SKU: 84761135161

RacingLine Boost Pipe Upgrade - Audi / 8Y / 8V / Mk3 / RS3 / TT-RS / 2.5TFSI

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Ships within 48 hours · Estimated delivery Aug 20 - Aug 25

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Description

RacingLine Boost Pipe Upgrade - Audi / 8Y / 8V / Mk3 / RS3 / TT-RS / 2.5TFSIWelcome to the ultimate Boost Pipe Kit for the Audi RS3 8V. 2 & 8Y and TTRS 8S. The RacingLine 5 Piece Boost Pipe package replaces the original plastic charge pipes with a larger 70mm diameter aluminum boost pipe and beautiful smooth flowing silicone replacement hoses, to help increase airflow under the demands of high heat and boost levels. The RacingLine 2. 5 TFSI Boost Pipe Kit for Audi RS3 8V. 2 & 8Y and TTRS 8S is a five piece kit to replace the


Welcome to the ultimate Boost Pipe Kit for the Audi RS3 8V.2 & 8Y and TTRS 8S. The RacingLine 5-Piece Boost Pipe package replaces the original plastic charge pipes with a larger 70mm diameter aluminum boost pipe and beautiful smooth-flowing silicone replacement hoses, to help increase airflow under the demands of high heat and boost levels. 

The RacingLine 2.5 TFSI Boost Pipe Kit for Audi RS3 8V.2 & 8Y and TTRS 8S is a five-piece kit to replace the factory soft flexible rubber pipes and replace them with beautiful reinforced silicone and aluminium replacement versions. The kit is a direct OEM replacement: simply remove the factory hoses, and replace them with the five uprated pipes. Simple.

The Aluminum Boost Pipe has a 70mm outer diameter vs the factory plastic boost pipe's 63mm OD. This maintains intercooler diameter outlet all the way to the throttle body. The Aluminum Boost Pipe also removes the factory wiring loom clearance dent – ensuring smooth laminar flow is maintained.


The Intercooler Outlook Hose incorporates two Convolutions and Stainless steel band – allowing for engine movement without risking hose collapse.

Stepped internal joint transitions give a port-matched laminar airflow path, greatly reducing turbulence versus other non-stepped designs. Of course the RacingLine hoses are pressure tested far beyond the turbo’s capabilities, allowing the system to maintain performance under extreme temperature and high-boost conditions.

By minimizing these restrictions, the smoother airflow and optimized hose routing ensures that the turbo meets less resistance and can thus perform more effectively - moving a larger volume of air and minimizing turbulence.

Constructed from reinforced high quality silicone, guaranteeing great rigidity to prevent deformation under high boost or heat loads. Fluorosilicone interior surface resists oil and gasoline permeation providing extra protection against deterioration.

A great upgrade for any remapped 2.5 TFSI running higher boost than standard.


Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 84761135161

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Janessa L.
Charlottesville, US
★★★★★ 5
I want to live in these
Color: 01-multicolour (4-pack), Size: Medium
I bought 4 different sets of new underwear. Unfortunately these came last. It’s unfortunate, because if they had come first I would have cancelled all my other orders or returned them and ordered more of these. I never want to wear anything else ever again; these are the comfiest undies I’ve ever owned, I want to live in them. I can wear them under pretty much anything except leggings or very tight pants (but let’s be honest, I don’t wear those anyway.) They are incredibly soft and breathable, they wash well, don’t roll, keep my thighs from rubbing, are comfy to sleep in, and the colors were true to the photo. Just a heads up, they are on the thin side and just a bit see through in the rear. I’m 5’5” 140lbs and the mediums fit perfectly, they go about mid-thigh.
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Reviewed in the United States on July 30, 2025
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Pistol King
Los Angeles, US
★★★★★ 5
Extremely comfortable
Color: 02-multicolour (4-pack), Size: X-Large
These are by far the softest and most comfortable underwear I have ever owned. The leg portion absolutely does roll up as so many others have mentioned, however, I did not find that to be uncomfortable at all just annoying that they don’t stay in place. I bought these specific underwear to see if it would help alleviate HS symptoms at all. They have definitely helped with wicking moisture away from the skin. More time will tell if it’s truly helpful for HS. For now, I will recommend these. They are thin, breathable, butter soft, wick moisture comfortable and I would buy again…maybe in a different style next time. I have washed them several times and they seem to be holding up rather well so that is also of supreme importance given the cost of the item. Again, I would recommend this item and plan on purchasing more in a different style very soon.
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Reviewed in the United States on September 13, 2025
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Amazon Customer
San Leandro, US
★★★★★ 3
Eaten by my Thighs
Color: 04-multicolour (4-pack), Size: X-Large
I wanted to love them. Sadly they have let me down. Pros: natural breathable fabric , super soft and comfortable, cotton panty gussets for feminine health and panty liners will stick!! Yay:). And the colors! They are great! But here’s the Con. And it’s the con of all cons. THEY RIDE UP!! Eaten by my thighs. I’m 5’6” and in the general area of 175. I fluctuate depending on how many times I visit the bakery! :) I don’t have a thigh gap but it is not a super tight thigh squeeze. I seldom have thigh climb but these do. I tried two different sizes to see if that made a difference. Nope. I was miserable at a recent theme park in these. I was wearing long heavy dresses and it was quite awkward to yank these legs down non stop. They feel amazing and they have all the requirements 1. Soft 2. Comfortable and stretches with you 3. Breathable with nice thin fabric. Not bulky 4. Natural fibers 5. Great colors If you are a person that is not blessed with Thunder Thighs, please order these. They are great! I wear them at home and to locations that I will not be doing a lot of walking at. I have washed them so many times and they look like new still.
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Reviewed in the United States on October 4, 2025
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Ally Cat
Fort Morgan, US
★★★★★ 5
Best Boxer Briefs for Women!
Color: 09-multicolour (4-pack), Size: Large
I rarely give 5⭐️’s but these deserve it! Hands down, the most comfortable material, stitching, waistband, moisture wicking and overall comfort. They sit right beneath my bellybutton, they wash and dry well and they’re sturdy. I have tried 3 styles and these are the best.
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Reviewed in the United States on February 7, 2026
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Lisa Hitchcock
Natrona Heights, US
★★★★★ 5
The best boy shorts ever.
Size: XX-Large, Color: Dark Colors
Consumers should know that these underwear are the most comfortable underwear on the market. Nice material, cut well and sewn perfectly. Did I mention, super soft? My favorites.
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Reviewed in the United States on December 21, 2025

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