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💨 atp automotive graywerks 101122 exhaust manifold/catalytic converter: efficient exhaust system upgrade logo

💨 ATP Automotive Graywerks 101122 Exhaust Manifold/Catalytic Converter: Efficient Exhaust System Upgrade Review

7

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Very good

Revainrating 4 out of 5  
Rating 
4.1
🌫️ Exhaust & Emissions, 🛠️ Replacement Parts

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Description of 💨 ATP Automotive Graywerks 101122 Exhaust Manifold/Catalytic Converter: Efficient Exhaust System Upgrade

Engineered as direct OE replacement ensuring manifold will line up and flow like the original unit. High grade steel and precious metals resist fatigue and provide long lasting reliable catalyst performance. Developed based on OEM ECU monitors eliminating catalytic converter check engine light and restoring correct emission levels. Upper and lower flange gaskets along with lower flange hardware are included. (Heat shields and plugs are included where needed.). Limited 5 Year Warranty. Fit type: Vehicle Specific.

Reviews

Global ratings 7
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Type of review

Revainrating 3 out of 5

Easy installation on a 1996 Honda Civic LX.

Perfect for my 1996 Honda Civic LX, 1.6 liter engine. You have to buy it separately. The check engine light did not come on prior to the replacement and still does not. Emission test passed immediately after installation. If you have any questions please ask! (If this was helpful please click the helpful link below.) Thank you!________________________________________________________________ UPDATE 24/02/2015 - Almost a year after installation, still working, problems with it, no check engine…

Pros
  • good thing
Cons
  • old

Revainrating 4 out of 5

Rough casting, cheap components, but they did their job.

The quality has deteriorated since my last purchase in 2012. Does not include round metal O-ring. Does not include new exhaust studs. I had to use a pry bar and vise to bend the heat shield at the bottom to attach the gasket to the studs. Mounting to the midpipe was tricky - I recommend unscrewing at least the bracket and possibly the tuned pipe (don't forget to buy new exhaust spring bolts if you need to unbolt the tuned pipe). However, it actually fixed my p0420 code. The gaskets looked…

Pros
  • Good product for the price
Cons
  • There are problems

Revainrating 5 out of 5

Very good but not as advertised

This product works great and has cleared some of my codes from my Check Engine Light along with some new O2 sensors but what is shown in the picture in the listing not that what i received. I received an accessory that had no purpose for the catalytic converter advertised as two pieces but I did receive a solid welded piece. Also, the gasket that came with it almost didn't fit the bolts on the underside and the gasket that fits the engine wasn't worth using. I was able to attach the bottom…

Pros
  • Excellent overall performance
Cons
  • Only available in black

Revainrating 4 out of 5

Easy installation. Working now

I have a 1998 Honda Civic Lx. The old manifold had a crack and I had a P0420 CEL code. After a long search for the best replacement manifold, I decided on ATP. Installation turned out to be very easy. Everything fitted perfectly, and since it's a little thinner than the stock header, it was even a little easier to install. There were only screws for attaching the exhaust pipe. Motor mounting bolts are not supplied so keep the old ones. The hardest part was getting the old O2 sensors out. I…

Pros
  • Hands free
Cons
  • Some small things

Revainrating 5 out of 5

Fits D16Y7 on a 2000 Civic with code P0420

I had code P0420 and found the exhaust manifold was cracked when I removed the heat shield. I bought an East Catalyzed version of this header and cat combo from rockauto, but it didn't have a mounting bolt hole on the bottom or replacement exhaust pipe bolts. I don't think this version of the ATP is as strong or as high quality but I needed a straight fit and it fitted easily after the old one failed. No modifications are required at all. Make sure you have a D16Y7 engine or it won't fit. The…

Pros
  • Pleasant to use
Cons
  • Communication with seller

Revainrating 4 out of 5

ASTONISHING. EASY OEM FIT. NO check engine light now!

At a local dealership I was offered about $1300 for a replacement catalytic converter which caused the check engine light to stay on in my car for a year. The mechanic also pointed out a cracked exhaust manifold, which is said to be common on '96-2000 Civics. He said it could go as high as $1,500 depending on what else he can find. I checked out Autozone and Advanced Auto and they were quite expensive but still cheaper than the local store. Then I thought of my FAVORITE place on the internet…

Pros
  • GOLS certified
Cons
  • Newer model could have been chosen

Revainrating 4 out of 5

No complaints yet; be sure to do your homework.

After years of running my Civic LX 98 with a cracked manifold, I finally decided to replace it. The ATP was almost an exact factory fit (see pics uploaded) and arrived exactly as described. The kit included new gaskets (mounting to the block and down tube), new hardware to mount the down tube, a new heat shield and bolts, and a warranty card. Manifold and catalytic converter are already installed. My only complaint is that the catalytic converter seemed to be mounted too close to the bottom of…

Pros
  • Consistent test results
Cons
  • Good, but not great