BMWM3M4F80F82S55Downpipeswith200CellHi-FlowSportsCats&HeatShield14-

MTC Motorsport BMW M3 M4 F80 F82 Stainless Steel Decat Downpipes With Hi-Flow 200 Cell Sports Cat and Heat ShieldThe M3 downpipes are machined from T-304 high-grade stainless steel and are tig welded in house.Our downpipes come straight from the turbo providing a sharper throttle response due to a faster spool of the turbo.They will provide noticeable power gains and a much more aggressive exhaust note which sounds amazing.They produce lower temperatures and less exhaust backpressure due to the relief of the turbocharger. The cylinder charge is increased which gives you maximum performance.Finished in brushed stainlessThese will fit the following models:BMW M3 F80 2014-BMW M4 F82 2014-We have tested this product and found increases of around 25-30bhp without tuning and 140bhp+ on a tuned car.Professional installation is recommended as some exhausts sit slightly different from others and can be tight.OPF may need to be coded out, worth speaking to a tuner before hand to check this with your car.Note: we cannot guarantee that these will pass an MOT test.