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#11 | |
![]() Join Date: Apr 2007
Location: Lake Bluff, IL
Posts: 2,067
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2016 Long Beach Red Z06 #10281 "POPS Z" 1995 Polo Green #409 "WARP TEN"--Haibeck 350/510 package, 4.10s, Hurst, Stock Exhaust with QTP Cutouts --Sold but still running strong 1993 Quasar Blue #161 "HIL KING" --Sold but still running strong, now with more than 120,000 miles 1967 Marlboro Maroon/Saddle Corvette Coupe 300 hp/4-spd --Sold a long time ago ZR-1 Net Registry Founding Member #95 NCM Lifetime Member Favorite Quote--Attributed to Mickey Thompson: "Too Much Horsepower is Almost Enough" |
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#12 |
![]() ![]() ![]() Join Date: May 2007
Location: Peoria, AZ
Posts: 9,154
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Both Phil and I are running RTs. Its the right thing to do. 2nd choice is magnaflows
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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 |
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#13 |
![]() Join Date: Feb 2014
Location: AZ
Posts: 860
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I went with no cats when I installed my headers. After a 5-minute ride, I'd return to the house with my clothes stinking of exhaust, and this was after Boudreau had datalogged my car and worked with Marc the get the calibration correct.
It's not worth 5HP. If you go without cats, you'll most likely be sorry. Good luck. |
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#14 | |
![]() Join Date: Aug 2014
Location: Kansas City, MO
Posts: 838
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Looking for a ZR-1 1985 Yamaha RZ350-NOT STOCK 1971 Yamaha AT1-Middle of a restoration |
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#15 |
![]() Join Date: Dec 2005
Location: Tinton Falls, NJ
Posts: 1,177
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I have had no cats for 5 years now with no issues, smell or other
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#16 |
![]() Join Date: Mar 2004
Location: Found Member
Posts: 4,346
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The 441 is cat-less. After 4 set's of various cats , we decided to X them. The 441 inch engine just blows them out. Some cats did last a little longer than others.
Recent tuning minimizes the "gag" to the point where it is just about non existent.
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Frank Urbo. NCM Lifetime member # 982 Registry Founding # 237 |
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#17 |
![]() Join Date: Aug 2014
Location: Kansas City, MO
Posts: 838
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The most mods I will do are longtubes, ported plenum and injector housings, and tune. Other than that my car will stay mostly stock since I have a limited fun car budget. haha. Too many toys not enough budget for them all.
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Looking for a ZR-1 1985 Yamaha RZ350-NOT STOCK 1971 Yamaha AT1-Middle of a restoration |
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