another question
 

I found local shop that can get me a good deal on a muffler they pointed out to me, they say it is a good brand, and it has a deep throaty sound (since they recently installed the same muffler on an accord similar to my year) ok well my question is what's your opinion (if any) on this brand
HP Racing

I would get some other brands like HKS and Thermal. they don't mess around but other cheap brands like APC **** up badly.