First it's there...Now it's not (2nd cat & res delete)

[NinjaT1985]

Took of work early and had my oil changed with Pennzoil Platinum 0w-20, and had them cut out my secondary cat & resonator...

Pics...

before

after

I also have the "ebay" axle back muffler section.

http://www.ebay.com/itm/Mazda2-Mazda-2-11-12-Resonator-Silencer-Rear-Exhaust-Axle-back-Exhaust-Systems-/370599125832?pt=Motors_Car_Truck_Parts_Accessories&hash=item56496de348&vxp=mtr

Its definitely got more rumble, its a little raspy past 4k rpms so that going to take a little bit getting used to. But I'm happy... Butt dyno says its got more low end lol

 

[Font Motorsports]

Nice. What was the dyno's output?

 

[PGTBrow]

I would think the less back pressure would be less low end and more high end? Thats if i'm not having a blonde moment and speaking out of the ole brown eye.

 

[kwaits92]

Haha where'd you get it done?
Every time I tried to get mine cut out the local shops throw huge fits about it.

 

[colonelangus]

I would think the less back pressure would be less low end and more high end? Thats if i'm not having a blonde moment and speaking out of the ole brown eye.

less backpresure = quicker throttle response more low end grunt ,but usually loses in top end..generally speaking ofcoarse

 

[NinjaT1985]

Nice. What was the dyno's output?

Not sure lol... There is a local shop that I plan on having it done at but I want to wait till I get my intake.

I would think the less back pressure would be less low end and more high end? Thats if i'm not having a blonde moment and speaking out of the ole brown eye.

I was reading a lot of posts earlier today and apparently the exhaust side of this engine in the most restrictive part. So that is where I figured I'd start "modding". I plan on getting Andres header but it $$ so its going to have to wait a little while haha

Haha where'd you get it done?
Every time I tried to get mine cut out the local shops throw huge fits about it.

Yeah shops are always "if-y" about messing with cat's and such. Fortunately this shop works on all our family's cars and my Dad has known the owner for decades. So they really don't question what we want done. The place is called Stuart Rolfe Muffler but it's a full service shop.

Thanks for all the comments. Next up is a seat from Font! and either the Injen or Corksport Intake.

 

[Mazdamatic]

i would say on stock pipe. the straighter the better low and top gain. (good velocity no BP)
and i would say it would get better the higher the diameter until you go past 2''.

but i dont know anything. but i did stay at a holiday inn express.

 

[kwaits92]

You should post a sound clip.

 

[Andy Hollis]

Nice. What was the dyno's output?

He said, "Butt dyno". Sure you want to know about the output?

 

[NinjaT1985]

I'm not really building this thing for speed lol, I mean it's a Mazda 2 c'mon. If we wanted speed we'd go buy a speed3 or something along those lines. I bought ir for the fuel economy and cheaper maintenance. I plan on doing some basic bolt ons but I REALLY want this thing to handle. Next thing is a better seat, I hate the stock ones. Then intake, cs rear torsion bar, and some kind of strut tower bar

 

[Mazdamatic]

Haha where'd you get it done?
Every time I tried to get mine cut out the local shops throw huge fits about it.

my local shop didnt mind. i asked (this being after already having had them take off the resonator and throw on my ebay fart can) if i could get a high flow cat for the 2nd unmonitored one. andhe was like why not take it off. unmonitoreds are just resonators. so i was like f*ck it lets go straight all the way.

 

[Font Motorsports]

He said, "Butt dyno". Sure you want to know about the output?

I'm pretty sure i know what that would sound like.

 

[Font Motorsports]

I'm not really building this thing for speed lol, I mean it's a Mazda 2 c'mon. If we wanted speed we'd go buy a speed3 or something along those lines.

How DAAAAAARE you say that!

 

[NinjaT1985]

How DAAAAAARE you say that!

Hey, I've been there and had it lol. I was "fully bolted" with custom stage 2 tune on a COBB AP; just got tired of high test fuel and high maintenance...

 

[Font Motorsports]

Hey, I've been there and had it lol. I was "fully bolted" with custom stage 2 tune on a COBB AP; just got tired of high test fuel and high maintenance...

Serious stuff! I'd be happy with an extra 50 hp on the 2 at least.

 

[Tom_Mazda2]

Serious stuff! I'd be happy with an extra 50 hp on the 2 at least.

I'd be happy with an extra 30hp and srtip an extra 200 pounds out of the car.

 

[ROTAg]

but i dont know anything. but i did stay at a holiday inn express.

let this be a lesson to everyone on how to punctuate informative thoughts
+1 Mazdamatic

 

[Font Motorsports]

I'd be happy with an extra 30hp and srtip an extra 200 pounds out of the car.

Or that.

 

[Mazdamatic]

let this be a lesson to everyone on how to punctuate informative thoughts
+1 Mazdamatic

i always forget that that matters on the interwebs. i will say when im emailing clients my grammer somehow is spot on. cant say the same for clients.

 

[DiegoRF]

You should post a sound clip.

+1