Bull Run
Well-Known Member
- Thread starter
- #91
Took some pictures of the new exhaust while the car was on jack stands.
3" DP to 3" inlet, followed by dual 2.5" outlets to GT resonator back pipes. Believe it over not, GT resonator outlets are necked down to close to 2.25". I sawed the necked down portions off, but it prevented GT pipes from going into the muffler straight, so I had a shop weld them on with an extension pipe.
The shop also tack welded the joints and clamps to prevent them from moving over time, but it's also preventing me from leveling out the tips. I'll just have them fix it.
Here are my thoughts on this experiment:
1. I went with dual rear pipes because I picked up the GT pipes for free, which allowed me to mock up the exhaust and drive around before welding them.
2. If I were to do this again from scratch, I would've just went with a single 3" pipe out the back, which should save about 10 additional pounds.
3. Compared to the previous setup, this is noticeably louder around low 1,000 RPM to low 2,000 RPM. Not much of a difference during warm idle or cursing around 2,500 RPM, which is the engine speed while I'm cruising on the city highway.
4. I ordered the OBDLink MX so I can use it with Forscan to disable ANC and fake engine noise to see if they make a difference.
5. I'm good with some added noise for weight savings and better flowing exhaust, but stick with GT mufflers if you want something that flows better than EB mufflers but need to keep the noise down as much as possible.
3" DP to 3" inlet, followed by dual 2.5" outlets to GT resonator back pipes. Believe it over not, GT resonator outlets are necked down to close to 2.25". I sawed the necked down portions off, but it prevented GT pipes from going into the muffler straight, so I had a shop weld them on with an extension pipe.
The shop also tack welded the joints and clamps to prevent them from moving over time, but it's also preventing me from leveling out the tips. I'll just have them fix it.
Here are my thoughts on this experiment:
1. I went with dual rear pipes because I picked up the GT pipes for free, which allowed me to mock up the exhaust and drive around before welding them.
2. If I were to do this again from scratch, I would've just went with a single 3" pipe out the back, which should save about 10 additional pounds.
3. Compared to the previous setup, this is noticeably louder around low 1,000 RPM to low 2,000 RPM. Not much of a difference during warm idle or cursing around 2,500 RPM, which is the engine speed while I'm cruising on the city highway.
4. I ordered the OBDLink MX so I can use it with Forscan to disable ANC and fake engine noise to see if they make a difference.
5. I'm good with some added noise for weight savings and better flowing exhaust, but stick with GT mufflers if you want something that flows better than EB mufflers but need to keep the noise down as much as possible.
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