Quieter exhaust @ 400+
 

Hi again all,

looking for some advice this time on exhausts, I have a type r running 425/430 with a full decat. Car drives great but unfortunately the exhaust is like a bloody cannon, and with the aim of the car being to look somewhat standard I'd like to change it.

I believe the exhaust on there at the moment is an old scoobyparts tornado system, I have a prodrive backbox off of another classic sitting around so was thinking of giving that a try to quiet things down a bit. Am I likely to run into any issues doing this? I've had a search but can't seem to find anyone running one over 400.

any thoughts?

Cheers 👍
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I went through a good few different options before settling on a prodrive bbox, people will say try a resonated centre section but it makes feck all difference if you've got a loud back box and it's a decat system, I find the Prodrive still sounds good and doesn't drone at cruising speed, takes a bit to get used to cos you'll think it sounds **** and too quiet compared to the other box, depends what you use the car for aswell mines a daily driver so the loud exhaust wears thin pretty quickly

I have found that Miltek and Haywood and Scott systems in the past to be the quietest, both capable of the power you wish to run.


The Miltek from experience was relatively smooth on idle and only really began to make any sort of noise when at full chat.

cobra 3 inch track friendly system will do the number and isnt too loud

Cheers guys,

i've looked at the cobra systems before, although ideally I was hoping not to spend that much and just replace the rear box. Likewise looked at the H and S exhausts, I was hoping to keep my current 2.5" pipework.

pretty sure they do a 2.5 inch version as well. but at 400 3 inch would be better anyway

I wouldn't mind a quieter 3" system any suggestions don't really want to buy brand new

I have a full 3" resonated Milltek system - running 447 - and I think the sound is great, not too loud at all

looking on their site you can't just buy the rear section annoyingly. I don't really want to buy a full system again, plus upgrading to 3" would mean another visit to mapper. Main thing i was wondering was whether the prodrive backbox would be OK at this power level that's all.

I run a revolution/jetex 3" straight thru with just a back box and it's quiet cruising but comes alive on full chat

+1. Surprisingly quiet for just a back box with a 4" tail pipe