catback vs axel

[Eyedea23]

I just ordered a 2.5'' SU Test pipe for my MS6, now for the money, i found a 2.5'' catback magnaflow exhaust for $415. however, would it be better to just get an axel back exhaust for now? and finish the mid part later when i have more on the car? because right now i only have a CAI on it.

[chiefmg]

Personally, I'd get the catback. That is a good price. If you piecemeal the exhaust with different sizes up and down, you will create turbulence in your exhaust gases which could affect driveability.

[coyfish]

It doesn't really matter. The stock mazdaspeed 6 catback is not that restrictive. Adding a catback exhaust will give you no to VERY minimal gains. You are essentially paying for a muffler set for a beefier sound.


Depends on your goals. If you want cosmetic (sound) mod than grab your exhaust mod but if you want power / handling there are plenty of other options.

[Eyedea23]

thx guys. i agree with the whole minimal power gains, but i actually just came across some extra money i didnt think i had, so im prolly gunna purchase the exhaust. any ideas on wat 2 do next?

[coyfish]

BPV, boost gauge, short shifter / bushings, engine mount. I would grab those if I were in your shoes. Easy, cheap, and removable.

[Eyedea23]

thx for the help coy =]
uve helped me a couple times before, i really appreciate ur advice :D

[Eyedea23]

actually, should i get a bpv or a bov?

[chiefmg]

For our cars you want a BPV. The ECU doesn't like any venting of excess boost to atmosphere. Forge makes a nice BPV, some people don't like the ping sound it makes but I think it is neat.

[tunersteve]

thx guys. i agree with the whole minimal power gains, but i actually just came across some extra money i didnt think i had, so im prolly gunna purchase the exhaust. any ideas on wat 2 do next?

http://www.mazdas247.com/forum/showthread.php?t=123733209

All the answers you need for your next mod options.