Do or don't.....help

4.2 V8 32v Naturally Aspirated - 414 bhp
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RS4JAMO
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Do or don't.....help

Post by RS4JAMO » Tue Sep 08, 2015 3:34 pm

Hi,

My car is being dropped off tomorrow at MRC :jump_clap: for a full CC, stage 2 remap and de-flap. I am considering getting the pre-cats done as well, can anyone comment on whether this is worth doing or not and if so what impact it had on noise, performance and driveability?

I guess a full decat would be better but I am not on first name terms with my MOT tester so that would be an issue.

If anyone has had the above done in stages and therefore can comment on the difference at each stage that would be really good.

Cheers
RS4 B7 Saloon, Phantom Black with SS+. LED's all inside & out with Dectane LED tailights. deflap, MRC Stage 2, Carbon Clean, no pre-cats, Blueflame non res cat back exhaust, AP Racing Discs, Titanium alloys and mirrors, 438PS
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toyneg
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Re: Do or don't.....help

Post by toyneg » Tue Sep 08, 2015 4:10 pm

i had mine done at the same time so can't really comment unfortunately - but enjoy it when you go to drive it home as i know exactly how crazy that drive is to see what the car 'should' be like as standard. you'll realise how slow it was before haha
Glacier White 2017 S3 Saloon with all the Tech.
Gone but not forgotten - B7 RS4 Saloon Black - H&R spacers, Tints, Gun Metal Alloys, MRC Stage 2, Pre Cats, Milltek Non Res, K/W Springs, MRC Full Carbon clean - 431ps
previous - B6 A4 1.8T S-Line 215PS
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Ozzyz
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Re: Do or don't.....help

Post by Ozzyz » Tue Sep 08, 2015 4:25 pm

Definitely do it, my car went there back in feb for a few bits, one of which was to gut the pre-cats and i really noticed the difference. While it is there having all the other bits done you may as well have the pre-cats gutted, it will improve the car further and sound even better! With CC, stage 2 map and pre-cat removal your car will be a different animal!
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JCviggen
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Re: Do or don't.....help

Post by JCviggen » Tue Sep 08, 2015 4:31 pm

Do it. Precats are the worst thing on your car.
B7 RS4 saloon Misano red, comfy seats, JHM tune & JHM full exhaust with cats and resonators - gone.
C5 RS6 Avant Daytona/Cognac - gone.
981 Cayman GTS Gray/Orange.
My youtube
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esp_mm-270
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Re: Do or don't.....help

Post by esp_mm-270 » Tue Sep 08, 2015 4:43 pm

JCviggen wrote:Do it. Precats are the worst thing on your car.
......and the biggest hp gain whilst keeping legal (not including forced induction or gas).
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RS4JAMO
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Re: Do or don't.....help

Post by RS4JAMO » Thu Sep 17, 2015 10:04 pm

Just wanted to agree with all the posts, went for the pre-cat gutting and glad I did, revs much smooth, different tone but not in a bad way and breathes a lot easier.....worth every penny and will pass the MOT as well!

Thanks for the advice guys! :jump_clap:
RS4 B7 Saloon, Phantom Black with SS+. LED's all inside & out with Dectane LED tailights. deflap, MRC Stage 2, Carbon Clean, no pre-cats, Blueflame non res cat back exhaust, AP Racing Discs, Titanium alloys and mirrors, 438PS
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edge
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Re: Do or don't.....help

Post by edge » Fri Sep 18, 2015 3:19 pm

esp_mm-270 wrote:
JCviggen wrote:Do it. Precats are the worst thing on your car.
......and the biggest hp gain whilst keeping legal (not including forced induction or gas).

X2!!!!!!!!!
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FA57GTA
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Re: Do or don't.....help

Post by FA57GTA » Sun Sep 20, 2015 10:24 am

How much did all that work cost at MRC if you don't mind me asking? I want the same done to mine in the near future. Thanks.
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neilparf
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Re: Do or don't.....help

Post by neilparf » Sun Sep 20, 2015 12:23 pm

FA57GTA wrote:How much did all that work cost at MRC if you don't mind me asking? I want the same done to mine in the near future. Thanks.
CC full - £822.92.
Stage 2 Remap - £650.00

Inc VAT.

http://www.mrctuning.com/index.php/audi ... ns/rs4-b7/
Gone but never forgotten:
2007 RS4 B7 Saloon, Metallic Silver with SS+.
LED's all round and Dectane LED tailights. KDS detail and paint. Lepsons black chrome, heavy on the silver wheels. JCWeldFab full system - valved and no pre-cats. MRC stage 2, de-flap and full carbon clean - 438PS and 489NM. HEL brake lines. H&R Spacers. Gtechniq C1 and EXO V2 coatings. 2010+ RNS-E. On the MRC dyno: http://youtu.be/y_k0VJ2--y8
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