i see on racing beat that they only have a cat converter replacement pipe for the automatic. can these also be used for standards like a bolt on or is there customization involved?

http://racingbeat.com/FRmazda1.htm

This is the link to the item

 

for future reference, you cannot just hotlink like that. also, they have others as well. I bought the se's one. it really does help give extra power, but i think you would be better off buying a used complete exhaust.

 

they used to have em all... matter of fact i've got one here for an 81-83 MT i was going to chuck on ebay. its new with the hardware and instructions. pm me if you want it

 

i searched and found this. how much different is the 84-85 mid pipe then another 1st gens mid pipe. i would like somthing like this for my car. dose anyone have a video of it installed? how much louder is then stock?

 

I added the cat replacement pipe along with a prima flow muff that I took from the junkyard to my otherwise stock (except k&n drop in filter) gslse. It was a Dramatic increase in power. Dramatic to me at the time anyways compared to the HKS cat back on my corolla gts. It wasn't one of those mods where you are left wondering if it feels faster or not. hehe