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10-25-2013
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#21 | |
 
Join Date: Jul 2007
Location: Bartlett, IL
Posts: 7,162
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Re: NPP exhaust valves on my SW 3" pipe set
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Either way works... GC, I see no reason to add these to Corsa unless you are swapping out the Corsa mufflers (I am probably one of the only FBI guys running Corsa's) and one of the last who has not ported anything either
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1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Shelby Series 1 - Wilwood Brakes Custom Interior NCM Lifetime Member #978 |
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10-25-2013
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#22 |
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Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,686
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Re: NPP exhaust valves on my SW 3" pipe set
Yes, remember the valve effectively eliminates the need for a resonator. I'm running just an SW Xpipe(unbaffled) with the muff and valves. Reduces weight, cost and restriction.
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10-25-2013
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#23 |
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Banned
BANNED
Join Date: Oct 2006
Location: MD
Posts: 3,674
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Re: NPP exhaust valves on my SW 3" pipe set
Question
Could you add the npp and the mild to wild switch? With mild to wild you can press a button to open and close the exhaust Possible? Thanks David |
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10-25-2013
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#24 | |
 
Join Date: May 2007
Location: Peoria, AZ
Posts: 9,119
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Re: NPP exhaust valves on my SW 3" pipe set
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Ok Im still running em but have ported everything.
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GOLDCYLON - 91 ZR-1 #2014 GOLDCYLON - 90 ZR-1 #2794, 4L60e (Formerly Schrade's) GOLDCYLON - 11 CTS-V Arizona State Director  91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat 90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat 11 RED/GREY CTS-V Last edited by GOLDCYLON; 10-25-2013 at 12:49 PM. |
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10-25-2013
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#25 | |
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Join Date: Jul 2007
Location: Bartlett, IL
Posts: 7,162
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Re: NPP exhaust valves on my SW 3" pipe set
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if you had a pair with dual outputs then the flapper would come into play
__________________
1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Shelby Series 1 - Wilwood Brakes Custom Interior NCM Lifetime Member #978 |
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10-25-2013
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#26 | |
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Join Date: Jul 2007
Location: Bartlett, IL
Posts: 7,162
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Re: NPP exhaust valves on my SW 3" pipe set
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__________________
1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Shelby Series 1 - Wilwood Brakes Custom Interior NCM Lifetime Member #978 |
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10-25-2013
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#27 |
 
Join Date: Feb 2012
Location: Ledyard,CT
Posts: 8,335
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Re: NPP exhaust valves on my SW 3" pipe set
Have you ever heard Callaway Megaphones!!!
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10-25-2013
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#28 | |
 Join Date: Feb 2011
Location: San Marcos CA
Posts: 1,786
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Re: NPP exhaust valves on my SW 3" pipe set
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I remember when I traded a B&B for the Corsa- much more driveable, but still pretty loud from outside the car. Then I went stock for awhile (sans resonator), but missed the extra power and went with the group buy on the SW stuff (but back to obnoxiously loud). This way with the valves is basically having my cake and eating it too. |
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10-25-2013
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#29 | |
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Join Date: May 2007
Location: Peoria, AZ
Posts: 9,119
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Re: NPP exhaust valves on my SW 3" pipe set
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I remember somebody cutting one of these open the other side is a backpressure plug but it certainly does not flow like the straight through
__________________
GOLDCYLON - 91 ZR-1 #2014 GOLDCYLON - 90 ZR-1 #2794, 4L60e (Formerly Schrade's) GOLDCYLON - 11 CTS-V Arizona State Director 91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat 90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat 11 RED/GREY CTS-V |
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10-25-2013
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#30 | |
Join Date: Jan 2010
Location: Mystic CT
Posts: 2,631
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Re: NPP exhaust valves on my SW 3" pipe set
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Linear Mode
