Which Optima battery should i get for my TSX? I read awhile back that there was one type of Optima battery for the TSX that was crap.

 

Since your new, best thing to do prior to starting a thread is to do a search. More than likely you'll find your answer.

Answer to your question:
https://acurazine.com/forums/showthr...ghlight=optima
https://acurazine.com/forums/showthr...ghlight=optima

Red top 75/35 , 35 , 75/25 works.

 

Any one ever used the D51R (9073-167) YT. i went to the Optima website and this is what they reccomended for the TSX.

 

51R is the official size for our car, but due to Optima discontinuing the yellow top 51r for awhile due to bad construction, most of us opted to go with the 75/35 , 35, 75/25 instead. It's a larger battery with a higher cold cranking amp than the 51r.

Using the 75/35, 35, or 75/25 doesnt realy need much modification. I've tested the 75/25 myself and currently using a 35 model. With stock intake, you'll have to remove the plastic tray that the original battery sits on. Don't worry, the metal tray that the plastic tray sits on is a perfect fit for these three model and still can use the stock battery tie down.

Red top is geared towards performance while the Yellow top is geared for audio setup.

 

As far as cranking the motor up is it better compared to the stock battery?

 

the motor does turn over much easier but starts a little faster vs a stock battery.

Reason being is that fuel and ignition isn't affected by the better battery. those two doesnt come faster or anything.