Si exhaust
Si exhaust
Hello all, I am new to the forum and just wanted to say hello to all 👋🏼
Just bought a used complete exhaust from an 8th gen. So far I only installed the muffler. The sound is mild but if I install the rest of the cat back, will this made it sound better and give me better performance? Or just leave the stock as is....
Just bought a used complete exhaust from an 8th gen. So far I only installed the muffler. The sound is mild but if I install the rest of the cat back, will this made it sound better and give me better performance? Or just leave the stock as is....
Joined: Aug 2003
Posts: 21,620
Likes: 1,252
From: Las Vegas, NV
Rep Power: 512 










Re: Si exhaust
you might gain a little bit from it. OEM exhaust for the R18 engine-equipped trims is just under 2", while the Si exhaust is right around 2.25"
Seems like the axleback is a direct bolt on, but the midpipe, you'll have to have a bit hacked off and a flange welded in to fit.
From what I've read, max recommended exhaust size is pretty on par with what I was used to with the 7thgen D17, 2.25 is the sweet spot, 2.5" at the most. You may lose a bit on the low end, but you'll gain in the top end.
Seems like the axleback is a direct bolt on, but the midpipe, you'll have to have a bit hacked off and a flange welded in to fit.
From what I've read, max recommended exhaust size is pretty on par with what I was used to with the 7thgen D17, 2.25 is the sweet spot, 2.5" at the most. You may lose a bit on the low end, but you'll gain in the top end.
Re: Si exhaust
you might gain a little bit from it. OEM exhaust for the R18 engine-equipped trims is just under 2", while the Si exhaust is right around 2.25"
Seems like the axleback is a direct bolt on, but the midpipe, you'll have to have a bit hacked off and a flange welded in to fit.
From what I've read, max recommended exhaust size is pretty on par with what I was used to with the 7thgen D17, 2.25 is the sweet spot, 2.5" at the most. You may lose a bit on the low end, but you'll gain in the top end.
Seems like the axleback is a direct bolt on, but the midpipe, you'll have to have a bit hacked off and a flange welded in to fit.
From what I've read, max recommended exhaust size is pretty on par with what I was used to with the 7thgen D17, 2.25 is the sweet spot, 2.5" at the most. You may lose a bit on the low end, but you'll gain in the top end.
Joined: Aug 2003
Posts: 21,620
Likes: 1,252
From: Las Vegas, NV
Rep Power: 512 










Re: Si exhaust
I've never owned a car with a K20 under the hood, so I couldn't recommend one with any merit.
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