NO lag whatsoever. The Gt28r is a little laggy compared to the 530 (minimal) but did give me more hp on the dyno. Only around 15-20 rwhp if I remember correctly but that could be just a diff in temp that day or whatever. My upgrades did not change between dynos except for the turbo swap also which should be noted. I would be very curious to see the hp diff in an apples to apples comparo between the 530bb and the GT28r for I feel they are pretty close in power output imho.
 ****472 RWHP/461 TORQUE ON 110 RACE GAS @21 PSI ****438 RWHP ON 93 OCTANE PUMP GAS/STOCK MOTOR**** ****429 FT LBS/TQ******************************* Also own: 2001 Harley Davidson Custom Softail Deuce 1997 Ford Explorer XLT V8 AWD 1993 300ZX 2+2 NA 1991 Yamaha YZ250 1985 Ford Bronco 3" lift, 35" Tires Sold: 1986 Yamaha FJ1100 1987 Nissan 300zx na(Z31) 1979 280ZX 2+2 1972 MGB 1968 Pontiac Firebird 1972 Nissan 240Z, dual webber carbs, etc
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