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HKS 02-07 WRX / 04-07 STi Sport Exhaust - 31013-BF001
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HKS
SKU:
HKS31013-BF001
|
- UPC:
- 4957266931356
- Availability:
- Regularly stocked product
$890.00
Other HKS kits for this car
Fits these vehicles
- 2002-2007 Subaru ImprezaWRX
- 2004-2007 Subaru ImprezaWRX STI
- 2006-2007 Subaru ImprezaWRX Limited, WRX TR
- 2007-2007 Subaru ImprezaWRX STI Limited
Part details
- Part number
- HKS31013-BF001
- Manufacturer part number
- 31013-BF001
- UPC
- 4957266931356
- Brand
- HKS
- Part type
- Catback
- Box size:
- 20.40 × 12.90 × 59.20 (in)
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Read before you buy
HKS 02-07 WRX / 04-07 STi Sport Exhaust - 31013-BF001
$890.00
HKS 02-07 WRX / 04-07 STi Sport Exhaust - 31013-BF001
HKS 02-07 WRX / 04-07 STi Sport Exhaust - 31013-BF001 from ThreePiece.us — your source for aftermarket wheels, rims, and accessories.
Details
| Ltl | N |
| Mpn | 31013-BF001 |
| Proposition 65 | N |
| Special Order | N |
| Clearance Item | N |
Free shipping on wheel and tire packages. Financing available through Affirm.
- LTL:
- N
- MPN:
- 31013-BF001
- Proposition 65:
- N
- Special Order:
- N
- Clearance Item:
- N
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HKS
HKS 02-07 WRX / 04-07 STi Sport Exhaust - 31013-BF001
HKS 02-07 WRX / 04-07 STi Sport Exhaust - 31013-BF001 FAQ
It is listed for: 2002-2007 Subaru Impreza; 2004-2007 Subaru Impreza; 2006-2007 Subaru Impreza and more (see the full list above). Pick your vehicle on this page to check your exact year and trim.
The sound depends on the muffler and resonator design. A cat-back with a resonator stays closer to stock; an axle-back changes the tone more than the volume. Look for the maker's sound notes or a clip on this page.
Cat-back and axle-back systems bolt to the factory connection points. Headers and downpipes replace the factory pipe at the engine and may need new gaskets and hardware; see What's in the box.
A cat-back or axle-back needs no tune. Headers and downpipes change what the oxygen sensors see, so many cars need a tune or a sensor spacer to avoid a warning light.
Drone depends on the muffler and resonator design and your car's gearing. Systems with a resonator or an X-pipe drone less, and the maker notes when a system is built to be quiet at cruise.
An axle-back or cat-back is a jack-stands job with the right sockets and penetrating oil for rusty bolts. Headers and downpipes take more room and time, and a lift helps.
Most systems include the clamps and gaskets they need; see What's in the box. Reuse a factory gasket only if it is undamaged.
Yes — monthly options show right under the Add to Cart button. Affirm, Klarna, PayPal Pay Later and Snap Finance are offered at checkout, and checking what you qualify for does not affect your credit score.
Install and care: cat-back exhaust
Before you start
- Soak the factory flange bolts and hangers in penetrating oil the day before.
- Lay out the sections and clamps against What's in the box before anything goes under the car.
Do
- Hang the whole system loosely first, line it up, then tighten the clamps from the front back.
- Check for leaks at every joint with the engine running before the final tightening.
Don't
- Don't tighten any clamp fully until the whole system hangs straight.
- Don't reuse a crushed or torn factory gasket.