B6 A4 1.8T K04 Turbo Upgrade
Many said it would never happen, but APR is now proud to release our K04 upgrade kit for the B6 Audi A4 1.8T. Our kit includes the K04 turbo, the compressor inlet O-ring, three turbo to downpipe studs, one manifold to turbo gasket, four Bosch fuel injectors, and one turbo to cat gasket. This kit is a straightfoward turbo swap that makes a big difference in the power output of the car.
This kit makes solid gains in both horsepower and torque. With no other mods than an APR Exhaust, the kit made 247hp/286lb-ft on 93 octane gas. Although the exhaust is not required, it is highly recommended.
If you are currently an APR Stage I/I+ or II/II+ customer and purchase a K04 upgrade, you will receive all EMCS options for free.
The software for this kit is also available separately.
Dyno Performance
| Year | Engine | Option | Part Number | Price | |
|---|---|---|---|---|---|
| 2002 - 2005 | 1.8T | With Injectors | T2100003 | $2,299.00 | Buy one Now! |
| 2002 - 2005 | 1.8T | Without Injectors | T2100004 | $1,799.00 | Buy one Now! |
| Year | Engine | Option | Includes | Price | |
|---|---|---|---|---|---|
| 2002 - 2005 | 1.8T | Current APR Software Customer | Includes 4 Programs & all Options | $199.00 | Buy One Now |
| 2002 - 2005 | 1.8T | New APR Software Customer | Single Program Only | $699.00 | Buy One Now |
| Options | Pricing |
|---|---|
| ¹Prices applicable to the North American market only. | |
| ²Due to many variations between ECU's some programs/options may unavailable. | |
| For a total of 2 programs (i.e. - Stock and Chipped)² | $149¹ |
| For a total of 3 programs² | $219¹ |
| For a total of 4 programs² | $289¹ |
| Options | Pricing |
|---|---|
| ¹Prices applicable to the North American market only. | |
| ²Due to many variations between ECU's some programs/options may unavailable. | |
| Security Lockout² | $59¹ |
| Fault Code Erase/Throttle Body Alignment (FCE/TBA)² | $59¹ |
| Anti-Theft System² | $199¹ |
How to Purchase
APR provides two easy and painless methods to purchase your ECU Upgrade. You may visit any APR Dealer for local installation while you wait or you can remove your ECU and send it directly to APR Headquarters for installation. Typically your ECU is returned the same day we receive it. For ECU removal instructions see our Customer Support page.
If you're sending your ECU in to us, please print out and complete the order form below. Be sure to indicate which programs you would like to purchase, as well as the other information requested. For information on the program options, see above under the EMCS heading.
APR ECU Modification Order Form (119K pdf)
