N54 135i exhaust question

fuzey13 · 12-23-2019, 10:39 AM

Hey guys , I have a n54 135i with M performance axelback and VRSF catless downpipes with JB4. I do have some crackle and pop but I'm looking for a little more aggressiveness to it. I do have stock mid pipes with my res and cats in it. My question is what would be the best move to do to get more aggressive crackles and pops? Remove the res? Remove the cats? Remove both? Or is there any go to aftermarket midpipes? Any info is appreciated

Elderado82 · 12-23-2019, 10:47 AM

You could do all of that, maybe get a few more burbles and pops out of the exhaust, and then run into the massive issue of exhaust drone. Or you can buy a tune ie. BMW Performance, MHD (I recommend), Dinan, etc. etc... The point, is that what you're looking for is more on the tuning side of things and less on the parts side.

Eyeman · 12-29-2019, 11:05 AM

I agree, it's more the tune. I assume you've noticed if you use slight throttle while braking you get more burbles. I not changing tunes, I'd try messing with the intake next if you haven't already done that.

12-23-2019, 10:39 AM	#1
fuzey13 New Member 5 Rep 11 Posts Drives: BMW 1351 /N54 Join Date: Jun 2019 Location: Toronto Ontaro iTrader: (0)	N54 135i exhaust question Hey guys , I have a n54 135i with M performance axelback and VRSF catless downpipes with JB4. I do have some crackle and pop but I'm looking for a little more aggressiveness to it. I do have stock mid pipes with my res and cats in it. My question is what would be the best move to do to get more aggressive crackles and pops? Remove the res? Remove the cats? Remove both? Or is there any go to aftermarket midpipes? Any info is appreciated
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12-23-2019, 10:47 AM	#2
Elderado82 Private 42 Rep 71 Posts Drives: 2021 M340i XDrive Join Date: Apr 2018 Location: Lincoln, NE iTrader: (0)	You could do all of that, maybe get a few more burbles and pops out of the exhaust, and then run into the massive issue of exhaust drone. Or you can buy a tune ie. BMW Performance, MHD (I recommend), Dinan, etc. etc... The point, is that what you're looking for is more on the tuning side of things and less on the parts side.
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12-29-2019, 11:05 AM	#3
Eyeman Colonel 121 Rep 2,037 Posts Drives: 2008 135 blk, blk, step Join Date: Jan 2009 Location: Atlanta, GA iTrader: (0) Garage List 1994 Porsche 968 Cab [0.00] 2017 AMG GTS [0.00] 1994 Porsche 968 Coupe [0.00] 1977 Mercedes 450SE ... [0.00] 2008 135 [8.00]	I agree, it's more the tune. I assume you've noticed if you use slight throttle while braking you get more burbles. I not changing tunes, I'd try messing with the intake next if you haven't already done that. __________________ Injen, RR OCC, MadDad Whisper, donut spare, 19x8.5et43fr 19x9.5et45r Volk LE37's, rear fenders rolled/pulled, PSS4S 225/35fr 255/30r, KW V1's, AR coated catless dps, Cross strutbar, CF grills and license plate holder, iCarbon diffuser, ETS black anodized FMIC, M3 control arms, Quaife, ER chargepipe, ForgeDV's, Topspeed Custom Tune, V3sims, Braille, Andrey_GTA rear hub mod, Ebay Mstyle front bumper and performance style side skirts.
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