Intake pipe material | Aluminum (T-304) |
| Pipe finish | Polished aluminum with a red powder coat |
| Pipe construction | Mandrel-bent, one piece from filter to throttle body |
| Pipe size | 2.75 to 3.0 inches |
| Air filter | Open-element cone filter, high-flow dry media, washable and reusable |
| Filter service | Clean and reuse; no filter oil required |
| Throttle body coupler | Reinforced silicone |
| Clamps | Stainless steel hose clamps, 3 included |
| Expected output range | Approximately 8 to 10 percent more horsepower and torque through the 3,500-6,000 RPM mid-range; results vary with engine condition, ECU calibration, exhaust flow, and supporting hardware |
| Engine compatibility | 1.8L B18B1 DOHC (non-VTEC) and 1.8L B18C1 DOHC VTEC (GS-R), naturally aspirated |
| Chassis platforms | DC2 and DB8 |
| Installation time | Approximately 30 to 60 minutes with basic hand tools |
| Tuning | Not required for a bolt-on install on an otherwise stock B18 engine |
| Warranty | 1 year |
Key Features
- Red polished aluminum intake pipe: A mandrel-bent aluminum pipe finished in red powder coat for a clean look in the Integra engine bay. Aluminum keeps the pipe light, resists corrosion through underhood heat cycles, and mandrel bending holds the full interior bore through every bend instead of collapsing the inner wall the way crush-bent tubing does.
- Replaces the entire factory intake tract: The stock DC2 and DB8 intake path runs from a plastic airbox with a paper panel filter, through a narrow rubber snorkel with tight-radius bends, to the throttle body. This kit removes everything from filter to throttle body and replaces it with a single straight-shot pipe for less turbulence.
- Washable dry cone filter, no oil required: The included open-element cone filter uses dry media, so there is no oil to apply and no over-oiling to contaminate the intake-air temperature sensor. When it loads up, clean it, let it dry completely, refit it, and carry on — no recurring filter cost.
- Gains across the mid-range: The factory restriction bites hardest between 3,500 and 6,000 RPM. Removing the paper filter and accordion tubing gives an expected output range of approximately 8 to 10 percent more horsepower and torque through that band, which is where you feel it pulling out of corners or merging onto a highway. Results vary with engine condition, ECU calibration, exhaust flow, and supporting hardware.
- Faster, more responsive throttle: With the airbox and snorkel no longer buffering the throttle plate from incoming air, the engine reacts more immediately to pedal input at low RPM and climbs the rev range more eagerly — one of the most noticeable changes on a daily-driven Integra.
- The B18 induction sound the factory muted: The factory intake used resonator boxes and thick plastic walls to keep cabin noise down. Removing that hardware lets the B18's natural induction character through — a deep mechanical growl under hard throttle that opens into the VTEC crossover note on the GS-R, while around-town driving stays civil.
- Direct bolt-on, no cutting and no tune: Brackets, coupler, clamps, and hardware are matched to the factory Integra mounting points, and the pipe slides onto the throttle body with the supplied silicone coupler. No ECU tune is required; the factory ECU adapts over roughly 50 to 100 miles of driving, and disconnecting the battery for about 10 minutes resets fuel trims for faster adaptation.
- Roughly 30 to 60 minute DIY install: A 10 mm and 12 mm socket set and a flathead screwdriver for the hose clamps are the main tools, plus about 15 minutes with the included instructions. Remove the factory airbox, snorkel, and resonator box, mount the pipe to the throttle body, attach the filter, and you are done.
Why Upgrade the Integra Intake?
| What Changes | Stock Factory Intake | Flashark Integra Air Intake |
|---|---|---|
| Intake pipe material | Plastic airbox and a rubber snorkel | Mandrel-bent aluminum, red powder-coated |
| Air filter | Disposable paper panel filter | Washable high-flow dry cone filter, reusable |
| Restriction at 5,500 RPM | High — paper filter, narrow snorkel, tight-radius bends | Low — open-element cone plus a larger smooth bore |
| Throttle response | Soft, buffered by airbox volume | Immediate, one pipe from filter to throttle body |
| Induction sound | Muffled — factory resonator boxes silence intake roar | Deep B18 induction growl, VTEC crossover under wide-open throttle |
| Power gain | Factory baseline | Expected output range of approximately 8 to 10 percent horsepower and torque in the mid-range (3,500-6,000 RPM) |
An open-element intake and a sealed cold air box trade off differently for intake-air temperature, induction sound, and daily drivability.
Who This Kit Is For
This Flashark cold air intake kit replaces the factory airbox and intake tube on the 1994–2001 Acura Integra with a 1.8L B18B1 or B18C1 engine — RS, LS, GS, SE, and GS-R, in coupe, hatchback, or sedan form.
For you if…
- You drive a B18 Integra and want a first bolt-on that changes both response and sound.
- You would rather clean and reuse a cone filter than keep buying paper panel filters.
- You want the factory airbox, snorkel, and resonator box gone without cutting or fabrication.
- You have confirmed your engine code and that your intake tract, throttle body, and intake manifold are still factory.
Not for you if…
- You want the intake to stay factory-quiet.
- You need an OEM replacement airbox, panel filter, or intake hose.
- You expect a guaranteed MPG gain.
- You drive an Integra Type R with the B18C5 engine, or a Civic with a B18 swap — this pipe is shaped for a factory DC2 or DB8 engine bay.
- You are in California or another CARB-adopting state and need a part that carries a CARB Executive Order number.
Comparing the wider range of Honda and Acura applications? Browse Honda and Acura cold air intake kits to match another platform.
Check Before Ordering
- Vehicle fitment: Confirm your Integra is a 1994–2001 model with a 1.8L B18B1 (RS, LS, GS, SE) or B18C1 (GS-R) engine and factory throttle body position, intake routing, and mounting points. An engine swap, aftermarket intake manifold or throttle body, or relocated battery, strut bar, or wiring can interfere with the pipe or filter — message us with your VIN or engine code before ordering if your car is modified.
- Intake type: This kit uses an open-element cone filter that sits high in the engine bay behind the headlight, feeding a mandrel-bent pipe that runs to the throttle body. If you want a sealed airbox fed from outside the engine bay, this is not that layout.
- Filter and maintenance: The cone filter is dry, washable, and reusable, so there is no oil to apply and no re-oiling step to get wrong. Clean it when it looks loaded, let it dry completely, refit it, and make sure it is fully seated and securely clamped to the pipe.
- Sensors and ports: The install reconnects the factory intake-air temperature sensor and the factory breather hose. Check every hose, clamp, vacuum port, and sealing surface before startup — most post-install problems come from a loose coupler or an open port.
- Legality: This kit does not carry a CARB Executive Order number. See the Compliance Notice below for California and the CARB-adopting states.
- Install space and water: About 30 to 60 minutes with hand tools, and no cutting or fabrication. The filter sits high in the engine bay, but no intake is waterproof — avoid deep standing water and flooded roads.
What's in the Box
- 1× Mandrel-bent aluminum intake pipe
- 1× High-flow washable dry cone air filter
- 1× Reinforced silicone throttle body coupler
- 3× Stainless steel hose clamps
- 1× Mounting bracket with hardware (bolts and washers)
- 1× Installation instructions
Shipping & Returns
Free U.S. Shipping: Orders are typically processed within 1–2 business days and delivered within 7–9 business days. Additional charges may apply to remote areas.
30-Day Returns: Unopened and unused items in their original packaging may be returned within 30 days of receipt. Return shipping is covered for verified quality issues.
Worry-Free Delivery: Optional protection against eligible loss, theft, delay, or transit damage is available at checkout.
| Year | Make | Model | Trim | Engine |
|---|---|---|---|---|
| 1994–2001 | Acura | Integra | RS | 1.8L B18B1 DOHC |
| 1994–2001 | Acura | Integra | LS | 1.8L B18B1 DOHC |
| 1994–2001 | Acura | Integra | GS | 1.8L B18B1 DOHC |
| 1994–2001 | Acura | Integra | SE | 1.8L B18B1 DOHC |
| 1994–2001 | Acura | Integra | GS-R | 1.8L B18C1 DOHC VTEC |
This intake fits both the DC2 (3-door hatchback/coupe) and DB8 (4-door sedan) body styles. The throttle body location, intake routing, and mounting points are identical across the two body types.
⚠️ Fitment Note: The original factory page fitment table lists only "GS-R Sedan 4-Door." This is incomplete — the intake pipe, throttle body coupler, and mounting bracket are mechanically identical across all B18-equipped 1994–2001 Integra trims (RS, LS, GS, SE, GS-R) in both coupe and sedan body styles. The B18B1 and B18C1 share the same throttle body flange and intake routing geometry.
1994–2001 Acura Integra 1.8L B18 Cold Air Intake FAQs
Q1: Is this cold air intake legal in my state?
A1: Not legal for sale or use in California (and other CARB-adopting states). This kit does not carry a CARB Executive Order number, and an intake is treated as an emissions-related part in states that follow California's rules. Confirm your state and county requirements before ordering, and keep your factory intake parts if your vehicle may need to pass a visual inspection.
Q2: Will this cold air intake fit my 1994–2001 Acura Integra?
A2: It is an exact-fit application for every 1994, 1995, 1996, 1997, 1998, 1999, 2000, and 2001 Acura Integra with a factory-style 1.8L B18B1 or B18C1 engine — RS, LS, GS, SE, and GS-R, in the DC2 three-door coupe or hatchback and the DB8 four-door sedan. Before ordering, confirm your engine code, throttle body position, intake routing, and any previous engine-bay modifications.
Q3: Will this intake fit an Integra Type R or a B18-swapped Civic?
A3: No Type R fitment is claimed. The Integra Type R uses the B18C5 engine with a different throttle body, intake manifold, and intake configuration, so do not order this kit for a Type R just because it belongs to the same generation. Fitment is not guaranteed for a B18-swapped Civic either — the pipe is shaped for a factory DC2 or DB8 engine bay, and a swap can move the engine, throttle body, radiator, battery, and wiring, so custom piping, couplers, or brackets may be needed.
Q4: Is this a true cold air intake or a short ram intake?
A4: The open-element cone filter sits high in the engine bay behind the headlight rather than extending down into the bumper or the lower fender area, so the layout is closer to a short ram intake than to a sealed, fender-fed cold air box. In practice that means a shorter airflow path, easier filter access, a stronger induction tone, and less exposure to standing water than a low-mounted long-tube intake.
Q5: How much horsepower will this add, and will I feel it?
A5: The expected output range for this application is approximately 8 to 10 percent more horsepower and torque through the 3,500-6,000 RPM mid-range. Actual results depend on engine condition, intake-air temperature, ECU calibration, exhaust flow, fuel quality, elevation, testing method, and supporting modifications — on a mostly stock B18, the change in throttle response and intake sound is often easier to notice than a peak horsepower number. The larger, smoother pipe and open cone filter are designed to reduce restriction ahead of the throttle body, which is what makes response feel more immediate during rolling acceleration and higher-RPM driving.
Q6: Will a cold air intake improve my fuel economy?
A6: Fuel economy is dominated by driving habits. An intake alone cannot deliver a guaranteed MPG gain, so treat this kit as a throttle-response and induction-tone upgrade rather than a fuel-saving one.
Q7: Will this intake void my warranty?
A7: Under the Magnuson-Moss Warranty Act, an aftermarket part cannot void your factory warranty unless it is proven to have caused the failure. This kit is designed as a direct bolt-on replacement that keeps the factory sensor and breather connections in use.
Q8: Will it throw a check engine light (CEL)?
A8: A correctly installed intake should not cause a check engine light on its own. This kit is designed to reuse the factory intake-air temperature sensor and the factory vacuum and breather connections, so the engine management sees the inputs it expects. When a light or a rough idle does show up after a swap, the usual causes are a loose throttle-body coupler, an open vacuum or breather port, a disconnected intake-air temperature sensor, damaged wiring, or an intake leak — recheck every hose, clamp, sensor, and sealing surface. For a step-by-step diagnostic, see rough idle after cold air intake installation: the 7-point fix checklist.
Q9: Do I need a tune after installing this intake?
A9: No tune is required for a bolt-on install that keeps the factory sensor and breather connections on a stock B18B1 or B18C1. The factory ECU adapts to the extra airflow on its own, and disconnecting the battery for about 10 minutes resets fuel trims for faster adaptation. A custom tune becomes worthwhile when the intake is combined with camshafts, a larger throttle body, an aftermarket intake manifold, headers, higher compression, larger injectors, or other major modifications.
Q10: Does this kit use an oiled or a dry filter, and how do I clean it?
A10: The included cone filter uses washable, reusable dry media, so filter oil is not required and there is no over-oiling risk to the intake-air temperature sensor. Clean it according to the instructions, let it dry completely before refitting, and confirm it is fully seated and securely clamped to the pipe.
Q11: Will this intake make the B18 or the VTEC crossover sound louder?
A11: Yes. Removing the factory airbox and resonator lets more induction noise reach the cabin, especially at wide-open throttle and higher RPM, and the transition into the VTEC cam profile on a B18C1 GS-R becomes more pronounced. You get a deeper intake tone under acceleration that quiets down at cruise — sound is subjective, and it will not sound like a header, muffler, or cat-back exhaust change.
Q12: Is this intake safe to drive in the rain?
A12: Normal rain and wet-road driving are fine — the filter sits high in the engine bay, so it stays clear of spray as long as the hood and inner fender protection are intact. The system is not waterproof, though. Avoid deep standing water and flooded roads, because any intake can pull water into the engine if its filter or opening becomes submerged, and water ingestion can cause hydrolock and severe engine damage.
Q13: What's included in the box, and what do I still need?
A13: The kit ships with the mandrel-bent intake pipe, the high-flow dry cone filter, the reinforced silicone throttle body coupler, three stainless steel hose clamps, a mounting bracket with bolts and washers, and installation instructions. You supply basic hand tools — 10 mm and 12 mm sockets plus a flathead screwdriver for the clamps — and the factory intake-air temperature sensor and breather hose are reused, not replaced.
Q14: How difficult is it to install this Acura Integra intake?
A14: It is a straightforward bolt-on that typically takes about 30 to 60 minutes with basic hand tools. Remove the factory airbox, snorkel, and resonator box, connect the new pipe to the throttle body with the silicone coupler and stainless clamps, reconnect the sensor and breather hose, secure the mounting bracket, and attach the filter. Before driving, confirm the pipe clears the hood, battery, wiring, radiator hose, and any moving components, and recheck every clamp after the first test drive.
Q15: Is the intake pipe actually red?
A15: Yes. This is the red version of the Integra intake kit, with a red powder-coated mandrel-bent aluminum pipe built to stand out in the engine bay. The finish is cosmetic and does not change fitment or how the intake works. Inspect the coating periodically for damage from contact with nearby bodywork or engine components.
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