Exhaust options?

IISPEEDYII · Apr 22, 2014

So I wanna do the exhaust for my I5, what are my options? I know theres the GM performance exhaust but what else is there? I looked around but I'm not quite sure what would sound/function well so what are you guys running?

2010H3TAlpha · Apr 22, 2014

For the Alpha or I5? I haven't seen a GM Performance dual, I have the GM Performance exhaust on my truck (Alpha) and it is really just a replacement muffler and a new tip...I left the stock tip to keep it looking stock and reduce the risk of hitting it on decline. I got a great deal on the system but for the normal price it is not worth. I'll let other people comment on other options...I do like how it sounds, not too loud which is great because I'll be carrying a baby boy in the back very soon but loud enough that I get a little growl at idle and when I get on the gas pedal. Very little highway drone too.

ABNTROOP · Apr 22, 2014

If it's an alpha, chop muffler and do dual straight pipe. There's some drone at lower RPM but otherwise sounds good as the resonator does some work [video=youtube_share;i7lBEEcKiqo]http://youtu.be/i7lBEEcKiqo[/video]

IISPEEDYII · Apr 22, 2014

2010H3TAlpha said:
For the Alpha or I5? I haven't seen a GM Performance dual, I have the GM Performance exhaust on my truck (Alpha) and it is really just a replacement muffler and a new tip...I left the stock tip to keep it looking stock and reduce the risk of hitting it on decline. I got a great deal on the system but for the normal price it is not worth. I'll let other people comment on other options...I do like how it sounds, not too loud which is great because I'll be carrying a baby boy in the back very soon but loud enough that I get a little growl at idle and when I get on the gas pedal. Very little highway drone too.

I5, Sorry I should have specified

High Five H2 · Apr 22, 2014

i like gibson. the muffler sits farther inboard so there less chance of it getting bashed up.

IISPEEDYII · Apr 22, 2014

jallen9 said:
i like gibson. the muffler sits farther inboard so there less chance of it getting bashed up.

I was looking at that, do you have the stainless one?

Best4x4 · Apr 22, 2014

I'm just going to remove the rear muffler, and place a magnaflow in place of the resonator on my wifes H3 with the I5. I did that on my Alpha and it sounds great, but it also clears up a good amount of space on the LR of the H3. I plan on mounting a medium sized ammo can in that spot to store my straps and shackles in. It'll be completely out of sight and out of harms way.

Airborne · Apr 23, 2014

I highly recomend taking it to a local shop near you. They can remove the power robbing kink near the header/midpipe connection. Take out the second cat. Put on a performance muffler. Delete the resonator. Tuck the pipe up so you dont have to worry about it wheeling...Or keep anything you want to keep listed above.
If the total cost out the door is over $400 I would look at another shop. Thats a little on the high side here. I paid $220 for everything listed above when I bought the H3 3 years ago. Just another suggestion.

Muffler choice will effect the price as well. Name brand/model

IISPEEDYII · Apr 23, 2014

Airborne said:
I highly recomend taking it to a local shop near you. They can remove the power robbing kink near the header/midpipe connection. Take out the second cat. Put on a performance muffler. Delete the resonator. Tuck the pipe up so you dont have to worry about it wheeling...Or keep anything you want to keep listed above.
If the total cost out the door is over $400 I would look at another shop. Thats a little on the high side here. I paid $220 for everything listed above when I bought the H3 3 years ago. Just another suggestion.

Muffler choice will effect the price as well. Name brand/model

I think thats the option I'll go, any suggestions for a good sounding muffler? I like the dual exhaust look.

High Five H2 · Apr 23, 2014

not yet, but it's on the list.

Best4x4 · Apr 23, 2014

I'd keep the cat's intact, but that's me.

I removed the second cat on my 05 Rubicon, installed a performance muffler, and I lost the correct amount of back pressure and it had no power after 65MPH. Reinstalled the second cat and it was fine again.

My Alpha has a smaller resonator vs the I5 setup, and now that I removed it on my I5 the floor doesn't get nearly as hot. Eventually on the I5 I will run a straight pipe out the RR side of the H3 and put a magnaflow in place of where the OEM resonator would sit. Gives you a lot more room, keeps it simple, and it sounds good.

Airborne · Apr 23, 2014

IISPEEDYII said:
I think thats the option I'll go, any suggestions for a good sounding muffler? I like the dual exhaust look.

I went with the flow master 10 series. Sounds good with a deep low rumble not ricey at all. From idle to cruising speed. If you keep the first cat that is. After I threw on the header it's a little loud even for me. But if you are looking for your truck to sound like a truck that's the one. I have had more than a few people ask me how big of an engine I have. Most swear it's a v8 I just lower my head and say "no it's not".

IISPEEDYII · Apr 23, 2014

Airborne said:
I went with the flow master 10 series. Sounds good with a deep low rumble not ricey at all. From idle to cruising speed. If you keep the first cat that is. After I threw on the header it's a little loud even for me. But if you are looking for your truck to sound like a truck that's the one. I have had more than a few people ask me how big of an engine I have. Most swear it's a v8 I just lower my head and say "no it's not".

Hahaha thats funny, and exactly the sounds I'm looking for, thanks to much!

ABNTROOP · Apr 24, 2014

That's not a coincidence, that's what every I5 owner is after

IISPEEDYII · Apr 24, 2014

ABNTROOP said:
That's not a coincidence, that's what every I5 owner is after

Well Yeahhh, we just wanna fit in with the alphas!

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ABNTROOP · Apr 24, 2014

alrock · Apr 24, 2014

If you have an 06 H3, the cat delete is not an option as the 2nd O2 sensor is after the second cat. On 07s and newer the 2nd 02 sensor is after the primary cat, meaning the second cat is unmonitored and the delete will not affect the electronics. (However, you need to use your own judgment and do your own research regarding emissions laws)

Blake-O · Apr 30, 2014

I installed the MagnaFlow cat back system. I really like it. Tips look nice too.

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ABNTROOP · Apr 30, 2014

Yeah, those tips look sweet, till you hit the wrong incline offroad.

SuperBuickGuy · May 1, 2014

ABNTROOP said:
Yeah, those tips look sweet, till you hit the wrong incline offroad.

I haven't hit them yet.... however, I will be changing them out when I do the new fuel tank to a single - which will also be helpful with my arb inflatable jack (then I don't have to use my air compressor to fill it).

Chook · May 1, 2014

When I installed the Headers on mine the guy got me some mini cats that screw in the O2 sensor holes & trick the computer to think the Cat is still there.

Works same as this one..............

http://www.bigdaddiesgarage.com/mini-cat-cel-fix.html

Exhaust options?

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