2 new pre-cats = more power?
#1
ISeeWhatYou'reDoingThere
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2 new pre-cats = more power?
I just had both pre-cats replaced because over the last week it's been sounding loud "under there". The exhaust place put them in today, and the man said "it'll have more power now", and I thought he was just being funny, but when I drove away I was shocked at the difference. It was like someone gave me back 50hp. Why is that?
#2
truespin, not tirespin
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The old ones were probably clogged and leaky. That would suggest that you lost power to them due to the restriction they caused, and the fresh, nonclogged cats are just freeing up lost power.
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#10
I break Diff mounts
iTrader: (1)
Hollowed cats sound terrible because the noise bounces around in them.
A silencing unit like a DP should be used.
I had a straight pipe to a shitty cat and it had a high rasp to it.
Once I put the Bonez on it got deeper and growled like a beast.
If I had an NA still I would slap that bad puppy on in a second. No police worries and yet better flow.
To add to the other stuff.
The precats are used for cold emissions and cannot be tested unless you go to the station on a trailor. You'll fail anyways because your main cat hasn't gotten to running temps anyways.
So far The FC is the only car I know with precats. It was a failed attempt at adding high tech crap to our cars(like the cold start assist)
If they look under the car I bet you money they will see the main cat and not realize you should have 2 small bumpy pieces before it.
A silencing unit like a DP should be used.
I had a straight pipe to a shitty cat and it had a high rasp to it.
Once I put the Bonez on it got deeper and growled like a beast.
If I had an NA still I would slap that bad puppy on in a second. No police worries and yet better flow.
To add to the other stuff.
The precats are used for cold emissions and cannot be tested unless you go to the station on a trailor. You'll fail anyways because your main cat hasn't gotten to running temps anyways.
So far The FC is the only car I know with precats. It was a failed attempt at adding high tech crap to our cars(like the cold start assist)
If they look under the car I bet you money they will see the main cat and not realize you should have 2 small bumpy pieces before it.
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Originally posted by Digi7ech
[BSo far The FC is the only car I know with precats. It was a failed attempt at adding high tech crap to our cars(like the cold start assist)[/B]
[BSo far The FC is the only car I know with precats. It was a failed attempt at adding high tech crap to our cars(like the cold start assist)[/B]
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