Hi All,
I just got the Mazdaspeed bolt on rear section and I like it too. I read somewhere that it's made by Bosal. It sounds good, just a little to loud around 3500 rpm. i think it's done a little to boost performance, but not sure. Might just 'sound' louder like everyone says...
It does fit perfectly and the instalation was easy. The hardest part was getting the old muff off the rubber hangers. i eventually used a crowbar. I also have a hidden hitch on mine and the guys that custom made it ( Master Hitch here in Houston) made sure that I could get an aftermarket exhaust on there.
I've also put an AEM short ram system on there (got a good deal that I couldn't pass up). I paid $165 from Carboy here. That undercut all the online places I could find and he had it in stock. The install took about 45 minutes and was pretty easy. they just didn't include an extra size 45 hose clamp, but I reused one of the stock ones.
I've also changed the spark plugs to Bosch platinum 4 at the same time. When I did that I noticed that I was getting some arcing from the plug wires to the ignitor leads. I bent the lead wires further away from the wires, but hope to put some Magnacore wires on there soon. I was getting up to 28 mpg around town with moderate hiway driving and I've now picked up another 1 mpg with the intake and spark plug modifications. The car also seem to have more pickup than with just the Exhaust rear section. I'll be taking a trip this weekend and hope to break 30 mpg.
In the future, I plan on trying to fab a cold air box for the AEM or making a whole new intake. I'm also going to order the Kartboy short shifter with the bushing and the knob. If anyone is wondering, they just put an option on there for the three piece package for $135.
Sorry to ramble on, but it's my first post!