[Guydj1]

Bit of a dilemma whether a 2 pipe bore exhaust is better than the single pipe option on the M2? The M2 manifold design dictates a true single pipe configuration system with it being 2 into 1 unlike the M3/4 which is a true 2 pipe system. I’m considering changing the exhaust system but considering retaining the single pipe configuration. Does anyone have an aftermarket single bore cat back exhaust rather than the twin configuration like the Remus

[David@ActiveAutowerke]

Our system uses a true single design, utilizing 3.5" mandrel bent stainless tubing from the turbo back. The stock downpipe and all of the aftermarket options shrink down to just under 3" before connecting to the exhaust system. Our system maintains the 3.5" diameter from the turbo back to the tips.

The benefit of a single design is to promote exhaust velocity. We've found that it makes more power and helps turbo spool compared to the dual pipe systems. Even our M3/M4 system is a single 3.5" design and it's proven to be the most effective system on the market.

https://store.activeautowerke.com/pr...exhaust-system

[Guydj1]

Originally Posted by David@ActiveAutowerke

Our system uses a true single design, utilizing 3.5" mandrel bent stainless tubing from the turbo back. The stock downpipe and all of the aftermarket options shrink down to just under 3" before connecting to the exhaust system. Our system maintains the 3.5" diameter from the turbo back to the tips.

The benefit of a single design is to promote exhaust velocity. We've found that it makes more power and helps turbo spool compared to the dual pipe systems. Even our M3/M4 system is a single 3.5" design and it's proven to be the most effective system on the market.

https://store.activeautowerke.com/pr...exhaust-system

I was thinking along those lines it’s better to stick with single pipe design given I’m considering having a system built. I just wanted to be certain I improved on what I had performance wise as well as deeper sounding system