Recently, I removed my 50mm intake so that I could pass smog. There was a noticeable loss of power up top. I had forgotten how much the 50mm manifold did until I removed it. Keep in mind that my car's far from stock.
Alex Ranarivelo South California '91 GTI 16V w/European Motorworks ported 1.8 16V head, euro intake cam, Garrett chip, 50mm intake, Borla exhaust, passat cat, 3.90 ring and pinion, .80 5th gear, no A/C, neuspeed lowering springs, and rear tri-tie bar. 140hp@the wheels. <A HREF="http://www.iders.com/alexweb/";>Alex's Tuning Information</A>
