The91kwbeast
Active Member
- Joined
- Jun 12, 2022
- Messages
- 164
- Reaction score
- 89
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- Age
- 36
- Location
- Sydney
- Members Ride
- VF Calais V
It would seem so. I'm booked in to head back to Rapid again and add more hotdogs on my marriage savers - will report back.An exhaust fabricated at a exhaust shop, using quality resonators and mufflers is what you need
The centre resonators that come standard, and the resonators that 99% of aftermarket exhausts use are cheap rubbish without any internal volume or real though in the actual design
It is the same with the mufflers used
Large bodied resonators and mufflers is what is required
I'm running 1 7/8 4:1 headers to the Sureflo 3.5" single on my blown VX SS with 3.46 rear, the center muffler and rear resonator both have large bodies, there is no drone at any RPM, and both me and the Mrs do alot of hwy miles where drone would be unacceptable
With the windows up and cruising at 100 - 110kph you wouldn't know the engine was running until you mashed the loud pedal
This pic isn't mine, but the exhaust is typical to mine, the muffler is in the middle (basically the biggest that fits) with the big (huge) resonator at the rear
View attachment 240455
Disclaimer: my exhaust shakes the house when it starts up in the garage, but sitting inside it is nice and quite with only a slighty shake from the cam
Again it's a very poor reflection on the industry (excluding Rapid Exhaust who have actually tried here!) to not bother to understand the car/engine better. It's really lazy stuff.
Like seriously - my 2nd/wife's car is a Kia Cerato GT (turbo). Resonator delete costs $150 - sounds great like an AMG A45 and is noise & emissions compliant, and drone free (dual clutch auto probably helps). People spend thousands on their Commodore for a full exhaust, and achieve none of those.
I've also come to the conclusion that:
1. Many off the shelf brands, and the tuners that sell them, create products for the sole objective of max power figures. Many are selling 100 or 200 cpi cats in their off the shelf systems to generate the quoted power figures - which would instant fail emissions test.
a) Even worse are the idiots who go MAFless - instant fail again
2. Next is they are selling products to achieve a certain sound, which are almost always too loud and fail the noise test - in addition to having drone issues on automatics.
3. Combination of the above two points means instant fail on rego next renewal, unless you have a dodgy mate that will pass the car. Then when you go to sell it - the next bloke can't get it registered either!
I just simply couldn't fathom paying $3.5k+ for a full exhaust (oh - which then needs to be tuned with the cats change, so full cost more like $4.5k) only to be defected (noise + emissions) and take it all off again. WTF is the point (unless you're just taking it to race/drags every few weeks).
Industry is full of lazy crooks mate looking to make a quick buck on labour and parts.