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Removing cat and res???
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01-29-2013, 01:23 PM | #1 |
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Removing cat and res???
So I went to a custom exhaust shop in MA, I asked for better sound and flow, he suggested to delete my second cat and my res... Is this the best options? I've seen alot of people do different combinations of deletes and have heard alot of opinions.. Any one with helpful opinions and not just bias
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07' E92 328xi (First BMW)
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01-29-2013, 04:33 PM | #3 |
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02-01-2013, 05:49 PM | #4 |
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Highly recommend performing a secondary-cat-ectomy. We cut those out at my local shop and tossed them in the dust bin. Worthless little pieces of crap!
Now whatever other exhaust mods you do will be a true enhancement. Cheers mate
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Cheers-Bill 2006 E90 (early build 11/05) 325xi 6MT Alpine White, DeBadged, Rogue-ICON, stainless brakelines, Power Slot rotors, CDV delete, post-CAT delete, aFe intake+MAF TimShim, LED interior lighting, Escort Passport 8500 x50 |
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02-01-2013, 08:52 PM | #6 |
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Like !!
Whooo Whoooo !!!
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Cheers-Bill 2006 E90 (early build 11/05) 325xi 6MT Alpine White, DeBadged, Rogue-ICON, stainless brakelines, Power Slot rotors, CDV delete, post-CAT delete, aFe intake+MAF TimShim, LED interior lighting, Escort Passport 8500 x50 |
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02-01-2013, 09:43 PM | #7 | |
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Quote:
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02-02-2013, 12:21 AM | #8 |
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Not that loud. I have PE which is res-less and cat delete and i would say its a good volume
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2007 TiAg 328xi: AA Tune, AFE intake, Full exhaust, 335xi Brakes, H&R RSB, UUC FSB, H&R Sports, Billy Sports...BBS SR 17x8
1985 Gazelle Beige 325e: Poly everything, e24 3.25 LSD, 225 lb weight reduction, Corbeau FX1, Shifter machined by me, roll bar, harness, all the other goodies. My "Racecar"...15x7 BBS RA |
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02-02-2013, 02:20 AM | #9 |
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02-02-2013, 02:07 PM | #10 |
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Secondaries.
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2007 TiAg 328xi: AA Tune, AFE intake, Full exhaust, 335xi Brakes, H&R RSB, UUC FSB, H&R Sports, Billy Sports...BBS SR 17x8
1985 Gazelle Beige 325e: Poly everything, e24 3.25 LSD, 225 lb weight reduction, Corbeau FX1, Shifter machined by me, roll bar, harness, all the other goodies. My "Racecar"...15x7 BBS RA |
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02-02-2013, 02:21 PM | #11 |
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02-02-2013, 04:20 PM | #12 |
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Sorry i was on my phone.. i only got my secondaries off because it was cheaper and i didnt have to buy any O2 sims.. but your understanding is correct
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2007 TiAg 328xi: AA Tune, AFE intake, Full exhaust, 335xi Brakes, H&R RSB, UUC FSB, H&R Sports, Billy Sports...BBS SR 17x8
1985 Gazelle Beige 325e: Poly everything, e24 3.25 LSD, 225 lb weight reduction, Corbeau FX1, Shifter machined by me, roll bar, harness, all the other goodies. My "Racecar"...15x7 BBS RA |
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02-02-2013, 04:33 PM | #13 |
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still debating if this is worth it.
I've been tossing around the idea for months. I've noticed my exhaust is getting louder (as the exhaust ages). My parents even ask, when I rarely have them in the car, if I did something to it as they don't remember it being as loud when I had it new. I kinda want to trust them in thinking its gotten louder because they've only been in it a few times over a pretty good amount of time since I've had it and they're picking up on a difference. |
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