im going on tuesday to an exhaust shop to get 2.5" exhaust piping to go along with my magnaflow muffler and was wondering i should go with straight pipe or not?

 

Don't do 2.5" it is unneccessary for you!

Run 2.25" it is a better mix for you, unless you have descent mods! And unless you are going into the "FART" wars with local hondas do not go straight pipe keep the resonator, and muffler!

 

it'll be pretty loud if you delete the cat, but save some money over putting in a high-flow one...i say if you wanna take the cat out, do it

 

im not taking out the cat im just getting new pipe from where the downpipe connects to the tailpipe back

does anyone know what the size pipe i have now as stock compared to what i want to put in?

 

When I had my 05 LS, it was like 2" and dipped into like 1.75" over the rear axle or something to that effect. I put 2.25" on my 05 with an HKS (fart cannon style) and it had a noticable increase in performance!

 

i believe the stock piping is a 1 7/8" and yea, do a 2.25 and i would highly recomend against a straight exaust, i have a manifold back exaust, CA downpipe with cat, and a 2.25 inch DC sport exaust and my car is LOUD

 

the reason why i would go with 2.5" was because most of the cat-back exhaust kits are 2.5" so i figured i would go with that

 

THe catbacks for the 2.2 liter are usually 2.25"

Get the GMPP Catback it's 2.25" piping! Most of the 2.5" catbacks are actually for the 2.4 and SS/SC!

Seriously though, just do 2.25" it's plenty big unless you are planning on going with some bewst!

 

would it hurt it at all by going with 2.5 instead of 2.25?

 

You'll just loose ALOT of lower end power! Running 2.25" will be a better balance of low end power and high end increases!

If you want to run 2.5" go ahead you seem to really want to (but there is no reason to!)... It's just overkill for a stock 2.2l!

if you check my mod list in my sig... and I'm ONLY running 2.5" piping! You don't need it!

 

you will lose some low-end torque with 2.5" thats all it will hurt
technically you would gain that power later in the rpm range, but your car will never rev high enough to see those gains.

 

ok seems fair enough so i'll just have to go with 2.25 cause i dont wanna lose any low end torque

 

Atta' boy! Get yourself an intake too, and it'll sound even better!

 

post videos when it's done.

 

ok i'll take a video and i already have a k&n intake so im all set up there

 

Good deal! Enjoy

 

well i got the new piping today and went with 2.25" and doesnt really sound much louder at idle but is definetly deeper and louder when u get on it and i tried a 0-60 on my dash hawk and now it was about .4-.5 seconds faster so definetly worth it

 

Good choice on keeping a muffler and smaller piping on an N/A 2.2. A low compression 4-cylinder such as the 2.2 needs that pressure and smaller diameter piping to keep the flow and velocity going well in the exhaust system. Big pipes and no mufflers on these Hondas you see driving around with just bolt-ons are actually hurting themselves with that modification.

 

about how much did it cost to get the custom piping? was it alot cheaper to go with that then some of the exhaust like dc sports or magnaflow?

 

well i already had the magnaflow muffler which only cost me $120 and for the tubing that only cost me $65 so i made out great as far as price compared to just buying one premade

 

Thats awesome do you still get a good hp/tq increase? btw i like the muffler in your pic

 

i havent tested it yet on the track but it feels like it made a hp increase and it doesnt seem to be slower of the start. and thanks i love my muffler but i wish it would be a lil louder

 

did the shop doing your exhaust use a mandrel bender? Or does it look kinda kinked in at the bends.

 

i agree i have hondas with straight pipe trying to race me all the time they drive by and rev there car (loud as hell) and i have kept my cat and resonator and muffler and my car is quite and faster... when i took my cat out my car was way to loud and was .2 .3 of a second slower in the quarter mile you made the right choice!