anyone ever tried a spec miata catback for there autocross car, Im considering it for it being cheap, lightweight, and puting out good power. Just wanting to here opinions..
I'm running one in my 91. First in E Stock Solo2, now in STS2.
Here's a pic.
My original thoughts after installation were:
"It's pretty light and really well made by Bosal. I hope it adds some horsepower and that it's not too loud.
Update: Spec Miata System is 5 pounds lighter than OEM. It is 2 times louder, but has a nice low burble at idle and an aggressive ripping sound during hard acceleration. Bad part is a droning at partial throttle between 3000 and 4000 RPM."
The sound level differences between stock and the Spec Miata are very noticable. When I first put it in I thought it was too loud and would switch back and forth between AutoXs. It does improve top end a little and being lighter is a plus.
It does set off car alarms as I drive by so that's an indication of the sound levels. My 17 year old son loves the sound and noise level. After two plus years continously in the car I've grown to love it too. The droning at highway speeds (3000-4000 rpm) could irritate some folks.