VW Golf GTi Mk5/6 04>13 Downpipe / 125mm Sports cat to OEM Cat-Back
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Tags: golf gti, audi, turbo back system, tfsi, trim, road legal cat
VW Golf GTi Mk5/6 04>13 Downpipe / 125mm Sports cat to OEM Cat-Back
Available Options
Due to the uniqueness of our products and the way in which they are manufactured, there may at times be a production delay of up to 4 weeks from the initial purchase date.
If you would prefer to pay a deposit at this stage please contact us for details on how to arrange that as an alternative, with the balance payable on the shipping date.
The BCS Powervalve road legal 100/200 cell cat 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.
1000deg Camcoat titanium ceramic coating to top of downpipe as standard. ( Other parts can be coated for additional cost ).
The BCS Powervalve downpipe and 100/200 cell 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 dimensions employed on our unique cat will allow a gas flow equivalent to a cat delete pipe whilst remaining completely MOT and road legal.
The Data supporting the product is shown below
Original Equipment Cat
Description Limits Actual Value
Fast Idle Test
- Engine Speed 2500 - 3000 rpm
- Co < 0.20% 0.00% PASS
- HC < 200 ppm 1ppm PASS
- Lambda 0.97 - 1.03 1ppm PASS
Natural Idle Test
- Engine Speed 450 - 1500 rpm
- Co < 0.30% 0.00% PASS
Powervalve 100 Cell Cat
Fast Idle Test
- Engine Speed 2500 - 3000 rpm
- Co < 0.20% 0.00% PASS
- HC < 200 ppm 4ppm PASS
- Lambda 0.97 - 1.03 1ppm PASS
Natural Idle Test
- Engine Speed 450 - 1500 rpm
- Co < 0.30% 0.00% PASS
The primary use for the Powervalve 100/200 cell cat is a public road or track.
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 high flow cat the power potential will massively increase, firstly with an initial 22bhp kinetic, and then once mapped all the way up to 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 A3 or Golf GTi Mk5/6 we recommend the 76mm (up to 400 bhp) or 90mm (400 bhp+) downpipe to go with this system.
We recommend a new turbo to the front pipe gasket when performing the installation although this is not essential.
We also recommend that the Powerflex uprated 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 remapping.
The fitting time for this product is 2 hours