What gains does the 70F Plus Front Pipe deliver?

By swapping the restrictive factory front pipe for a 66mm-bore stainless straight pipe, the 70F Plus Front Pipe improves exhaust efficiency across the whole range. Under boost, torque and power rise significantly through the mid and high rpm range and acceleration feels notably less stressed.

Why is the flange 12mm thick?

The FK8's engine moves considerably under shift loads, and the front pipe has to live with that movement. J's Racing mills the flange to 12mm and seals it with a strong genuine-type O-ring gasket so the joint stays leak-free under years of hard use.

Will it work with my aftermarket exhaust?

Yes. Even on cars that already run an aftermarket muffler, the front pipe adds further exhaust efficiency and cruising comfort, and it is compatible with J's Racing's own FK8 exhaust products.

How much louder does the car get?

Expect roughly a 5 dB increase even with a safety-standard muffler installed. It is a noticeable, harder-edged note under load rather than a drone.

Is it emissions legal?

No. The pipe does not conform to Japanese vehicle inspection and is not CARB approved, so it is not for sale in California or other states requiring CARB certification. It is intended for competition use.

Description

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Description

J’s Racing 70F Plus Front Pipe for FK8 Honda Civic Type R [T304-K8-70F]

The J’s Racing 70F Plus Front Pipe replaces the FK8 Honda Civic Type R’s factory front pipe with a stainless straight pipe of 66mm inner diameter and 70mm outer diameter, improving exhaust efficiency across the entire range. With boost active, torque and power climb significantly through the mid and high rotational range, acceleration loses its stressed feeling, and the whole car drives more fluidly.

Construction

The main pipe is 2mm-thick SUS304 stainless steel chosen for strength, formed as a special handmade bent pipe with a handmade flange. Because the FK8’s engine moves considerably under shifting loads, the flange is milled to a full 12mm thickness and seals against a strong genuine-type O-ring gasket, so the pipe supports the engine’s movement without leaks or fatigue.

Features

12mm-thick milled flange with a strong genuine-type O-ring gasket
66mm inner diameter, 70mm outer diameter straight pipe design
Handmade special bent pipe and flange
Improves exhaust efficiency across the entire rev range
Stacks with an aftermarket muffler for further gains in efficiency and cruising comfort

Specifications

Material: SUS304 stainless steel
Pipe Thickness: 2 mm
Inner Diameter: 66 mm
Outer Diameter: 70 mm
Flange: 12 mm milled, with genuine-type O-ring gasket
Sound Change: approximately +5 dB (even with a safety-standard muffler installed)

Applications

Honda Civic Type R: FK8 | 2017-2021 | 2.0L K20C1 Turbo

Notes

Volume increases by about 5 dB even with a muffler conforming to safety standards
This product does not conform to Japanese vehicle inspection
This item is not CARB approved and is not for sale in California or other states requiring CARB certification.
Compatible with other J’s Racing exhaust products
For pairing advice with a full exhaust system, contact us

Frequently Asked Questions

What gains does the 70F Plus Front Pipe deliver? By swapping the restrictive factory front pipe for a 66mm-bore stainless straight pipe, the 70F Plus Front Pipe improves exhaust efficiency across the whole range. Under boost, torque and power rise significantly through the mid and high rpm range and acceleration feels notably less stressed.
Why is the flange 12mm thick? The FK8’s engine moves considerably under shift loads, and the front pipe has to live with that movement. J’s Racing mills the flange to 12mm and seals it with a strong genuine-type O-ring gasket so the joint stays leak-free under years of hard use.
Will it work with my aftermarket exhaust? Yes. Even on cars that already run an aftermarket muffler, the front pipe adds further exhaust efficiency and cruising comfort, and it is compatible with J’s Racing’s own FK8 exhaust products.
How much louder does the car get? Expect roughly a 5 dB increase even with a safety-standard muffler installed. It is a noticeable, harder-edged note under load rather than a drone.
Is it emissions legal? No. The pipe does not conform to Japanese vehicle inspection and is not CARB approved, so it is not for sale in California or other states requiring CARB certification. It is intended for competition use.

About J’s Racing

J’s Racing is one of Japan’s most respected Honda tuning houses, developing parts the hard way: on real race tracks in Super Taikyu endurance competition and time attack rather than on paper. From aero and titanium exhausts to suspension and driveline components, every product carries lessons learned from decades of racing Hondas at the limit. Bulletproof Automotive imports J’s Racing parts directly from Japan, bringing authentic, race-proven JDM engineering to enthusiasts in the US and worldwide.

Additional Information

The Bulletproof Automotive website contains many thousands of products purchased in multiple different currencies. All of the prices are entered manually and accurately at the time of entry. Due to the consistently fluctuating international exchange rates, at times prices may not be able to be honored at their original intended rate. We apologize for any inconvenience this may cause, unfortunately our website is unable to compensate dynamically for what can at times be volatile changes in the cost of items due to currency values fluctuating, changes in prices from suppliers, changes in shipping and import duties, and other factors. Rest assured that any order you place on line will be at zero risk to you in this area. If in the event your order cannot be fulfilled at the original intended website price we will offer you a 100% refund, no questions asked. We will continue to do our best to maintain updated prices and we will always continue to offer our price match guarantees as well to ensure our prices are always the best for you. In short, prices may change without notice. It is always advised to give us a call prior to placing your order online to confirm availability and to confirm current pricing.

Shipping Policy

Items that are in stock in the US, either at Bulletproof’s warehouse or at a supplier’s warehouse, are generally delivered within 7-10 days. Special order items from overseas take considerably longer. As a courtesy Bulletproof offers delivery estimates to our customers which take into consideration manufacturer availability and shipping schedule. These estimates represent our best guess based on previous orders from the manufacturer and do not in any way imply a guaranteed delivery window. Many manufacturers work in a “just in time” inventory system and often take 2-20+ weeks to produce an item once an order is submitted. All deliverable items are then sent to our Japanese warehouse. Bulletproof ships a minimum of one full ocean freight container every month from Japan, oftentimes more than one a month. Ocean freight takes an average of 4 weeks. Typically it breaks down to one week in Japan for paperwork and customs, two weeks by boat and one week in US customs/clearance. Due to the wide number of variables between manufacturer and shipping schedules, delivery estimates are simply just that – estimates. We attempt to estimate conservatively and we usually deliver faster than our estimates suggest. It is not Bulletproof’s policy to guarantee delivery time of any special order item, this is impossible for us to do. By ordering you acknowledge that there is no required delivery ETA and an order may not be canceled or altered due to manufacturing or shipping delays, all ETA’s are provided as a best guess only. Please review the full Terms & Conditions here.

BP Pricing Difference

We do pricing a little differently on our JDM brands and we believe in making things simple and clear. No hidden fees or surcharges. Every price you see includes the shipping cost to our office in Los Angeles, California and all the associated taxes/duties/fees for bringing the products into the US. The only shipping you ever pay is from our facility in the US to your location. Be wary of resellers that don’t include the cost of international shipping in their pricing on JDM parts. While we believe we’ll always have the lowest all-in price on JDM products, we offer a price match guarantee for all authentic parts purchased from authorized dealers as well. For many international customers, it’s much more affordable to ship from the USA than from Japan directly, as the air freight and ocean freight costs are typically much less. However, for customers looking to ship directly from Japan outside of North America, or domestically in Japan, we can provide pricing specifically for that scenario. Please do not hesitate to contact us with any pricing questions or concerns. Please email us at sales@bulletproofautomotive.com with any inquiries.

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