Forum > Mustang Discussions

66 Coupe 289 Headers?

<< < (2/2)

if its original and you wanna keep the stock look, id jsut order up a set of hipo manifold and the hipo h pipe and have it installed the gain will nto be as great as headers but you will gain a little flow and still look stock to 99% of on lookers


--- Quote from: 66GTKFB on September 09, 2008, 10:37:41 AM ---A Mufler shop will install 'their' pipes and muflers by welding them to your frame. It will be messy. A reasonable stock replacement exhaust system can be obtained from most Mustang mail order stores for under $300. It can be installed in your garage in a day. There are a couple of problem areas you should be aware of: the flexible brake hose to the rear axle may have an interferrence fit with the left hand pipe; you need to drill four 3/8 inch holes in the body behind the rear seat to install the mufler hanger brackets; the rear exaust pipe hanger holes do not exist on your car and cannot be added but you can use the shipping tie down plate holes as a substitute; a special rear left hand shackle is needed to facillate spring removal.

--- End quote ---


I have the muffler hanger brackets from the previous owner. He was going to put a new exhaust on her before I bought her up, so had started getting the parts together, but never finished. The reason I'm now putting an exhaust on her is because he had cut the tail pipes off right before the muffler. It sounds strong and sexy, but I would like better performance along with that sexy rumble. If I drilled those 4 holes in the rear floor panel would they most likely pop through the carpet? Or would I need to be super careful? If the rear exhaust pipe hanger holes do not exist, then how did they stay up before they were cut off???

Well thank you again everyone for you input, its just making me think more, and more about what I want, or what I really don't want!  :o Opening my eyes to a whole new world. I think that when I first bought the car, my main goal was to keep it stock. Keep it true. I wouldn't have changed anything on my baby, except that its altered before I got her. So here I am trying to keep true..... Thanks for your help gentleman.


Remove the rear seat. On the 'hump' for the rear axle there are two pads stamped into the metal where the brackets and holes go. The two studs on each bracket exits to the underside. The pads are about 10 or so inches either side of center. Two 8-18X3/8 sheet metal screws keep the bracket in place. Go to and enter EH661 in the search section for a picture. Be advised that this is a poor reproduction of the correct part.

Yeah, Jim and Steve are fart smellers. fellers.  ;D I simply took mine to a Midas Muffler shop and had them weld mine in.  She sounds great, and I didn't even have to get dirt under my fingernails.   ;D  I am not a devotee of clamped on muffler systems.  I hit a deer one time, and that sumbitch ripped out my whole muffler system because it was clamped together.  You also don't get any leaks with the welded method.  Trust me on this.  Take your muffler and exhaust system to a qualified muffler system welder if you can't do it yourself. 


[0] Message Index

[*] Previous page

Go to full version