I am looking to install exhaust cutouts on my 2 1/2" Flowmaster exhaust system so I can uncork them at the track and run open headers. I have headers. Does anyone have any experience with using these? What brand? Where did you install them, right after the headers or before the mufflers? Thanks Tim
Summit sells several versions of them in their catalog. I was wondering by someones experience which ones work better. Tim
I've had several sets of these cable type that are forever seizing up and a PITA to get wide open. I finally went down to my local muffler shop (Shaffers Muffler) and had the owner cut out 2 1/2" holes in the exhaust behind the collectors and weld in the same size galvinzed pipe with screw on caps. Then I just carried a pipe wrench in the trunk and kept a little anti-seize on the threads and bada bing open exhaust. The sound is awsome too. They welded them on directing the openings sort of down and to the sides of the car.
Cutouts I bought a set from Summit, and mounted them directly behind my headers, flange to flange with a gasket. The cutout caps have welded studs and wingnuts. Slop the Never Seize on the studs. I took a piece of 1" heavy wall pipe X 8" Long and notched the end to fit over the wing nuts, and made a T handle at the other end. I carry a beach towel, throw it down, use my T wrench, and have both sides open in no time. Can send pics if needed. Michael Dyer
C.J.- I'll look thru my old car pics (this could take some time) and see if I've got some shots of that cut-out I used to use. The last ride I had it on was a 70 Ford with 390 and nitrous. Serious sleeper. But any muffler guy worth his weight should be able to do it fairly cheap. The beach towel or small area rug works great to keep in the trunk as Mike noted.
There was a set of cut outs on my car when I bought it. They installed them directly after the headers. They were an "Y" shaped that was closed by a flat piece of metal that was held in place by three wing nuts. It had a special wrench that was slotted to turn the wing nuts. When you removed the plates , the exhaust would exit under your feet directed to the side of the car. Made the 455 sound real good though. :grin: I thought it was a pain taking the plates on and off so much that I took them off an installed a 3" full exhaust. :TU: Not knowing what size your motor is and its set up, the only thing you might gain is loud exhaust noise.
Thanks for your trouble. It sounds like it'd work great, but I just can't wrap my mind around exactly how it's done. It's been a looooooooooong week! C.J.
Stacey put a set of slick electric operating ones on that show "TRUCKS" on the Copperhead truck. Just flick a switch and they opened up.
There's an in-house vendor with the Turbo Regal community that sells a nice electric kit. A local friend bought one and it's nice. The spool comes alive with this and you can adjust the amount of opening and sound with an in car controller. I can't remember his name right now.... maybe someone who also has a GN/ TR and frequents those communities can jump in??? You would have to double the cost if putting one on a NA Buick with duals though as you'd need two. My philosophy is always to purchase from vendors that cater to our cars rather than go outside of those circles whenever possible. Lets support our vendors first!!
dumps I am with Eddie; Go simple . 2 in galvenized pipe with lots of anti seize welded in ahead of the mufflers works. The only thing I would add is to weld a large nut to the tops of the caps, then drill a hole thru the nuts and pin or safety wire to keep them from unscrewing. I lost one Down town Houston texas one night. It is hard to explain to the police. Eaven harder to convince them that you didnt do it deliberitly. :Brow:
