'Lil Red Wagon

Any tips on a good sounding exhaust that won't also creat a lot of interior noise on the highway.

SS fan

Thats a tuff one any one that sounds louder outside will be louder inside I have duals and rainman has a single we had them running side by side and they sounded almost identical His is a panel and he was able to insulate the cabin to make it quiet.I have noticed the time it is louder inside is between 2500 and 3600 on hard acelleration. When driving down the highway its not loud.If you like it quiet inside I'd keep the stock exhaust.

1Panel2NV

Exhaust sound is subjective. I would listen to videos instead of ask people what sounds best. Most people will tell you an exhaust system sounds good even if they don't like it because they just spend a couple to several hundred dollars for it.

Keep in mind the sound differences between turbo and NA as well.

843de

I run GMPP exhausts on both the '07 and '11 and while there is more of a bark under hard acceleration, they are both as quiet as stock on the highway. You always have the option of adding extra sound insulation like Dynamat if the exhaust you choose is too vocal from the inside. Maybe you can get together with a member in your area who is running a performance exhaust for a ride along to hear for yourself. As with anything, exhaust sound is subjective. After all, Mazda spent tens of thousands of dollars and hundreds of hours making the exhaust of the MX-5 Miata sound just right to the ears of sports car owners.

Gas Man

I agree it's subjective. Some say the Magnaflow exhaust is too loud but I think it's just right. Not too loud, not too quiet. But then again it's louder than stock (thank god) but it's no 40 series flow masters on a V-8 either.

843de

Yeah, but what you wouldn't give to have your HHR sound like it was running a V-8 through 40 series Flowmasters, thunder 'o the gods.

Gas Man

Or for that matter, the sound of a knucklehead harley.

SS fan

Do you think Trifecta has a tune for that?? I drove the wife's v8 bmw after I washed it. and I gotta admit I miss the sound of it.

843de

Wish they did, I think they'd have a line out the door. There is nothing like the sound of a V-8, nothing in the world. My wife says I get this "goofy drooling idiot" look when I fire up the SS, she's right!

SS fan

I was thinking of your SS too when I was reading you Thunder'O the gods post thats one sweet toy,I'm going for the Trifecta tune when I met Rainman he's got it with a on off wired to the cruse button.