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| 02-05-2024, 03:12 PM | #1 |
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Captain
 
84
Rep 924
Posts
Drives: '08 Z4 M Coupé // '09 X5 d
Join Date: Apr 2010
Location: Sioux Falls, South Dakota
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Supercharger + catless headers... TOO LOUD?
I plan on upgrading to a SC and I've also got a set of catless headers not installed yet. My car already has RE Diablo axle-back exhaust installed. It definitely sees way more road than track, so is this setup just too obnoxious? But is there significant benefit for the SC to have catless headers?
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'08 Z4 ///M Coupé (#1765/1815) — 1 of 68 Sepang Bronze / Black Nappa / Madeira Wood / 1 of 1 this combo
19" Advan RS / AP Racing / Bridgestone RE-11 / Autosolutions SSK / R.E. Diablo / R.E. trans mounts '09 X5 35d — Space Grey / Saddle Brown 20" Forgestar F14 / SCR Delete |
| 02-05-2024, 03:57 PM | #2 | |
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Colonel
 
2429
Rep 2,704
Posts
Drives: Built not Bought 04 Z4 VF
Join Date: Feb 2013
Location: Kitchener Ontario Canada
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Quote:
I can say you will have noxious fumes without cats, especially with a fuel rich tune required for the FI.
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 W2A Intercooled Vortech V3Si, custom ducting, Alpha N, 60# Bosch,2.62 pulley, multi port WMI, Severn Tuning(pokeybritches), Tial, magnaflow,SS race muffler, 42 design,3.91LSD, H&R, Hotchkis,ST coils,Konis, Megan camber arms, AKG SS, Nylon mounts, Poly bushings, Carbon interior, CF Aero.APEX |
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