Originally Posted by Snertz
Those are Riss Racing downpipes, GLWS!
So according to the information I could gather, they are 3" tapered to about 2.75". I am unclear if they are V1 or V2, but I do know FFTEC did not have issues installing these in my car. I had them on for about 3 months without issues.
2007 E92 6MT SGM: MusicarNW Level 2, Procede Rev 2.5, FFTEC/Vishnu LPFP with Flexfuel Sensor and Flash, M3 Offset V701's, WaveTrac LSD, Michelin PSS, Downpipes, M3 Control Arms, TCKline D/A Suspension, LCI Tail lights, Lux AE's, ER Charge Pipe, DCI's, Mtech Front and Rear, M3 Sideskirts, HPF Stage 1 Clutch