Actually, I run 19lb. injectors from an e34 535i and the afm from an e34 535i. Provided I have a bunch of other performance mods that compliment these, they both work great. You will probably need a rrfpr, and will have to tune the larger afm, but the hp and torque increase with the car tuned @ 4-4.5 bar is approximately 7 to 10 hp and ft lbs. of torque. Was an excellent upgrade that ran me about a total of $375 US dollars.
"Lightened flywheel and centerforce clutch assembly on the way"
Pro-M Maf to come."