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      07-01-2015, 06:31 AM   #1
Sam G
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Intake valve walnut blasting

Hi people. I have an n54 135i coupe and have just had my intake valves walnut blasted by SWSS Mini in Cardiff. First off I have to give a shout out to the guys at SWSS. They did a brilliant job with great customer service and were a really friendly bunch of guys; something I think that has been lost in recent years when it comes to car mechanics! The price was also very good considering the time it takes to do the job.

So the pictures below show the before and after. The difference on the road is very positive. My car has around 69000 miles on it and the engine now revs more freely and has a much crisper exhaust note.

As you can see the results speak for themselves.

Happy to answer any questions. ☺
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Last edited by Sam G; 07-01-2015 at 07:20 AM.
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      07-01-2015, 02:36 PM   #2
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Has anyone had this done?
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      07-02-2015, 04:59 PM   #3
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      07-03-2015, 12:06 AM   #4
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Quote:
Originally Posted by Sam G
Has anyone had this done?
Just had it done. I had the shop also do fmic and intakes.

It was incredibly more responsive. I couldn't say how much was to the walnut blasting or the bolt ons.
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      07-06-2015, 05:44 PM   #5
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Quote:
Originally Posted by ChiBimmer View Post
Just had it done. I had the shop also do fmic and intakes.

It was incredibly more responsive. I couldn't say how much was to the walnut blasting or the bolt ons.
Well I had it done as a stand alone service and the difference was massive. Having had all those other mods at the same time must have been mind blowing!
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      07-06-2015, 05:48 PM   #6
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Quote:
Originally Posted by Sam G
Quote:
Originally Posted by ChiBimmer View Post
Just had it done. I had the shop also do fmic and intakes.

It was incredibly more responsive. I couldn't say how much was to the walnut blasting or the bolt ons.
Well I had it done as a stand alone service and the difference was massive. Having had all those other mods at the same time must have been mind blowing!
I only drove it about thirty minutes in this state. Then I installed the Cobb. Holy crap!
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      07-07-2015, 03:49 AM   #7
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Quote:
Originally Posted by ChiBimmer View Post
I only drove it about thirty minutes in this state. Then I installed the Cobb. Holy crap!
That must have been something! Is there a reason you guys in the states all go for piggy back tunes ie Cobb, JB4 ect rather than a 'proper' ecu remap with rolling road etc?
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      07-07-2015, 07:50 AM   #8
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Quote:
Originally Posted by Sam G
Quote:
Originally Posted by ChiBimmer View Post
I only drove it about thirty minutes in this state. Then I installed the Cobb. Holy crap!
That must have been something! Is there a reason you guys in the states all go for piggy back tunes ie Cobb, JB4 ect rather than a 'proper' ecu remap with rolling road etc?
Cobb is not a piggyback
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      07-07-2015, 08:28 AM   #9
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Quote:
Originally Posted by ChiBimmer View Post
Cobb is not a piggyback
My bad but question still stands for the JB4. It seems very popular. What are the advantages of a Cobb over the aforementioned old school remap?
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      07-07-2015, 08:36 AM   #10
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Quote:
Originally Posted by Sam G
Quote:
Originally Posted by ChiBimmer View Post
Cobb is not a piggyback
My bad but question still stands for the JB4. It seems very popular. What are the advantages of a Cobb over the aforementioned old school remap?
Cobb plugs into the obd port. Jb4 installation is more complicated. There's a lot of good threads here to search. I wish I were knowledgable and could give you a better answer.
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      07-07-2015, 09:13 AM   #11
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No worries. I'm not that versed on the whole things either.
Were your intakes as bad as mine when you got them blasted?
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      07-20-2015, 01:32 PM   #12
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How much did you pay for the walnut blasting service??
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      07-21-2015, 03:53 AM   #13
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Quote:
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How much did you pay for the walnut blasting service??
The original price was 299. Did a bit of haggling and got it down to 250. I was their first n54 customer and they were keen to get my business, which is why they dropped the price so much. A BMW dealer in Bristol quoted me "around 400-500"!!
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