harder too find exhaust system components

[mike]

http://www.spiralturbobaffles.com/

http://www.fullsizechevy.com/review/sho ... all/page/1

http://www.burnsstainless.com/MergeColl ... ctors.html

http://www.spiderautomotive.com/benttubing.html

http://www.stainless-specialties.com/products2a.htm

http://www.jegs.com/p/Vibrant-Perfo...nless-Steel-Merge-Collectors/3170441/10002/-1

http://www.jegs.com/i/Dougs-Headers/776 ... Id=1282659

http://www.vetteweb.com/tech/vemp_0908_ ... index.html

http://www.mandrel-bends.com/catalog/ma ... -gauge-74/

http://www.summitracing.com/search/?key ... ones&dds=1

http://www.mandrelbendingsolutions.com/ ... 3&total=31

http://www.stainlessworks.net/cart/pressrelease.php

http://www.speedwaymotors.com/m/47_Race ... ctors.html

http://store.racing-solutions.org/1ststhebukit1.html

http://atbending.thomasnet.com/viewitem ... &forward=1

http://www.coneeng.com/exhaust_system_kits.html

http://www.jcwhitney.com/HOOKER-SUPER-C ... _10101.jcw

 

[grumpyvette]

exhaust cut outs

http://marylandspeed.com/dmh-low-profil ... -1313.html

http://www.jegs.com/p/Vibrant-Perfo...nless-Steel-Merge-Collectors/3170441/10002/-1

http://www.thunderracing.com/catalog/?a ... 1&pcid=101

http://www.quicktimeperformance.com/QTEC/index.php

http://racereadyperformance.com/welcome ... on=Welcome

http://www.pypesexhaust.com/accessories.html#01

http://www.hedman.com/products/?id=3530

http://www.stainlessheaders.com/index.aspx

EXHAUST cut outs are designed mostly for adding optional noise levels in my opinion, especially if you've got a decent low restriction exhaust and headers on the car. what always amazes me is no one seems to bother TESTING to see if they have any significant BACK PRESSURE or restriction in their exhaust system before spending the money for those cut outs
adding an anti-reversion baffle to a 18"-24" longer collector on open headers with the internal pipe about 1/2 the collector length tends to help scavenging on some engines, no header will function to full efficiency with any significant back pressure so take the effort to accurately measure any restriction to exhaust flow AT your upper rpm range of your engines power band and be darn sure its not choking your power curve.

http://www.wallaceracing.com/intake-runner-length.php

http://www.bgsoflex.com/intakeln.html

http://www.velocity-of-sound.com/velocity_of_sound/calculator3.htm

http://www.velocity-of-sound.com/velocity_of_sound/velocity_stacks.htm

http://www.swartzracingmanifolds.com/tech/index.htm
a well thought thru design on cut outs

viewtopic.php?f=56&t=1503

yes you might be amazed at what you might find in the sub linked info

viewtopic.php?f=56&t=495

viewtopic.php?f=56&t=91

viewtopic.php?f=79&t=497

viewtopic.php?f=32&t=19

keep in mind if theres little or no restriction to exhaust flow rates theres going to be darn little if any benefit to adding exhaust cut outs that in theory reduce that back pressure that might be hurting your potential hp.
you might also consider that adding an (X) pipe to your dual exhaust reduces the effective resistance to flow without the increased noise and that a true 3" dual exhaust system with an (X) and low restriction mufflers tends to run at almost the same power levels as open headers if its designed correctly

http://store.summitracing.com/egnsearch ... 4294865462


http://www.summitracing.com/search/?keyword=exhaust cones&dds=1

you can buy or fabricate these cones that tend to break up and reduce exhaust noise, once installed in the exhaust, without producing much of a restriction since the total surface area of the mini holes is greater the the pipes cross sectional area
the tabs can be tack welded or sheet metal screw attached