BULL-X Exhausts produces downpipes to the highest standard. The downpipe for the VW Golf 8 GTI from HG Motorsport can be exchanged directly for the standard part. Perfect fitment and high-quality materials make this a top-quality product. Optimising the diameter, pipe routing and/or catalytic converter can significantly reduce the load on the turbocharger. Lower back pressure and reduced thermal load provide a noticeable increase in torque and power, quicker response and, at the same time, extended service life.
Technical details – EWG version
- fully TIG welded
- tested to ECE R103
- Ø 76 mm front pipe + OPF
- 200 cpsi HJS tuning sports catalytic converter
- 200 cpsi tuning ceramic OPF
- plug and play
- performance optimisation
- reduced thermal load on the turbocharger
- sporty sound
Technical details – race version
- fully TIG welded
- not approved, for motorsport use only
- Ø 76 mm front pipe
- choice of no catalytic converter, 100-cell or 200-cell tuning sports catalytic converter
- without OPF
- plug and play
- performance optimisation
- reduced thermal load on the turbocharger
- sporty sound
Advantages at a glance
- plug-and-play solution
- perfect fitment; simple replacement for the original component
- high-quality materials
- made in Germany
- genuine quality from in-house production
- flow-optimised and performance-enhancing
- improved service life and response
- optimum exhaust gas evacuation
- no disruptive edges at the transitions
- designed and tested using computer modelling and on a dynamometer
- no more heat build-up at the turbocharger, reducing thermal load
- quicker response and a measurable, slight increase in power
Note: On approximately 2 out of 10 vehicles, the differential pressure sensors may trigger a fault despite the ECE version. Selecting a downpipe without a catalytic converter or with a 100- or 200-cell catalytic converter may cause a post-catalytic-converter lambda sensor fault in the ECU. This does not restrict vehicle operation, as the first lambda sensor required for engine management remains fitted. The post-catalytic sensor only monitors catalytic converter efficiency. The fault can be removed by adapting the software. Most vehicles up to Euro 3 do not have a post-catalytic sensor, so fitting is possible without further adaptation or a fault message. HJS ECE and EOBD catalytic converters have a significantly higher washcoat content and very high oxygen-storage capacity, which can prevent fault messages. For this issue, the EOBD catalytic converters have been tested up to Euro 4; service life and use are assured up to Euro 6.
Road use: Only the version with the HJS ECE catalytic converter in combination with the OPF is suitable for use on public roads. All other catalytic converter versions are intended solely for motorsport use.
Suitable for: VW Golf VIII (CD1).
Manufacturer’s vehicle data
- Bull-X Downpipe VAG 2.0 TSI EA888 Gen.4 FWD/AWD (z.B. Golf 8 GTI/R)
Original product name by HG Motorsport (»z.B.« = e.g.). Please check model, year and engine of your vehicle before ordering; if in doubt, contact us and we will check for you.
Approval
Only the version marked “road legal” has a European ECE / EC approval (Bull-X Tronic controller with ECE or the HJS EC catalytic converter). Versions marked “no ECE, track use only” have no approval and are not permitted for road use. If in doubt about the version, contact us and we will check for you.
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