Pontiac Solstice Forum - View Single Post - Anyone Have the Werks High Flow Cat?

Quote:

Originally Posted by 66cat389

I think any high flow cat you go with will give a p0420 error code without the ECU tune. I might be wrong on that, but that's what I've come to understand.

I went with grade 8 bolts right when I put it on. Don't get me wrong, the bolts they send are okay. But I am just paranoid.

You might want to consider a Remflex or graphite type gasket to fix your leaks. I have had very good luck with them, and it might help you out as well.

I wasn't knocking the Werks high flow cat at all. I've been very impressed with the performance gain, and I couldn't imagine going back to stock. I think the noise is more due to the fact that more air is being allowed to go through the cat than was allowed with the stock setup.

Nighttamer had the same issue with his Clear Image high flow cat.

I don't regret my purchase at all.

You are correct. I had no problem with the Clear Image cat or the header. My problem was the droan or tinny sound caused by the amount of flow. I think that the exhaust was not able to handle the larger amount of flow correctly. Again the Solo exhaust seems to handle it due to the tinny sound being gone. Again the tone is great and I have not felt no power loss.

__________________
#0309 Ordered 7/5/05 Recieved 2/24/06
Envious beige/steel loaded minus onstar & smokers pkg.
Clear Image Long Tube Header-SOLO MACH Exhaust
3M Clear Bra-Little Chromies-Kappashield-Radium Chrome Wheels-JPM Shifter-JPM Visor Covers
Kaparoos-Autovation Aluminum Race Pedals-Flame Airbrushing
DDM S/C Stage II.
Lovin every minute of it

	nighttamer Member Join Date: Mar 2006	Quote: Originally Posted by 66cat389 I think any high flow cat you go with will give a p0420 error code without the ECU tune. I might be wrong on that, but that's what I've come to understand. I went with grade 8 bolts right when I put it on. Don't get me wrong, the bolts they send are okay. But I am just paranoid. You might want to consider a Remflex or graphite type gasket to fix your leaks. I have had very good luck with them, and it might help you out as well. I wasn't knocking the Werks high flow cat at all. I've been very impressed with the performance gain, and I couldn't imagine going back to stock. I think the noise is more due to the fact that more air is being allowed to go through the cat than was allowed with the stock setup. Nighttamer had the same issue with his Clear Image high flow cat. I don't regret my purchase at all. You are correct. I had no problem with the Clear Image cat or the header. My problem was the droan or tinny sound caused by the amount of flow. I think that the exhaust was not able to handle the larger amount of flow correctly. Again the Solo exhaust seems to handle it due to the tinny sound being gone. Again the tone is great and I have not felt no power loss. __________________ #0309 Ordered 7/5/05 Recieved 2/24/06 Envious beige/steel loaded minus onstar & smokers pkg. Clear Image Long Tube Header-SOLO MACH Exhaust 3M Clear Bra-Little Chromies-Kappashield-Radium Chrome Wheels-JPM Shifter-JPM Visor Covers Kaparoos-Autovation Aluminum Race Pedals-Flame Airbrushing DDM S/C Stage II. Lovin every minute of it