which one should i buy? is it better to buy one over the other. i have a gs and my only mod is a cai. i want to increase power in the 0-65mph so what is the best way in terms of piping (size and any other factor). should i also change my cat to a high flow for more hp?
thanx for responding

New Car:
2004 350z base, Nismo CAI, pioneer avic-n1 (dvd, cd, navi)



Old Car:
1998 GS with hrc stage 2, HID 6000k conversion kit, AEM UEGO wideband, sfmu, ml, prokits, Greddy warning gauges: egt, boost gauge, and oil pressure, apexi tt, haydans tranny cooler, costum dp, groundwires, dynotune fp gauge. gst muff, turbo spoiler
Boostin since Aug 03.

nothing like driving with the windows down and the music low: i love hearing the turbo spool, swwwhhhttt!!!!

well for one.. TQ is helps more in the 0-60mph range.. HP helps more in the 45-whatever mph range.
if you can get custome piping that is manderal bent then get that.. it'll probably cost alot less and be just as good as the greddy piping.

yea, what Breezio said. Make sure it's 2 1/2" (preferably) mandrel bent piping. It may actually hurt your torque a little bit right now since you don't have many mods.. but you're hp will be much better w/ 2.5" mandrel bent piping.


Thanks, Richard (97 ESi)
http://www.ourformerselves.com/richard/main.htm


BEST TRACK TIME -- 16.46 @ 86.03mph
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CURRENT MODS:
AEM Cold Air Intake || Magnacor 8.5 Ignition Wires || NKG BKR6EVX-11 Spark Plugs || Front & Rear Strut Bars || Eibach Springs Pro-Kit || KYB AGX Adjustable Shocks/Struts || AF/X Underdrive Pulley || Pacesetter - Monza Exhaust System || OBX Racing Sports - B5 Bomb Tunable Muffler || Energy Suspension - Motor Mount Inserts || Bored Throttle Body

POINTLESS MODS:
Sylvania Cool Blue Headlights || Cobra Eyes Windshield Washer Blue LED Lights || Nokya Motorsports Sport Pedal Set

Thanks, Richard -- 97 ESi
16.46 @ 86.03mph

http://www.ourformerselves.com/
http://www.cardomain.com/id/talonipse/

AEM COLD AIR INTAKE | PACESETTER 2.5" MONZA CAT-BACK EXHAUST SYSTEM | OBX B5 MUFFLER | ENERGY SUSPENSION FRONT & REAR MOTOR MOUNTS | 18X7" ENKEI RSF2 WHEELS W/ NITTO NT 450 215/40Z TIRES | GOLDLINE LOWERING SPRINGS | KYB AGX STRUTS | INGALLS FRONT & REAR CAMBER ADJUSTERS | ALPINE CDA-9807 RECIEVER | ALPINE MRD-M300 AMP | ALPINE SWR-1041D 10" TYPE R SUB | Q-LOGIC QLH-.6510SX ENCLOSURE | STINGER HPM 8GA AMP KIT | DAYTONA BLUE PAINT JOB | IMPULL R34 FRONT BUMPER | BLITZ REAR BUMPER | BLITZ SIDE SKIRTS | ECLIPSE TURBO WING | PROJECTOR HEADLIGHTS (BLACK/BLUE) | EURO ALTEZZA TAILLIGHTS | STREET GLOW SG-201 NEO-BLUE NEON UNDER CAR KIT | SPAL AMENITY SHAVED DOOR KIT | REVERSE NITE GLOW GUAGES | OBX SHORT THROW SHIFTER | SYMBORSKIT SHIFTER KIT | AFTERMARKET BLUE SHIFTER | NOKYA FOOT PEDALS

Forget the exhaust and get an UDP if you want more power in the 0-60mph range. Its only $160 and you will definately feel it. I have a greddy evo exhaust and love it but the UDP gave waaayyy more power.