HKS x Studie - HKSTUDIE Exhaust - 2021+ BMW M3 G80 Comp / M4 G82 Comp
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A one-of-a-kind tail tip design
- A specially designed tail tips paid homage to the legendary "BMW 3.0 CSL". It has a thick-walled slash-cut tail tips, emphasizing the texture of the edges, and the surface is blasted to express a dull glossy finish. Features a sound deadening inner slits to create a one-of-a-kind tail tip design.
Gentle yet powerful sound
- The OEM exhaust of the G8X generation M produces a sporty sound that is distinctive of the M series. Since replacing only the main muffler does not produce a significant change in sound, the HKSTUDIE exhaust features a layout that deletes the middle muffler. The unique sound tuning based on frequency analysis has achieved gentle yet powerful sound.
Compliant with Japan's vehicle inspection regulations
- Although it gives off a powerful sound, it still meets the strict sound regulation of UN ECE-R51.03 Phase 2. This products can be used safely for daily use and is compliant with Japan's vehicle inspection regulations.
Reduce exhaust pressure by up to 35%
- Optimized pipe layout and a main muffler without restrictions reduce exhaust pressure by up to 35% compared to the OEM muffler. This results in increased boost responsiveness and higher output at high RPM range, and increases power output by up to 5kw and torque by up to 15Nm.
A 2-year or 30,000 km product warranty
- By manufacturing in-house at our factory in Japan and conducting strict quality control, we are able to offer a 2-year or 30,000 km product warranty from the time of purchase.
Performance:
35% reduction in exhaust resistance (max.)
- By optimizing the layout, adopting a straight pipe without squeezing and the internal structure of the main muffler without restrictions, exhaust resistance is significantly reduced compared to the OEM exhaust as shown in the graph below as a result of in-house testing.
Increases output +5kw and torque +15Nm
- Lowering exhaust pressure leads to higher engine power output. The response of the turbo boost is improved in the low rpm range, and torque is increased by up to 15Nm. As for power output, the better exhaust flow leads to more power at higher engine speeds, increasing the power by up to 5kw. All tests at our headquarters were conducted using vehicles in stock condition except for the exhaust system. The difference in power output between OEM and HKSTUDIE exhaust systems will widen further when the ECU is analyzed and tuned to increase power output.
Exhaust sound tuning based on frequency analysis
- Generally, low-frequency noise below 100 Hz are said to be unpleasant and oppressive, and are described as drone sounds in the cabin of a car. HKSTUDIE produced various prototype exhausts and conducted sound frequency analysis.
- General exhaust with internally constructed mufflers will have a marked drone sound (see the graph below around 100 Hz), while the OEM exhaust successfully muffles the low-frequency sound.
- This drone sound is especially noticeable when cruising at 80 to 100 km/h on highways. HKSTUDIE exhaust has newly designed the inside of the muffler silencer to suppress the muffled sound and to emphasize the mid-frequency sound above 200Hz, which is considered to be a sporty sound.
- Thanks to its gentle sound during cruising, the driver and passengers will not feel any discomfort, and once the driver steps on the gas pedal, they will enjoy the powerful sound.
Exhaust Sound Level
- This product has been inspected and certified for UN-ECE R51.03. The vehicles equipped with the exhaust certified by R51.03 is applied the Japanese noise regulation of year 2016, and the noise value indicated on the performance confirmation label shall be the standard value, and the standard value +5dB shall be the regulation value. (In the case of this product, the noise value indicated on the performance confirmation plate is 97 dB, so the Japanese exhaust noise regulation limit value is 102 dB)
- The measurement RPM for exhaust noise is taken at 3,750 rpm, which is the RPM indicated in the remarks column of the vehicle inspection certificate. The measurement point is as described in R51-03. As shown in the figure above, the microphone should be placed at a position 0.5 m away from and at a 45-degree angle to the furthest outside exhaust tip from the longitudinal centerline of the vehicle.
FAQ
At T1 Motorsports, Not only do we specialize in aftermarket parts, but we also specialize in all mechanical repairs. We are a full-service mechanical shop, with skilled technicians geared towards OEM and Aftermarket enthusiasts.
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All processed orders that have not shipped will incur a 6% processing fee, this is mainly to cover any payment processing and cancelation fee with the manufacturer or warehouse. A processed order is an order that has already been put in our system and the product has been taken out of inventory and moving towards the packing and shipping face.
On special order or custom-made orders, the processing face is indicated when the manufacturer has received our order. Please be courteous and notify us ASAP if you wish to cancel any order(s) that were recently placed in order to prevent it from shipping out.
Due to the nature of racing and performance vehicles, no returns will be accepted on special order items, opened, installed, incomplete, or otherwise used products. If a product is ordered and not wanted, the UNUSED item can be returned within 30 days after the product has been delivered. This does not apply to SPECIAL ORDER items. Once the product is returned, you have two options for your refund:
You may have your purchase refunded back on your original payment method minus a 20% restocking fee of the total amount. In this case, please know that the initial shipping is not refundable (free shipping items still incur shipping chargers which MUST be deducted on a return). All items wanting to be returned MUST be reported within 30 days of delivery date. If you are still browsing and want an alternate product, we can provide you with a full credit minus shipping costs as a T1 Motorsports store credit. Some brands are excluded and may incur up to a 10% restocking fee. Please contact us to confirm.
On both refund options, a return shipping label may be provided if you are unable to ship the product(s) back using your own method of shipping. This shipping cost will be deducted from your total refund or credit.
What Should I Do If My Ordered Product Doesn't Fit?
We strive on making our fitment guide perfect. If you have any fitment issues regarding your product, please contact us by email or phone and we will solve your issue.
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- Once you receive an email confirming that your order is ready for pickup, you may collect it at our store during regular business hours.
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- You have 60 days from the date your order status is updated to "Ready for Pickup" to collect your order, unless a different pickup date has been agreed upon.
Orders not picked up within the 60-day window will be deemed abandoned and canceled. No refunds will be issued for abandoned orders.
Armstrong G
Had a great experience purchasing winter tires and rims here. Straightforward communication, promise delivered.
AeroWolf
Picked up my exhaust from T1 Motorsports. Awesome customer service from beginning to end. Every email I sent received a response very quickly and they were very informative and polite. Highly recommend for high-end parts!
Sandra G
Excellent experience with T1 motorsports. They were super responsive, very flexible with their service despite the holiday season and had competitive prices with knowledgeable staff