Tantrumwerks Exhaust for the Audi/VW 1.8T
by Fast Intentions

All exhaust products are made to order.
Please allow 5-7 business days before your product is shipped.

 

Fast Intentions 1.8T Exhaust Products

The Audi/VW 1.8T engine is a fixture in many vehicles between the two manufacturers. A 1.8L, 4-cylinder, turbocharged engine that comes in two configurations: Longitude and Transverse. The longitude engine is found in the Audi A4 and VW Passat. The transverse engine is found in the Jetta, Golf, GTI.

The fact that the car is turbocharged allows room for exhaust modifications that make your engine breathe better & produce horsepower. The engine is fairly robust and can handle a bevy of modifications that include turbo swaps with K03, K04 and Garrett turbos.

Fast Intentions makes a series of exhaust modifications that are designed to replace components that reside after the turbo & before the cat-back exhaust. The product line includes three components: High-flow catalytic converters (HFC), Testpipes and Downpipes. All components are made of Stainless Steel, welded from the inside, ported & polished for a smooth surface, and mandrel bent on-site at Fast Intentions.

High-Flow Catalytic converters are made to bolt directly to K03 & K04 turbos. The HFC is a 400-cell Carsound converter that will pass emissions tests. They are built with laser-cut 3-bolt flanges and two oxygen sensor bungs for proper ECU readings. The inlet diameter of the HFC is 2.5” at the turbo.

Testpipes are straight pipe replacements for HFC’s. These are designed for off-road & track use only. They are made in 2.5” & 3.0” diameters. We recommend using 2.5” diameter for all K03 & K04 applications. If using a testpipe, you will encounter a Check Engine Light (CEL) because the ECU does not see a difference in the exhaust readings recorded by the oxygen sensors once they are released from the turbo. We do not have a solution for eliminating the CEL at this time. If you encounter this, you will need to use a VAG-COM or other specific diagnostic software to clear any fault codes.

Downpipes are the transition pipe from the HFC or testpipe to the cat-back exhaust system. Downpipes are made in 2.5” diameter. All downpipes have a bellows-style flex joint built into it to accommodate some engine movement. It is important to note that all downpipes from Fast Intentions must be welded into your existing cat-back exhaust system! LaBree provides its clients with a small piece of pipe with a 3-bolt flange that is meant to be bolted onto the back of the DP & welded into your system.

All 1.8T exhaust components come with mounting hardware and a lifetime warranty from Fast Intentions against workmanship & product defects. Exhaust products from Fast Intentions are made to order. Please allow 3-5 days lead time prior to actual shipment of your order.

“The Shotgun”

The Shotgun is the latest innovation from Fast Intentions. This product is made specifically for 1.8T Longitude engines that have undergone Stage 3 turbo upgrades using Garrett GT series turbos. Anyone that is using an APR, TurboByGarrett.com or some sort of Garrett GT series turbo, this testpipe is for you!

For this application, Fast Intentions used an application that helped them first launch in the import exhaust business…the 300ZX twin turbo. They used the flange & spacer from the 300ZX application to make the shotgun come to life for 1.8T Stg.3 applications.

The Shotgun bolts directly to your Garrett GT series turbo. There are no adapters needed to make your exhaust bolt to the shotgun. On the split side of the shotgun is a Garrett GT series turbo specific flange. The “handle” side of the shotgun consists of a 3-bolt flange that bolts directly to Fast Intentions, OEM & aftermarket downpipes.

The Shotgun is the missing link needed to obtain “Tantrum-causing” performance for your 1.8T Stage 3 application!!!


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Fast Intentions Exhaust Products for the Audi/VW 1.8L & 2.0L Turbo

 

 Stainless Downpipe (A4, Passat)
$250

 Stainless Downpipe (Transverse)
$260
 Stainless Hi-Flow Cat (A4, Passat)
$335
 Stainless Hi-Flow Cat (Transverse)
$325
 Stainless Testpipe (A4, Passat)
$210
 Stainless Testpipe (Transverse)
$210

**Prices do not include CA Sales Tax or shipping costs.
Dealer inquiries welcome.


Fast Intentions "Shotgun" Testpipes for the Audi A4/VW Passat 1.8L Turbo

 

 Shotgun Testpipe (A4, Passat)
$350

 Cat Relocation Kit
$675

**Prices do not include CA Sales Tax or shipping costs.
Dealer inquiries welcome.


 

Disclaimer:
TantrumWerks & Fast Intentions cannot guarantee the exact same results as the test car results that are visible on our website. Your results will vary depending upon your other aftermarket products, software, and any other unrelated issues with your car prior to installation of the downpipes. TantrumWerks & Fast Intentions cannot be held responsible for equipment failures or performance decreases that are not directly related to the downpipes themselves or incorrect installation.

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