Exhaust
#1
Exhaust
Just a quick question. I finally need an exhaust on my 75 Delta Convertible and was thinking of putting on a dual exhaust system. It didn't come with the dual hump crossmember and i'm pretty sure I can locate one if needed. So my question is do i have the exhaust custom done or locate the correct crossmember. Just curious on the plus and minus of either. Thank You and have a safe Memorial Day .
#2
Did one of these 75 delta's ever come with dual exhaust ? I don't believe they did, so finding a cross-member with cut outs for duals may not be possible, unless a cross-member from another car with duals would work... so you probably will need to take this to a shop that can custom bend a system for you..Also finding a dual system if the car never came with it may be a real problem as well. Time for a custom exhaust shop. I am sure it is possible to do..Also this car has a big old converter under the pass side floor board if i remember correctly. Getting around that maybe a real problem as well. UNLESS YOU ARE THINKING OF,,,, NO YOU WOULD NOT DO THAT ????? LOL.....
Last edited by zl1 camaro; May 23rd, 2024 at 08:08 AM.
#3
I'm not sure what you mean by a "custom exhaust", as you will need the 71-74 double hump crossmember no matter what. All 1975 GM cars came with a single exhaust and catalytic converter, and in most cases the trans crossmember only accommodated the one pipe.
#4
Get the double hump crossmember and find you a good muffler shop. Nobody is going to care about the catalytic converter so have it removed. You might want to make your muffler selection and take them with you. There is a vast selection of muffler depending on the sound you want. Many of use Dynomax Super Turbos wihich give a nice mellow sound. This will be one of the best improvements you can make to your car. Your butt dyno will make you think you have added 50HP.
#5
get the double hump crossmember and find you a good muffler shop. Nobody is going to care about the catalytic converter so have it removed. You might want to make your muffler selection and take them with you. There is a vast selection of muffler depending on the sound you want. Many of use dynomax super turbos wihich give a nice mellow sound. This will be one of the best improvements you can make to your car. Your butt dyno will make you think you have added 50hp.
Last edited by zl1 camaro; May 23rd, 2024 at 10:02 AM.
#10
5000 LBS and a big ole THM400 taxing that poor 350. The extra HP and Torque will be a win win.
Harp if cats are optional, but you are leaning with them anyway i would recommend hi flow, also. Work well and do not hurt performance as best i can see with my 69.
These below are great and the price is a gift !
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