exhaust question

[raf]

so im pretty low and ive scraped my exhaust so much that it has so many leaks and sounds ricy (70mm tsudo catback) i have a hf full race dp and a k&n sri and i wanted to put my stock exhaust back on what do u have think? like would i loose alot of power? would my engine struggle at all cuz the stock piping is small just state youre opinion pleaseeeeee thanks because i really dont feel like spending $600+ on pipes anymore lol

 

[squiggy]

If you are concerned about power, raise your car a bit. Otherwise, you will lose about 10-15hp going back to stock exhaust. A retune will take care of any issues.

 

[raf]

i dont have a tune you think ill loose that much?

 

[squiggy]

HP claims tend to be stated based on a strict bolt-on without a tune, so yes. Also, if you have a DP, you really should have a tune. You are doing your engine (and money invested) a disservice otherwise.

 

[Dar-Dar]

Yes. Dropping from a 70mm to a 60mm is a pretty significant percentage decrease in cross sectional area.

70mm: 3846.5mm^2

60mm: 2826mm^2

That's a X-sectional area decrease of 26% (1020.5mm^2/3846.5mm^2).

Also, I'm not sure if the stock exhaust can be bolted to a 3" DP.

 

[squiggy]

Also, I'm not sure if the stock exhaust can be bolted to a 3" DP.

Flanges should be the same.

 

[323]

If you scraped holes in the tsudo, you'll eventually scrape holes in the stock exhaust if you put it back on and you'll just continue that cycle with new exhausts... So I would take squiggy's advice and just raise the car a little

 

[raf]

ok thanks alot guys! knew i could get some help here lol

 

[Dennis Rockholt]

Definitely get a tune if you have a DP.....huge difference from what I am told. I am getting both ordered for mine in roughly a week or so

 

[raf]

got about 3 tickets on my name:/ soon as i take care of those fp on its way ) and good luck hope it works out for u

Definitely get a tune if you have a DP.....huge difference from what I am told. I am getting both ordered for mine in roughly a week or so