putting a bigger exhaust pipe without changging the muffler??

[boxtype_r]

na-isip ko lang kung magpapalit ako ng headers, tapos papatanngal ko ung resonator/primary muffler  tapos magpalit ako ng bigger diameter exhaust pipe pero i reretain ko ung secondary muffler, may gains hp gains ba? iingay ba kotse ko?

[the driver]

In my experience, it's useless because the secondary muffler which is normally a silencer will limit better air flow as compared to straight flow muffler.

By the way what is your car ?

[DUB 101]

Sakal parin sir.

[Accord GTR]

na-isip ko lang kung magpapalit ako ng headers, tapos papatanngal ko ung resonator/primary muffler  tapos magpalit ako ng bigger diameter exhaust pipe pero i reretain ko ung secondary muffler, may gains hp gains ba? iingay ba kotse ko?

Yes.  Yes.

[baby'zilla]

sayang pera mo. baka mas may gain pa kung keep the stock pipe and change to a free flow muffler.

[boxtype_r]

In my experience, it's useless because the secondary muffler which is normally a silencer will limit better air flow as compared to straight flow muffler.

By the way what is your car ?

mazda 3 2.0 and a chevy tahoe

[boxtype_r]

sayang pera mo. baka mas may gain pa kung keep the stock pipe and change to a free flow muffler.

did it to my old car before pero masyado akong naiingayan, gusto ko sana medyo quiet pa idle lang pero umiingay paghinahataw na.

[the driver]

mazda 3 2.0 and a chevy tahoe

Have your mazda lifted to check size of exhaust pipes from the engine down to muffler. In my civic 1.8L, I changed the 1.75" diam. to 2.0" all through out. I retained the resonator and changed the muffler to straight flow. But this straight flow has some sound deadening material inside.  The sound is acceptable even at 4000 + rpm, you can still hear ur car stereo. It has a mid bass sound.

[aid03]

if im not mistaken i think the mazda3 got a stock 2" pipe...the muffler is in the middle of the car. might as well change the muffler if your changing the pipes anyway.