i have a 67 camaro with a 383 11:1 comp a big lunati cam dart heads 300 stall and 4:56 gears right now it is straight header with hooker super comps and i need a good mufler for racing only i do not care how loud but i do not want to keep it straight header any replies would help thanks

 

magnaflow or slp weld ins wouldnt be bad. the slps will flow the best because they are pretty much just a hollow tube.

 

If sound level is not a issue i would go with the SLP's.

 

Magna flow, is my fav. but thats just because its Mario Andredi's favorite.

 

Dynomax or SLP

 

Flowmaster 40, I love the sound of them.

 

i love flowmasters too i have 2 super 40's on mine and it sounds good not to loud to pissoff my neighbors lol

 

Magnaflow and its stainless steel.