BCS 3" Downpipe With Cat Delete & Link Pipe To Fit OEM System - Audi A3/S3 8P inc Sportback (Quattro Models)

BCS 3" Downpipe With Cat Delete & Link Pipe To Fit OEM System - Audi A3/S3 8P inc Sportback (Quattro Models)

The Powervalve Cat delete pipe is the ideal hardware upgrade when considering a power increase on the 2.0 TFSi engine. In addition, you will notice an audible uplift in the sound producing a nice sporty tone in the vehicle under acceleration.

The Powervalve downpipe and cat delete cat come with a connecting pipe to allow you to connect to the OEM cat-back system with the minimum of fuss. If you decide to upgrade to the full turbo-back system at a later stage then the connecting pipe simply swaps out again to allow the installation with a minimum of fuss.

The primary use for the Powervalve cat delete pipe variant is the track, or closed/private road, as this product is illegal for road use.

This product will not pass an MOT

As with virtually all of the TFSi engined vehicles, there is very little performance gain to be had from the cat-back system on its own, due to the incredibly restrictive downpipe and twin OEM cats. However, by opting for our unique downpipe and cat delete pipe, the power potential will massively increase, firstly with an initial 22bhp kinetic, and then once mapped all the way up to a stage 3 the following figures are achievable (along with suitable additional hardware...)

The TFSi K03-based AXX BWA performance guide

• Stage 2  custom remap                                                  275 hp        330 lbft
• Stage 2+ custom remap                                                 290 hp        360 lbft
• Stage 3 k04 0r k03 hybrid custom remap                    350 hp         370 lbft

The TFSi K04-based BYD BWJ BHZ CDL Performance guide

• Stage 2  custom remap                                                  340 hp        340 lbft
• Stage 2+ custom remap                                                 380 hp        400 lbft
• Stage 3 k04 0r k03 hybrid custom remap                     550 hp        550 lbft

(all Performance figures are based on levels achieved by R-Tech Performance)

If you require more power from your S3 we recommend the 76mm (up to 400 bhp) or 90mm (400 bhp+) downpipe to go with this system.

The images below show the comparison between the 76mm and 90mm down pipe options that we offer.

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We recommend a new turbo to the front pipe gasket when performing the install although this is not essential.

We also recommend that the Powerflex up-rated dog-bone mount is selected when purchasing the full turbo-back system. This will decrease the amount of stress on your downpipe once the car's torque has been increased after re-mapping.