If you are looking for pure performance without emission control requirements, then choosing our 3'' Modular exhaust system - Decat is the right choice.
This decat component is a part of a fully modular GMS 3'' exhaust system and can be combined with all the other GMS exhaust parts you need.
Dyno proven, 9hp - 11hp power increase over stock exhaust system on stock 4C
Dyno proven, 16hp - 23hp power increase over stock exhaust system on ECU tuned 4C
Next step is GMS 3" Midpipe.
ALFA ROMEO - 4C - 3'' Decat
- Lightweight 640g vs. stock cat (4.200g cat + 620g bracket)
- 9hp - 11hp power increase over stock exhaust system on stock 4C
- 16hp - 23hp power increase over stock exhaust system on ECU tuned 4C
- Plug and play
- Decat system (race use only)
- 3'' / 76mm diameter
- Simple, minimalistic and effective high flow design
- Back purged TIG welded
- Quick release V-band clamps for easy installation
- T304 Stainless steel
- Less engine heat
- Less backpressure
- Less turbo lag
- Better throttle response
- Faster gear shifts
- Laser engraved GMS logo
- Requires GMS 3" Downpipe