DeVolk

fixin to do a dyno run on the car but wanted to see what u guys think im pushin w/this combo....i'd like RWHP/RWTQ estimates...
98Z28 M6 w/60Kmiles
SLP lid w/K&N filter
SLP 85MM MAF
SLP IAT module
SLP smooth air bellows
Shaner S2 ported T.B
40series Flowmaster muffler
MAC mid length headers w/ORY pipe
Taylor 10.4 race wires

thanks for responding guys

LS1-Maniac

340-350 hp would be my guess. Add 5-10 for torque.

DeVolk

flywheel or rear wheel?

JimMueller

I don't think the MAF, IAT module, bellows, TB or wires are going to gain you anything.

I'll guess 33x rwhp & 34x rwtq.

dis3as3d

Im guessing 330 - 340 because, the flowmaster isnt worth anything performance wise IMO, wires and the smooth bellows do nothing for performance. Also mid length headers dont put out numbers like the LTs.

2002Z28SSConv

I say a minimum 320 hp / 325 tq but not too much more because those mods aren't gonna give much increase until you really increase airflow with heads or cam. The Mac's are the best mod there. But the Flowmaster isn't very highly rated. I brought the tq # down a bit from a loss of backpressure. I figure 30 - 35 hp over a stock rating of around 290 to the wheels.
I'm sure other '98 owners will get p!ssed and say I'm wrong. Oh well, we're all just guessing anyway.

SSpdDmon

I'd guess 325~330rwhp and 340~345rwtq.

Constrictor98TA

My guess is also 330 RWHP and 340 RWTQ.

XTZ

The only mod here that's good is the lid. IMO all the others are a waste of money. Get a set of long tube headers, ditch the cats if you can, and get a cold air kit like the SSRA(Super Sucker Ram Air). Since you don't need the AIR hook up for your 98Z I'd go with the TSP lid. Next get a good cam.

SheDevlLS1

320 rwhp-340 tq