Tag: catalyst

Mercedes CLS55 AMG W219, Replacing The Old SAI Hoses

Decided to replace the 2 old Secondary Air Injection (SAI) hoses on the front of the big V8 M113k engine. As I pulled them of, they started to deteriorate, so I was just in time. The SAI system helps the catalysts heat up faster in a cold start situation.

Partnr 1132381082
Partnr 1132381082
Old vs New SAI hose
Rubber bung under the SAI hose
New SAI hose in place
Old SAI hose (drivers side)
Old & new SAI hose (drivers side)
Result! Progress!
Just in time



Volvo S80 2.4T BSR Tuning 3″ Downpipe

To upgrade the performance on any turbo powered car, you need “breating” upgrades. The car needs to inhale better (intake modifications), but also exhale better (exhaust modifications).

The most important component in the exhale process is the downpipe, the first pipe after the turbo. Upgrading this to a larger diameter, will allow for quicker turbo spool, which helps in scavenging but also in building boost.

As a pleasant side effect, the exhaust note will also be more throaty! The S80 has very limited options on paper, but I was able to buy and fit this with help from J&D Auto Onderdelen, who helped me tremendously in the pre-sales process (making sure that everything would fit). I can highly recommend them!

It’s a quite expensive upgrade, but well worth it.

BSR 3" Downpipe with Sports Catalyst

BSR 3" Downpipe with Sports Catalyst

BSR 3" Downpipe with Sports Catalyst

BSR 3" Downpipe with Sports Catalyst

Volvo S80 2.4T 3" BSR Downpipe (Inside view)

It’s highly recommended to get some new nuts for securing the downpipe.

Volvo S80 2.4T Genuine Parts (Locking Nuts)

Old vs new, look into the differences in the diameter of the neck.

Volvo S80 2.4T 3" BSR Downpipe

Volvo S80 2.4T BSR 3" Downpipe + New Catback

Volvo S80 2.4T BSR 3" Downpipe + New Catback