BuyAutoParts New Turbocharger

The stock turbo (either the AN made by us or the ON made by Borg Warner) is rated at 150hp.  The High performance turbo (HP) is rated at 225hp.   These are 'bench numbers' so you will not get a 50% boost in real life.   Expect something closer to 20-30% boost in 'wheel horse power' when on the car.  

Flashing the engine after an HP install is also recommended for the engine computer to recognize the larger turbo and adjust for it. 

Thank you for your inquiry. The standard turbo should be about 150hp in comparison to the high performance, which can produce up to 225hp.

Thank you for your inquiry. The turbocharger on this listing does not include gaskets. We do carry the turbocharger as part of a kit including the gaskets, which you can find by clicking on this link.

We do stock the KO4 from Borg Warner but it is not listed on our website. Please contact our sales department at 888-907-7225 for a quote.

This turbo (40-30002 SG) is a stock replacement that's going to fit and function just like OEM. If you have a few other bolt-on mods, it shouldn't be an issue with this turbo, but we also have a K04 upgrade available here:

https://www.buyautoparts.com/buynow/40-30002_SH

The K04 has a slightly larger compressor housing that can flow more air and create more power, while still retaining a response close to the OEM K03; none of the lag traditionally associated with a big turbo. If you need to replace your turbo anyway, it's not a huge price increase, and it's much better suited for the higher dyno numbers you're trying to get.

This turbo (40-30002 SG) is a stock replacement that's going to fit and function just like OEM. If you have a few other bolt-on mods, it shouldn't be an issue with this turbo, but we also have a K04 upgrade available here:

https://www.buyautoparts.com/buynow/40-30002_SH

The K04 has a slightly larger compressor housing that can flow more air and create more power, while still retaining a response close to the OEM K03; none of the lag traditionally associated with a big turbo. If you need to replace your turbo anyway, it's not a huge price increase, and it's much better suited for the higher dyno numbers you're trying to get.

This turbo (SKU 40-30002) fits all US-spec 1997-2006 Audi A4 and VW Passat 1.8T

Yes, this turbo (40-30002 BW) is a genuine OEM BorgWarner stock replacement, the exact same item you'd get from an Audi or VW dealer, and it's going to fit just like the stock turbo it's replacing.

This turbo (Stigan 847-1001, SKU 40-30002 SG) is a stock replacement that's going to fit and function just like OEM on all US-spec 1997-2006 Audi A4 1.8T or Volkswagen Passat 1.8T

No, this turbocharger (40-30002) is for a 1997-2006 Audi A4 1.8T or VW Passat 1.8T. Your SLK230 is supercharged, not turbocharged, but we have a replacement supercharger available here:

https://www.buyautoparts.com/buynow/40-10018

This turbo (Stigan 847-1435) does not include the gaskets, but we have it available with gaskets and an oil feed line (for better long-term reliability) here:

https://www.buyautoparts.com/buynow/40-80345_S5

No, this turbo (40-30002) is for 1996-2006 Audi A4 1.8T & 1998-2005 VW Passat 1.8T. What year is your Civic 1.5T? We can check to see if we have the correct turbo listed on the site.

Thank you for your inquiry. Yes. The AN, SG, R, and BW versions are all OEM replacements that comply with CA emissions. The high-performance upgrade versions, AW, HP, OH, and SH are not.

Thank you for your inquiry. Do you have a VIN. a 2001 VW 1.8L GTI was an Natural Aspirated when it was produced here in the USA. 

Thank you for your inquiry. Cannot ship to California or Colorado due to CARB restrictions.