Yonaka Civic Si Coupe Exhaust won't bolt up...

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JT Si

JT Si

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With the PRL frontpipe, the Yonaka exhaust bolted up without any major issues.

Minor issues:

1) The nuts and bolts Yonaka included are shit and clearly not grade 8.8 since one of the nuts rounded off the threads of a bolt with the nut threaded on 4 threads deep.

I ordered replacement high grade hardware so I can rest assured there are no leaks and they won't strip the threads.

2) The factory hangers leave the exhaust far, far too low.

I measured how big mounts should be to nestle the muffler and tips up in the cutout nicely and I have ordered some. Once they get here and I replace the hardware and mounts and ensure it all works well together I'll post more about the mounts and hardware I chose.

In total I'll have spent around $50 on additional hardware to make the exhaust work as it should have, which brings the price from $450 to ~$500. Still an excellent bargain for 3" 304 stainless and an excellent sound.

I'll update once I get the new hangers and hardware.

Honda Civic 10th gen Yonaka Civic Si Coupe Exhaust won't bolt up... IMG_20200607_160658__01

Honda Civic 10th gen Yonaka Civic Si Coupe Exhaust won't bolt up... IMG_20200607_160653__01__01
 
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Soroushshah

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With the PRL frontpipe, the Yonaka exhaust bolted up without any major issues.

Minor issues:

1) The nuts and bolts Yonaka included are shit and clearly not grade 8.8 since one of the nuts rounded off the threads of a bolt with the nut threaded on 4 threads deep.

I ordered replacement high grade hardware so I can rest assured there are no leaks and they won't strip the threads.

2) The factory hangers leave the exhaust far, far too low.

I measured how big mounts should be to nestle the muffler and tips up in the cutout nicely and I have ordered some. Once they get here and I replace the hardware and mounts and ensure it all works well together I'll post more about the mounts and hardware I chose.

In total I'll have spent around $50 on additional hardware to make the exhaust work as it should have, which brings the price from $450 to ~$500. Still an excellent bargain for 3" 304 stainless and an excellent sound.

I'll update once I get the new hangers and hardware.

IMG_20200607_160658__01.jpg

IMG_20200607_160653__01__01.jpg
were ya able to get a better fitment with the aftermarket hangers?
 
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JT Si

JT Si

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were ya able to get a better fitment with the aftermarket hangers?
Lol I did say I'd update, didn't I? I replaced the 4 rear hangers with these torque solutions ones. It did help nestle the exhaust up and it's been alright now for over 10,000 miles. I have banged/scraped the exhaust but that's due to being lowered and driving on broken down old gravel/dirt and BLM roads, not really the exhausts fault. I shouldn't treat the car, especially with what I've done to it, as an off road vehicle.

https://www.ebay.com/itm/273494753755
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