What a liar!?!!

[mspeedpro]

Last summer I went to my local exhaust shop. I told my trusted friend that works there- "I want to replace the single largest bottleneck in my exhaust system." He, of course, recommended I replace the muffler. I did and was very displeased with the hp I gained from only the muffler being replaced, maybe 5 whp. I mentioned to him that there was a downpipe that would replace quite a bit of the exhaust and both cats and he said it was a waste of time. However, I just installed my 3" catless dp and I could swear I get as much hp out of the dp as I did the muffler!?!?!!! Oh well, AWESOME mod!!

[jersey_emt]

Yeah, the stock muffler actually isn't that restrictive. A lot of people replace everything BUT the stock muffler.

Gains from a muffler alone = maybe 2WHP

Biggest gains will be made from a catless midpipe.

Gains from a catless midpipe = 10-15WHP

[NeverSober]

The muffler wont get you shit on an otehrwise stock exhaust. The downpipe was a good move, and will diffently net you more gains then a muffler will. Lol no offense but your friend is stupid. Where did you get your 3 in downpipe from?


Chris

[mspeedpro]

azian6er, its an apexr1.com model

[Dr.Sound]

now get rid of the resonator section.
your 3" downpipe is only producing like half of what it can since the resonator section is 2".
i felt a nice increase after i got rid of mine.

[thunder]

Wow! I didn't think that section was so small! Have you actually measured it?


now get rid of the resonator section.
your 3" downpipe is only producing like half of what it can since the resonator section is 2".
i felt a nice increase after i got rid of mine.

[Dr.Sound]

it's smaller than my 2.5" midpipe.
i'll measure it when i get home.

[mp5jeff]

aftermarket muffler on a stock exhaust car will = more noise thats about it...

[azian6er]

shit man finally got it on lol??

makes good power doesnt it man? I knew you would be pleased.

-bryan

[mazdaowner123]

What exhaust are you running now bryan?

~brian

[Dr.Sound]

custom, right?

[mspeedpro]

Yea i got it on and it OWNS. I dont think anyone in this thread realized the story was a joke -=P The muffler was a "rice" mod of mine, haha so shoot me....

I def wanna do sum aftermarket piping from dp to muffler when i can. Maybe ill see how much sum plain ol piping would cost fabbed.

[Dr.Sound]

i got 2.5 inch mandrel bent piping and flange done for $120.

[mspeedpro]

Sounds like just what I'd be looking for

[SpicyMchaggis]

Thats the same concept I use. Header-back with no restrictions but into the 03.5 MSP muffler..Smaller piping or not, it keeps it quiet..thats about it.